/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:17:51,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:17:52,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:17:52,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:17:52,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:17:52,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:17:52,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:17:52,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:17:52,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:17:52,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:17:52,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:17:52,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:17:52,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:17:52,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:17:52,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:17:52,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:17:52,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:17:52,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:17:52,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:17:52,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:17:52,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:17:52,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:17:52,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:17:52,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:17:52,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:17:52,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:17:52,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:17:52,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:17:52,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:17:52,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:17:52,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:17:52,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:17:52,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:17:52,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:17:52,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:17:52,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:17:52,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:17:52,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:17:52,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:17:52,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:17:52,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:17:52,138 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 [2020-09-21 12:17:52,189 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:17:52,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:17:52,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:17:52,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:17:52,193 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:17:52,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:17:52,193 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:17:52,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:17:52,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:17:52,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:17:52,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:17:52,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:17:52,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:17:52,196 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:17:52,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:17:52,196 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:17:52,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:17:52,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:17:52,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:17:52,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:17:52,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:17:52,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:17:52,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:17:52,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:17:52,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:17:52,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:17:52,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:17:52,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:17:52,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:17:52,199 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:17:52,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:17:52,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:17:52,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:17:52,664 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:17:52,665 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:17:52,667 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-21 12:17:52,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f027840c9/c97602e7dff24a5d927655748f20cfd5/FLAG8f927d692 [2020-09-21 12:17:53,484 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:17:53,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-21 12:17:53,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f027840c9/c97602e7dff24a5d927655748f20cfd5/FLAG8f927d692 [2020-09-21 12:17:53,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f027840c9/c97602e7dff24a5d927655748f20cfd5 [2020-09-21 12:17:53,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:17:53,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:17:53,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:17:53,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:17:53,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:17:53,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:17:53" (1/1) ... [2020-09-21 12:17:53,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:53, skipping insertion in model container [2020-09-21 12:17:53,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:17:53" (1/1) ... [2020-09-21 12:17:53,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:17:53,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:17:54,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:17:54,345 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:17:54,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:17:54,462 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:17:54,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54 WrapperNode [2020-09-21 12:17:54,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:17:54,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:17:54,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:17:54,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:17:54,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (1/1) ... [2020-09-21 12:17:54,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (1/1) ... [2020-09-21 12:17:54,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (1/1) ... [2020-09-21 12:17:54,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (1/1) ... [2020-09-21 12:17:54,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (1/1) ... [2020-09-21 12:17:54,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (1/1) ... [2020-09-21 12:17:54,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (1/1) ... [2020-09-21 12:17:54,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:17:54,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:17:54,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:17:54,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:17:54,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (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 [2020-09-21 12:17:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:17:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:17:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:17:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:17:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:17:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:17:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:17:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:17:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:17:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:17:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:17:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:17:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:17:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:17:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:17:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:17:54,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:17:54,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:17:54,689 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:17:54,689 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:17:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:17:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:17:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:17:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:17:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:17:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:17:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:17:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:17:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:17:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:17:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:17:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:17:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:17:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:17:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:17:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:17:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:17:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-21 12:17:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-21 12:17:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-21 12:17:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:17:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:17:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:17:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:17:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:17:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:17:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:17:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:17:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:17:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:17:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:17:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-21 12:17:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:17:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:17:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:17:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:17:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:17:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:17:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:17:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:17:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:17:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:17:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:17:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:17:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:17:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:17:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:17:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:17:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:17:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:17:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:17:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:17:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:17:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:17:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:17:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:17:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:17:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:17:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:17:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:17:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:17:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:17:54,700 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:17:54,700 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:17:54,700 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:17:54,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-21 12:17:54,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-21 12:17:54,700 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:17:54,701 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:17:54,701 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:17:54,701 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:17:54,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:17:54,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:17:54,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:17:55,777 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:17:55,777 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:17:55,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:17:55 BoogieIcfgContainer [2020-09-21 12:17:55,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:17:55,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:17:55,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:17:55,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:17:55,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:17:53" (1/3) ... [2020-09-21 12:17:55,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9eadfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:17:55, skipping insertion in model container [2020-09-21 12:17:55,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:54" (2/3) ... [2020-09-21 12:17:55,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9eadfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:17:55, skipping insertion in model container [2020-09-21 12:17:55,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:17:55" (3/3) ... [2020-09-21 12:17:55,793 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2020-09-21 12:17:55,805 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:17:55,816 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:17:55,839 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:17:55,871 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:17:55,872 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:17:55,872 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:17:55,872 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:17:55,872 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:17:55,872 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:17:55,872 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:17:55,873 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:17:55,900 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2020-09-21 12:17:55,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-21 12:17:55,912 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:17:55,913 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:17:55,914 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:17:55,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:17:55,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1963515353, now seen corresponding path program 1 times [2020-09-21 12:17:55,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:17:55,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855092109] [2020-09-21 12:17:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:17:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:56,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:56,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:57,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:57,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:17:57,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:17:57,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1072 [2020-09-21 12:17:57,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:57,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:57,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:17:57,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:57,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:17:57,819 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:17:57,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:17:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:57,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:57,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:17:57,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 12:17:57,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:17:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:57,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:17:57,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:17:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:57,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:57,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:57,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:17:57,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:57,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:17:57,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:57,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:57,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:17:57,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:57,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:17:57,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:17:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:57,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:57,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:57,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:17:57,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:57,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:17:57,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:17:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:17:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:17:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:57,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:57,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:57,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:17:57,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:57,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:17:57,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:17:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:57,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:17:57,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:17:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:57,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:57,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:57,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:17:57,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:57,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:17:57,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:57,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:57,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:17:57,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:57,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:17:58,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:17:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:58,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:58,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:58,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:17:58,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:58,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:17:58,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:17:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:58,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:17:58,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:17:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:58,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:58,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:58,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:17:58,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:58,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:17:58,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:58,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:58,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:17:58,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:58,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:17:58,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:17:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:58,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:58,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:58,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:17:58,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:58,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:17:58,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:17:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:17:58,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:17:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:58,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:58,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:58,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:17:58,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:58,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:17:58,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:17:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:58,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:17:58,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:17:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:58,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:17:58,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:17:58,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:17:58,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:17:58,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:17:58,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:17:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:17:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:17:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:17:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:17:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:17:58,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855092109] [2020-09-21 12:17:58,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:17:58,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:17:58,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723369889] [2020-09-21 12:17:58,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:17:58,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:17:58,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:17:58,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:17:58,134 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 4 states. [2020-09-21 12:17:59,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:17:59,145 INFO L93 Difference]: Finished difference Result 276 states and 357 transitions. [2020-09-21 12:17:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:17:59,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-09-21 12:17:59,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:17:59,165 INFO L225 Difference]: With dead ends: 276 [2020-09-21 12:17:59,165 INFO L226 Difference]: Without dead ends: 153 [2020-09-21 12:17:59,171 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 [2020-09-21 12:17:59,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-21 12:17:59,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 124. [2020-09-21 12:17:59,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-09-21 12:17:59,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2020-09-21 12:17:59,275 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 59 [2020-09-21 12:17:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:17:59,276 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2020-09-21 12:17:59,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:17:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2020-09-21 12:17:59,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 12:17:59,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:17:59,287 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:17:59,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:17:59,287 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:17:59,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:17:59,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1851002156, now seen corresponding path program 1 times [2020-09-21 12:17:59,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:17:59,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038881113] [2020-09-21 12:17:59,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:17:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:17:59,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 12:18:00,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:00,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-21 12:18:00,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-21 12:18:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:18:00,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:00,728 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:00,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 12:18:00,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:00,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:00,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:00,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:00,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:00,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:00,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:00,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:00,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:00,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:00,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:00,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:00,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:00,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:00,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:18:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:00,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:00,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:00,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:00,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:00,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:00,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:00,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:00,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:18:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:00,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:00,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:00,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 12:18:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:00,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:00,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:00,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:00,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:18:00,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:00,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:18:00,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038881113] [2020-09-21 12:18:00,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:00,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:00,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795779241] [2020-09-21 12:18:00,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:00,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:00,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:00,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:00,971 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand 8 states. [2020-09-21 12:18:01,529 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:02,154 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:03,038 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:03,318 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:03,916 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:04,207 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:04,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:04,529 INFO L93 Difference]: Finished difference Result 316 states and 413 transitions. [2020-09-21 12:18:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:18:04,530 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-09-21 12:18:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:04,535 INFO L225 Difference]: With dead ends: 316 [2020-09-21 12:18:04,535 INFO L226 Difference]: Without dead ends: 220 [2020-09-21 12:18:04,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:18:04,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-21 12:18:04,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 187. [2020-09-21 12:18:04,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-21 12:18:04,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 228 transitions. [2020-09-21 12:18:04,596 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 228 transitions. Word has length 64 [2020-09-21 12:18:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:04,597 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 228 transitions. [2020-09-21 12:18:04,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:04,597 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 228 transitions. [2020-09-21 12:18:04,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 12:18:04,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:04,603 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:04,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:18:04,603 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:04,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:04,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1418290782, now seen corresponding path program 1 times [2020-09-21 12:18:04,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:04,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156603865] [2020-09-21 12:18:04,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:04,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 12:18:05,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:18:05,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:18:05,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-21 12:18:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,042 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:06,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:06,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 12:18:06,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:06,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:06,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:06,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:06,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:06,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:06,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:06,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:06,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:06,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:06,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:06,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:18:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:06,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:06,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:06,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:06,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:18:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:06,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-21 12:18:06,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:18:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:06,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:18:06,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:06,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:18:06,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:06,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:06,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:06,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:06,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:06,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 12:18:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:06,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:06,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:18:06,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:18:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:06,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:06,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:06,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:06,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:06,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:06,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:06,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:06,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156603865] [2020-09-21 12:18:06,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:06,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:06,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440454664] [2020-09-21 12:18:06,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:06,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:06,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:06,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:06,639 INFO L87 Difference]: Start difference. First operand 187 states and 228 transitions. Second operand 8 states. [2020-09-21 12:18:07,742 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:08,067 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:08,390 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:09,089 INFO L93 Difference]: Finished difference Result 412 states and 559 transitions. [2020-09-21 12:18:09,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:18:09,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-09-21 12:18:09,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:09,095 INFO L225 Difference]: With dead ends: 412 [2020-09-21 12:18:09,095 INFO L226 Difference]: Without dead ends: 253 [2020-09-21 12:18:09,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:09,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-21 12:18:09,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 197. [2020-09-21 12:18:09,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-21 12:18:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 241 transitions. [2020-09-21 12:18:09,146 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 241 transitions. Word has length 87 [2020-09-21 12:18:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:09,146 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 241 transitions. [2020-09-21 12:18:09,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:09,147 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 241 transitions. [2020-09-21 12:18:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 12:18:09,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:09,148 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:09,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:18:09,149 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:09,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:09,149 INFO L82 PathProgramCache]: Analyzing trace with hash -32087388, now seen corresponding path program 1 times [2020-09-21 12:18:09,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:09,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044751729] [2020-09-21 12:18:09,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:09,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 12:18:10,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-09-21 12:18:10,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:18:10,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:10,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 12:18:10,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:10,619 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:10,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:10,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-21 12:18:10,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:18:10,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:10,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:10,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:10,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:10,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:10,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:10,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:10,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:10,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:10,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:10,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:10,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:10,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:10,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:10,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:10,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:10,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:10,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:10,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:10,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:10,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:10,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:10,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:10,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:18:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:10,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:10,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:10,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:10,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:10,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:10,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:10,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:10,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:10,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:18:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:10,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:10,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:10,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:10,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:10,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:18:10,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:18:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:18:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:11,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:11,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:11,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:11,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:11,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:18:11,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:18:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:11,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:11,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:11,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:11,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:11,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:11,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:11,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:11,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:11,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:11,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:11,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:11,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:11,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:11,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:18:11,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:11,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:11,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:11,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:11,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:11,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 12:18:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:11,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:11,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:11,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:11,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:11,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:11,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:11,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:11,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:18:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:11,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:11,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:11,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:11,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:11,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:11,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:11,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044751729] [2020-09-21 12:18:11,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:11,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:18:11,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721088796] [2020-09-21 12:18:11,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:18:11,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:11,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:18:11,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:18:11,108 INFO L87 Difference]: Start difference. First operand 197 states and 241 transitions. Second operand 7 states. [2020-09-21 12:18:11,597 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:12,311 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:15,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:15,093 INFO L93 Difference]: Finished difference Result 742 states and 1065 transitions. [2020-09-21 12:18:15,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:18:15,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-21 12:18:15,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:15,102 INFO L225 Difference]: With dead ends: 742 [2020-09-21 12:18:15,103 INFO L226 Difference]: Without dead ends: 573 [2020-09-21 12:18:15,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:18:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-09-21 12:18:15,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 489. [2020-09-21 12:18:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-09-21 12:18:15,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 645 transitions. [2020-09-21 12:18:15,242 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 645 transitions. Word has length 87 [2020-09-21 12:18:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:15,243 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 645 transitions. [2020-09-21 12:18:15,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:18:15,243 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 645 transitions. [2020-09-21 12:18:15,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 12:18:15,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:15,245 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:15,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:18:15,246 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:15,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:15,246 INFO L82 PathProgramCache]: Analyzing trace with hash 765386145, now seen corresponding path program 1 times [2020-09-21 12:18:15,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:15,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671463108] [2020-09-21 12:18:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 12:18:15,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-09-21 12:18:15,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-09-21 12:18:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:18:15,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,210 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:16,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:16,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:18:16,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:16,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:16,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:16,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:16,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:16,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:16,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:16,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:16,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:16,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:16,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:16,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:16,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:16,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:16,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:18:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:16,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:16,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:16,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:16,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:16,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:18:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:16,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:18:16,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:18:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:18:16,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:16,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:18:16,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:18:16,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:16,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:16,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:16,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:16,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:16,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:16,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 12:18:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:16,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:16,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:18:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:16,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:16,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:16,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:16,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:16,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:16,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:16,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:16,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671463108] [2020-09-21 12:18:16,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:16,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:18:16,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172941802] [2020-09-21 12:18:16,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:18:16,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:16,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:18:16,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:18:16,609 INFO L87 Difference]: Start difference. First operand 489 states and 645 transitions. Second operand 9 states. [2020-09-21 12:18:17,921 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:18,279 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:18:18,609 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:18,913 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:19,601 INFO L93 Difference]: Finished difference Result 1036 states and 1432 transitions. [2020-09-21 12:18:19,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:18:19,613 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-09-21 12:18:19,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:19,620 INFO L225 Difference]: With dead ends: 1036 [2020-09-21 12:18:19,620 INFO L226 Difference]: Without dead ends: 575 [2020-09-21 12:18:19,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:18:19,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-09-21 12:18:19,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 499. [2020-09-21 12:18:19,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-09-21 12:18:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 655 transitions. [2020-09-21 12:18:19,727 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 655 transitions. Word has length 87 [2020-09-21 12:18:19,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:19,728 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 655 transitions. [2020-09-21 12:18:19,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:18:19,728 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 655 transitions. [2020-09-21 12:18:19,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 12:18:19,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:19,731 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:19,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:18:19,731 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:19,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:19,731 INFO L82 PathProgramCache]: Analyzing trace with hash -2143377757, now seen corresponding path program 1 times [2020-09-21 12:18:19,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:19,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466280710] [2020-09-21 12:18:19,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 12:18:20,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-09-21 12:18:20,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-21 12:18:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:20,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:20,667 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:20,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:20,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:18:20,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:20,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:20,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:20,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:20,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:20,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:20,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:20,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:20,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:20,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:20,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:18:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:20,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:20,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:20,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:20,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:18:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:20,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 12:18:20,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:18:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:20,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:18:20,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:18:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:20,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:20,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:20,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:20,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:20,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:20,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:20,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:20,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:20,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:20,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 12:18:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:20,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:20,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:18:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:20,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:20,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:20,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:20,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:20,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:20,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466280710] [2020-09-21 12:18:20,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:20,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:20,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279327552] [2020-09-21 12:18:20,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:20,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:20,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:20,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:20,947 INFO L87 Difference]: Start difference. First operand 499 states and 655 transitions. Second operand 8 states. [2020-09-21 12:18:22,070 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:22,418 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:22,761 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:23,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:23,425 INFO L93 Difference]: Finished difference Result 940 states and 1283 transitions. [2020-09-21 12:18:23,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:18:23,426 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-09-21 12:18:23,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:23,430 INFO L225 Difference]: With dead ends: 940 [2020-09-21 12:18:23,430 INFO L226 Difference]: Without dead ends: 459 [2020-09-21 12:18:23,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:23,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-09-21 12:18:23,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 404. [2020-09-21 12:18:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-09-21 12:18:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 507 transitions. [2020-09-21 12:18:23,508 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 507 transitions. Word has length 87 [2020-09-21 12:18:23,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:23,509 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 507 transitions. [2020-09-21 12:18:23,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:23,509 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 507 transitions. [2020-09-21 12:18:23,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-21 12:18:23,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:23,511 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:23,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:18:23,511 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:23,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:23,512 INFO L82 PathProgramCache]: Analyzing trace with hash 858193610, now seen corresponding path program 1 times [2020-09-21 12:18:23,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:23,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101077870] [2020-09-21 12:18:23,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:23,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:24,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:24,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 12:18:24,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:24,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-21 12:18:24,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:24,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:18:24,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 12:18:24,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-21 12:18:24,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:24,884 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:24,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:24,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:24,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:24,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:24,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:24,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:18:24,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:24,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:24,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:24,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:24,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:24,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:24,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:24,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:24,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:24,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:24,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:24,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:24,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:24,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:24,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:24,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:24,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:24,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:24,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:24,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:24,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:24,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:24,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:24,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:24,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:24,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:24,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:24,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:24,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:24,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:24,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:24,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:24,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:24,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:24,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:24,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:24,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:24,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:24,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:25,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:25,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:18:25,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:18:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:25,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:25,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:25,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:18:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:25,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 12:18:25,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:18:25,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:25,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:25,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:25,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:18:25,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:25,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:25,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:25,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:25,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:25,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:25,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:18:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:25,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:25,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:25,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:25,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 12:18:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:25,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:25,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101077870] [2020-09-21 12:18:25,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:25,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 12:18:25,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451872486] [2020-09-21 12:18:25,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:18:25,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:25,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:18:25,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:25,217 INFO L87 Difference]: Start difference. First operand 404 states and 507 transitions. Second operand 12 states. [2020-09-21 12:18:25,736 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:26,712 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:27,068 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:27,363 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:28,199 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:28,596 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:28,925 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:30,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:30,238 INFO L93 Difference]: Finished difference Result 872 states and 1231 transitions. [2020-09-21 12:18:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 12:18:30,239 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2020-09-21 12:18:30,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:30,248 INFO L225 Difference]: With dead ends: 872 [2020-09-21 12:18:30,248 INFO L226 Difference]: Without dead ends: 566 [2020-09-21 12:18:30,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=235, Invalid=577, Unknown=0, NotChecked=0, Total=812 [2020-09-21 12:18:30,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-09-21 12:18:30,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 464. [2020-09-21 12:18:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-09-21 12:18:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 601 transitions. [2020-09-21 12:18:30,386 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 601 transitions. Word has length 91 [2020-09-21 12:18:30,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:30,387 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 601 transitions. [2020-09-21 12:18:30,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 12:18:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 601 transitions. [2020-09-21 12:18:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-21 12:18:30,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:30,395 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:30,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:18:30,395 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:30,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:30,396 INFO L82 PathProgramCache]: Analyzing trace with hash 260114312, now seen corresponding path program 1 times [2020-09-21 12:18:30,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:30,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671676090] [2020-09-21 12:18:30,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:30,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:30,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:31,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:31,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-21 12:18:31,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:31,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-21 12:18:31,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:31,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:31,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-21 12:18:31,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 12:18:31,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:31,776 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:31,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:31,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:31,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:31,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:31,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 12:18:31,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:31,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:31,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:31,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:31,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:31,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:31,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:31,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:31,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:31,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:31,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:31,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:31,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:31,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:31,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:31,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:31,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:31,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:31,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:31,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:31,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:31,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:31,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:31,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:31,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:31,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:31,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:31,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:31,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:31,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:31,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:31,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:31,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:31,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:31,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:31,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:31,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:31,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:31,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:31,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:31,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:31,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:31,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:31,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:31,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:18:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-21 12:18:32,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:18:32,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:32,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:18:32,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:32,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:32,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:18:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:32,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:18:32,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:32,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:18:32,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:32,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:32,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:32,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:32,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:18:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:18:32,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:18:32,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:18:32,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 12:18:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:32,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:32,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:32,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:32,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:32,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-21 12:18:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:32,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:32,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-21 12:18:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:32,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 12:18:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 12:18:32,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671676090] [2020-09-21 12:18:32,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:18:32,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:18:32,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579037725] [2020-09-21 12:18:32,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:32,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:32,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:32,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:32,191 INFO L87 Difference]: Start difference. First operand 464 states and 601 transitions. Second operand 8 states. [2020-09-21 12:18:32,563 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:34,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:34,067 INFO L93 Difference]: Finished difference Result 1176 states and 1626 transitions. [2020-09-21 12:18:34,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:18:34,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2020-09-21 12:18:34,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:34,074 INFO L225 Difference]: With dead ends: 1176 [2020-09-21 12:18:34,074 INFO L226 Difference]: Without dead ends: 740 [2020-09-21 12:18:34,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-21 12:18:34,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-09-21 12:18:34,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 617. [2020-09-21 12:18:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-09-21 12:18:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 799 transitions. [2020-09-21 12:18:34,224 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 799 transitions. Word has length 126 [2020-09-21 12:18:34,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:34,225 INFO L479 AbstractCegarLoop]: Abstraction has 617 states and 799 transitions. [2020-09-21 12:18:34,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:34,225 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 799 transitions. [2020-09-21 12:18:34,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-21 12:18:34,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:34,232 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:34,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:18:34,233 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:34,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:34,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1982462296, now seen corresponding path program 1 times [2020-09-21 12:18:34,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:34,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503397316] [2020-09-21 12:18:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-21 12:18:35,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:18:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-21 12:18:35,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-21 12:18:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 12:18:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,614 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:35,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:35,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:18:35,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:35,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:35,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:35,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:35,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:35,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:35,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:35,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:35,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:35,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:35,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:35,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:35,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:18:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:35,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:35,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:35,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 12:18:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-21 12:18:35,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-21 12:18:35,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:18:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 12:18:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:35,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:35,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:35,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:35,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:35,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:35,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:35,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:35,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:35,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:18:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:35,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:35,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:35,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:35,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:18:35,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:18:35,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:36,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:36,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:36,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:36,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:36,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:36,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:36,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:36,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:18:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:18:36,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:36,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:18:36,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:36,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:36,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 12:18:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:36,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:36,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:36,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:36,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-21 12:18:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:36,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:36,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 12:18:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:36,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:36,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:36,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:36,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:36,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:36,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-21 12:18:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:36,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:36,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:36,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-21 12:18:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:36,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:36,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:36,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:36,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:36,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:36,165 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-21 12:18:36,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503397316] [2020-09-21 12:18:36,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:36,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 12:18:36,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28147664] [2020-09-21 12:18:36,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:18:36,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:36,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:18:36,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:18:36,168 INFO L87 Difference]: Start difference. First operand 617 states and 799 transitions. Second operand 10 states. [2020-09-21 12:18:36,596 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:37,425 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:39,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:39,425 INFO L93 Difference]: Finished difference Result 1326 states and 1769 transitions. [2020-09-21 12:18:39,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 12:18:39,426 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2020-09-21 12:18:39,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:39,431 INFO L225 Difference]: With dead ends: 1326 [2020-09-21 12:18:39,431 INFO L226 Difference]: Without dead ends: 467 [2020-09-21 12:18:39,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2020-09-21 12:18:39,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-21 12:18:39,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 378. [2020-09-21 12:18:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-09-21 12:18:39,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 484 transitions. [2020-09-21 12:18:39,498 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 484 transitions. Word has length 140 [2020-09-21 12:18:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:39,499 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 484 transitions. [2020-09-21 12:18:39,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:18:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 484 transitions. [2020-09-21 12:18:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-21 12:18:39,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:39,501 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:39,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:18:39,502 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:39,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:39,502 INFO L82 PathProgramCache]: Analyzing trace with hash 58981740, now seen corresponding path program 1 times [2020-09-21 12:18:39,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:39,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122441145] [2020-09-21 12:18:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:39,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:39,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:40,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-21 12:18:40,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:18:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-21 12:18:40,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-21 12:18:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 12:18:40,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:40,829 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:40,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:40,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:40,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:40,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 12:18:40,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:40,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:40,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:40,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:40,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:40,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:40,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:40,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:40,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:40,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:40,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:40,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:40,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:40,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:40,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:40,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:40,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:40,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:40,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:40,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:40,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:40,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:40,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:40,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:40,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:40,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:40,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:40,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:40,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:40,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:40,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:40,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:40,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:40,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:40,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:40,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:40,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:40,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:40,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:40,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:40,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:40,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:40,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:40,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:40,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:40,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:40,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:18:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-21 12:18:41,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-21 12:18:41,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 12:18:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:41,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:41,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:41,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:18:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:41,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:41,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:41,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:41,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:41,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:41,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:41,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:18:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:18:41,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:41,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:41,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 12:18:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:41,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:41,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 12:18:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:41,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:41,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:18:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:41,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:41,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:41,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:41,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 12:18:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:41,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-21 12:18:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:41,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:41,359 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-21 12:18:41,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122441145] [2020-09-21 12:18:41,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:41,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:41,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909638997] [2020-09-21 12:18:41,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:41,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:41,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:41,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:41,363 INFO L87 Difference]: Start difference. First operand 378 states and 484 transitions. Second operand 8 states. [2020-09-21 12:18:42,036 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190