/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:09:52,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:09:52,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:09:52,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:09:52,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:09:52,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:09:52,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:09:52,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:09:52,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:09:52,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:09:52,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:09:52,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:09:52,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:09:52,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:09:52,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:09:52,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:09:52,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:09:52,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:09:52,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:09:52,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:09:52,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:09:52,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:09:52,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:09:52,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:09:52,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:09:52,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:09:52,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:09:52,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:09:52,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:09:52,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:09:52,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:09:52,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:09:52,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:09:52,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:09:52,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:09:52,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:09:52,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:09:52,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:09:52,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:09:52,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:09:52,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:09:52,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:09:52,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:09:52,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:09:52,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:09:52,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:09:52,389 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:09:52,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:09:52,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:09:52,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:09:52,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:09:52,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:09:52,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:09:52,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:09:52,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:09:52,390 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:09:52,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:09:52,391 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:09:52,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:09:52,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:09:52,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:09:52,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:09:52,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:09:52,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:09:52,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:09:52,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:09:52,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:09:52,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:09:52,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:09:52,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:09:52,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:09:52,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:09:52,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:09:52,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:09:52,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:09:52,958 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:09:52,960 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:09:52,961 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-25 04:09:53,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c9ba67cb/360452fbf1e543599f1166180c98507d/FLAG1936e7b3f [2020-09-25 04:09:53,669 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:09:53,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-25 04:09:53,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c9ba67cb/360452fbf1e543599f1166180c98507d/FLAG1936e7b3f [2020-09-25 04:09:53,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c9ba67cb/360452fbf1e543599f1166180c98507d [2020-09-25 04:09:53,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:09:53,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:09:53,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:09:53,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:09:53,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:09:54,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:09:53" (1/1) ... [2020-09-25 04:09:54,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c71f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54, skipping insertion in model container [2020-09-25 04:09:54,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:09:53" (1/1) ... [2020-09-25 04:09:54,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:09:54,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:09:54,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:09:54,582 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:09:54,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:09:54,770 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:09:54,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54 WrapperNode [2020-09-25 04:09:54,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:09:54,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:09:54,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:09:54,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:09:54,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (1/1) ... [2020-09-25 04:09:54,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (1/1) ... [2020-09-25 04:09:54,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (1/1) ... [2020-09-25 04:09:54,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (1/1) ... [2020-09-25 04:09:54,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (1/1) ... [2020-09-25 04:09:54,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (1/1) ... [2020-09-25 04:09:54,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (1/1) ... [2020-09-25 04:09:54,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:09:54,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:09:54,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:09:54,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:09:54,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (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 [2020-09-25 04:09:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:09:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:09:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:09:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:09:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:09:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:09:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:09:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:09:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:09:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:09:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:09:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:09:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:09:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:09:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:09:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:09:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:09:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:09:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:09:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:09:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:09:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:09:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:09:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:09:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:09:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:09:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:09:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:09:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:09:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:09:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:09:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:09:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:09:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:09:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:09:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:09:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 04:09:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:09:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:09:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:09:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:09:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:09:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:09:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:09:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:09:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:09:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:09:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:09:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:09:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:09:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:09:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:09:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:09:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:09:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:09:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:09:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:09:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:09:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:09:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:09:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:09:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:09:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:09:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:09:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:09:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:09:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:09:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:09:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:09:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:09:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:09:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:09:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:09:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:09:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:09:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:09:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:09:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:09:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:09:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 04:09:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:09:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:09:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:09:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:09:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:09:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:09:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:09:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:09:56,239 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:09:56,240 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:09:56,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:09:56 BoogieIcfgContainer [2020-09-25 04:09:56,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:09:56,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:09:56,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:09:56,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:09:56,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:09:53" (1/3) ... [2020-09-25 04:09:56,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54750407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:09:56, skipping insertion in model container [2020-09-25 04:09:56,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:09:54" (2/3) ... [2020-09-25 04:09:56,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54750407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:09:56, skipping insertion in model container [2020-09-25 04:09:56,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:09:56" (3/3) ... [2020-09-25 04:09:56,257 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-09-25 04:09:56,270 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:09:56,282 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:09:56,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:09:56,341 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:09:56,342 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:09:56,342 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:09:56,342 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:09:56,342 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:09:56,342 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:09:56,342 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:09:56,343 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:09:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2020-09-25 04:09:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:09:56,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:09:56,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:09:56,393 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:09:56,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:09:56,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1598852952, now seen corresponding path program 1 times [2020-09-25 04:09:56,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:09:56,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938640598] [2020-09-25 04:09:56,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:09:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:09:56,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:09:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:09:57,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:09:59,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:09:59,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:01,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:01,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:10:01,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:10:01,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:10:01,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:01,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:01,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:10:01,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:01,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:10:02,214 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:02,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:02,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:02,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:02,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:02,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:02,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 04:10:02,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:02,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:02,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:02,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:02,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:02,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:02,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:02,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:02,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:02,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:02,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:02,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:02,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:02,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:02,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:02,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:02,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:02,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:02,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:02,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:02,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:02,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:02,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:02,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:02,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:02,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:02,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:02,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:02,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:02,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:02,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:02,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:02,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:02,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:02,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:02,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:02,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:02,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:02,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:10:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:02,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:02,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:02,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:02,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:02,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:02,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:02,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:02,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:02,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:02,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:10:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:02,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:02,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:02,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:02,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:02,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:02,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:02,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:02,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:02,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:02,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:02,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:02,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938640598] [2020-09-25 04:10:02,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:02,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:10:02,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757854871] [2020-09-25 04:10:02,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:10:02,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:02,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:10:02,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:10:02,656 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 3 states. [2020-09-25 04:10:03,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:03,980 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2020-09-25 04:10:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:10:03,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:10:03,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:04,003 INFO L225 Difference]: With dead ends: 419 [2020-09-25 04:10:04,003 INFO L226 Difference]: Without dead ends: 266 [2020-09-25 04:10:04,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:10:04,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-25 04:10:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-09-25 04:10:04,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 04:10:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 245 transitions. [2020-09-25 04:10:04,115 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 245 transitions. Word has length 142 [2020-09-25 04:10:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:04,116 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 245 transitions. [2020-09-25 04:10:04,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:10:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 245 transitions. [2020-09-25 04:10:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:10:04,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:04,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:04,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:10:04,122 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:04,123 INFO L82 PathProgramCache]: Analyzing trace with hash -469194886, now seen corresponding path program 1 times [2020-09-25 04:10:04,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:04,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922267816] [2020-09-25 04:10:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:04,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:05,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:09,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:09,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:10:09,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:09,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 04:10:09,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:09,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 04:10:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 04:10:09,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:09,549 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:09,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:09,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:09,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:09,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:09,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:09,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 04:10:09,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:09,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:10:09,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:09,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:09,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:09,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:09,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:09,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:09,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:09,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:09,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:09,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:09,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:09,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:09,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:09,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:09,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:09,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:09,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:09,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:09,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:09,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:09,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:09,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:09,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:09,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:09,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:10:09,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:09,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:10:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:09,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:09,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:09,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:09,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:09,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:09,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:09,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:09,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:09,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:09,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:10:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:09,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:09,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:09,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:09,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:09,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:09,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:09,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:09,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:09,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:10:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:09,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:09,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:09,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:09,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:09,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:09,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:09,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:09,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922267816] [2020-09-25 04:10:10,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:10,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:10:10,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153454540] [2020-09-25 04:10:10,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:10:10,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:10,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:10:10,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:10:10,009 INFO L87 Difference]: Start difference. First operand 227 states and 245 transitions. Second operand 4 states. [2020-09-25 04:10:10,467 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:10:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:11,285 INFO L93 Difference]: Finished difference Result 383 states and 442 transitions. [2020-09-25 04:10:11,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:10:11,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:10:11,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:11,291 INFO L225 Difference]: With dead ends: 383 [2020-09-25 04:10:11,291 INFO L226 Difference]: Without dead ends: 266 [2020-09-25 04:10:11,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:10:11,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-25 04:10:11,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-09-25 04:10:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 04:10:11,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 244 transitions. [2020-09-25 04:10:11,335 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 244 transitions. Word has length 143 [2020-09-25 04:10:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:11,336 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 244 transitions. [2020-09-25 04:10:11,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:10:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 244 transitions. [2020-09-25 04:10:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 04:10:11,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:11,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:11,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:10:11,339 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:11,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1665045851, now seen corresponding path program 1 times [2020-09-25 04:10:11,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:11,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983846210] [2020-09-25 04:10:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:11,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:14,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:10:16,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 04:10:16,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:10:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:10:16,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,694 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:16,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:16,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 04:10:16,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:16,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:16,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:16,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:16,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:16,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:16,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:16,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:16,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:16,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 04:10:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:10:16,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:16,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:10:16,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:10:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:16,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:16,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:10:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:16,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:16,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:10:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:16,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:16,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:16,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:16,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:16,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:16,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:16,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:16,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:16,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:16,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:16,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983846210] [2020-09-25 04:10:16,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:16,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:10:16,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662492553] [2020-09-25 04:10:16,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:10:16,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:16,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:10:16,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:10:16,976 INFO L87 Difference]: Start difference. First operand 227 states and 244 transitions. Second operand 5 states. [2020-09-25 04:10:17,600 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:10:18,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:18,540 INFO L93 Difference]: Finished difference Result 360 states and 410 transitions. [2020-09-25 04:10:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:10:18,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-09-25 04:10:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:18,550 INFO L225 Difference]: With dead ends: 360 [2020-09-25 04:10:18,554 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 04:10:18,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:10:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 04:10:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 217. [2020-09-25 04:10:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-25 04:10:18,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 231 transitions. [2020-09-25 04:10:18,597 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 231 transitions. Word has length 151 [2020-09-25 04:10:18,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:18,598 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 231 transitions. [2020-09-25 04:10:18,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:10:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 231 transitions. [2020-09-25 04:10:18,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:10:18,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:18,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:18,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:10:18,601 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:18,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:18,601 INFO L82 PathProgramCache]: Analyzing trace with hash 705113863, now seen corresponding path program 1 times [2020-09-25 04:10:18,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:18,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762101151] [2020-09-25 04:10:18,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:18,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:18,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:19,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:21,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:22,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:23,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:23,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 04:10:23,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:10:23,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 04:10:23,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:23,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:10:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:10:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:10:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:23,995 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:23,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:24,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 04:10:24,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:10:24,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:24,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:24,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:24,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:24,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:24,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:24,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:24,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:24,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:24,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:24,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:24,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:24,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:24,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:24,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:24,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:24,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:24,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:10:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:10:24,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:10:24,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:10:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:10:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:10:24,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:24,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:10:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:24,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:10:24,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:24,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:24,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:24,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:24,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 04:10:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:24,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:10:24,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:24,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:24,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:10:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:24,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:24,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:24,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:24,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:24,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:10:24,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:24,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:24,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:24,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762101151] [2020-09-25 04:10:24,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:24,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:10:24,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721773400] [2020-09-25 04:10:24,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:10:24,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:24,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:10:24,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:10:24,485 INFO L87 Difference]: Start difference. First operand 217 states and 231 transitions. Second operand 7 states. [2020-09-25 04:10:25,219 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:10:26,677 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:10:27,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:27,222 INFO L93 Difference]: Finished difference Result 478 states and 544 transitions. [2020-09-25 04:10:27,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:10:27,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-25 04:10:27,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:27,226 INFO L225 Difference]: With dead ends: 478 [2020-09-25 04:10:27,226 INFO L226 Difference]: Without dead ends: 371 [2020-09-25 04:10:27,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:10:27,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-25 04:10:27,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 312. [2020-09-25 04:10:27,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-09-25 04:10:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 336 transitions. [2020-09-25 04:10:27,275 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 336 transitions. Word has length 160 [2020-09-25 04:10:27,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:27,276 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 336 transitions. [2020-09-25 04:10:27,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:10:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 336 transitions. [2020-09-25 04:10:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-25 04:10:27,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:27,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:27,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:10:27,280 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:27,280 INFO L82 PathProgramCache]: Analyzing trace with hash 392099313, now seen corresponding path program 1 times [2020-09-25 04:10:27,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:27,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347366972] [2020-09-25 04:10:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:27,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:28,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:28,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:28,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 04:10:32,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:32,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 04:10:32,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:10:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 04:10:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:10:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:32,712 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:32,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:32,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 04:10:32,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:32,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:32,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:32,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:32,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:32,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:32,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:32,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:32,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:32,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:32,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:32,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:32,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:32,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:32,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:32,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:32,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:32,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:32,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:32,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:32,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:10:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:10:32,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:10:32,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:10:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:32,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:10:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:10:32,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:10:32,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:32,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:10:32,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:32,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:10:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:10:32,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:32,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:32,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:32,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:32,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:10:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:32,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:32,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:32,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:32,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 04:10:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:32,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:32,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:10:32,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:32,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 04:10:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:32,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:32,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:32,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:32,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:32,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:32,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:32,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:32,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:10:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:10:32,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:33,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347366972] [2020-09-25 04:10:33,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:33,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:10:33,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233709974] [2020-09-25 04:10:33,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:10:33,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:33,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:10:33,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:10:33,034 INFO L87 Difference]: Start difference. First operand 312 states and 336 transitions. Second operand 9 states. [2020-09-25 04:10:33,618 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:10:35,276 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 04:10:35,576 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:10:36,230 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 04:10:36,572 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:10:36,893 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:10:37,223 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:10:37,532 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:10:37,851 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:10:38,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:38,499 INFO L93 Difference]: Finished difference Result 374 states and 418 transitions. [2020-09-25 04:10:38,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 04:10:38,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-25 04:10:38,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:38,504 INFO L225 Difference]: With dead ends: 374 [2020-09-25 04:10:38,504 INFO L226 Difference]: Without dead ends: 371 [2020-09-25 04:10:38,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-25 04:10:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-25 04:10:38,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 312. [2020-09-25 04:10:38,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-09-25 04:10:38,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 335 transitions. [2020-09-25 04:10:38,540 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 335 transitions. Word has length 184 [2020-09-25 04:10:38,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:38,540 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 335 transitions. [2020-09-25 04:10:38,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:10:38,541 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 335 transitions. [2020-09-25 04:10:38,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 04:10:38,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:38,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:38,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:10:38,543 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:38,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:38,543 INFO L82 PathProgramCache]: Analyzing trace with hash 612941210, now seen corresponding path program 1 times [2020-09-25 04:10:38,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:38,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952324556] [2020-09-25 04:10:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking...