/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:52:11,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:52:11,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:52:11,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:52:11,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:52:11,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:52:11,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:52:11,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:52:11,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:52:11,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:52:11,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:52:11,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:52:11,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:52:11,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:52:11,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:52:11,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:52:11,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:52:11,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:52:11,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:52:11,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:52:11,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:52:11,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:52:11,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:52:11,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:52:11,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:52:11,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:52:11,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:52:11,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:52:11,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:52:11,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:52:11,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:52:11,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:52:11,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:52:11,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:52:11,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:52:11,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:52:11,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:52:11,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:52:11,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:52:11,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:52:11,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:52:11,485 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 09:52:11,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:52:11,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:52:11,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:52:11,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:52:11,535 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:52:11,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:52:11,535 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:52:11,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:52:11,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:52:11,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:52:11,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:52:11,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:52:11,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:52:11,538 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:52:11,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:52:11,538 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:52:11,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:52:11,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:52:11,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:52:11,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:52:11,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:52:11,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:52:11,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:52:11,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:52:11,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:52:11,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:52:11,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:52:11,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:52:11,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:52:11,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:52:12,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:52:12,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:52:12,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:52:12,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:52:12,042 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:52:12,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-25 09:52:12,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2314e2453/d7d5828871594cafb4a3b030158863f8/FLAG5d6c7ae86 [2020-09-25 09:52:12,706 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:52:12,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-25 09:52:12,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2314e2453/d7d5828871594cafb4a3b030158863f8/FLAG5d6c7ae86 [2020-09-25 09:52:12,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2314e2453/d7d5828871594cafb4a3b030158863f8 [2020-09-25 09:52:12,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:52:12,981 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:52:12,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:12,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:52:12,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:52:12,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:12" (1/1) ... [2020-09-25 09:52:12,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:12, skipping insertion in model container [2020-09-25 09:52:12,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:12" (1/1) ... [2020-09-25 09:52:13,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:52:13,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:52:13,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:13,590 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:52:13,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:13,745 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:52:13,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13 WrapperNode [2020-09-25 09:52:13,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:13,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:52:13,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:52:13,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:52:13,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (1/1) ... [2020-09-25 09:52:13,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (1/1) ... [2020-09-25 09:52:13,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (1/1) ... [2020-09-25 09:52:13,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (1/1) ... [2020-09-25 09:52:13,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (1/1) ... [2020-09-25 09:52:13,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (1/1) ... [2020-09-25 09:52:13,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (1/1) ... [2020-09-25 09:52:13,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:52:13,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:52:13,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:52:13,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:52:13,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (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 09:52:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:52:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:52:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:52:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:52:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:52:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:52:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:52:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:52:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:52:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:52:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:52:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:52:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:52:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:52:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:52:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:52:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:52:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:52:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:52:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:52:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:52:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:52:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:52:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:52:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:52:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:52:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:52:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:52:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:52:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:52:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:52:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:52:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:52:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:52:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:52:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:52:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:52:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:52:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:52:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:52:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:52:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:52:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:52:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:52:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:52:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:52:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:52:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:52:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:52:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:52:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:52:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:52:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:52:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:52:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:52:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:52:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:52:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:52:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:52:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:52:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:52:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:52:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:52:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:52:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:52:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:52:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:52:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:52:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:52:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:52:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:52:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:52:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:52:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:52:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:52:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:52:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:52:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:52:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:52:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:52:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:52:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:52:15,236 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:52:15,236 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:52:15,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:15 BoogieIcfgContainer [2020-09-25 09:52:15,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:52:15,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:52:15,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:52:15,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:52:15,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:52:12" (1/3) ... [2020-09-25 09:52:15,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b457a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:15, skipping insertion in model container [2020-09-25 09:52:15,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:13" (2/3) ... [2020-09-25 09:52:15,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b457a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:15, skipping insertion in model container [2020-09-25 09:52:15,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:15" (3/3) ... [2020-09-25 09:52:15,257 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-09-25 09:52:15,268 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:52:15,279 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:52:15,301 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:52:15,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:52:15,330 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:52:15,330 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:52:15,331 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:52:15,331 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:52:15,331 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:52:15,331 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:52:15,331 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:52:15,360 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-25 09:52:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:52:15,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:15,380 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 09:52:15,380 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:15,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:15,389 INFO L82 PathProgramCache]: Analyzing trace with hash 391863934, now seen corresponding path program 1 times [2020-09-25 09:52:15,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:15,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661383169] [2020-09-25 09:52:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:16,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:17,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:18,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:20,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:20,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:52:20,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 09:52:20,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:20,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:52:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:52:20,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:52:20,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:52:21,466 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:21,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:21,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-25 09:52:21,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:52:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:21,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:22,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:52:22,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:22,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 33 [2020-09-25 09:52:22,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:22,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:22,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:22,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:22,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:52:22,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:22,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:22,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:52:22,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:22,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:52:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:22,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:52:22,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:22,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:22,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:52:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:22,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:22,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:22,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:22,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,185 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 09:52:22,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661383169] [2020-09-25 09:52:22,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:22,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:52:22,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288692516] [2020-09-25 09:52:22,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:52:22,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:22,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:52:22,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:52:22,224 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 8 states. [2020-09-25 09:52:22,958 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:23,996 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:24,381 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:24,822 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:25,210 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:25,509 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:25,894 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:26,207 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:28,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:28,213 INFO L93 Difference]: Finished difference Result 586 states and 736 transitions. [2020-09-25 09:52:28,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:52:28,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:52:28,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:28,239 INFO L225 Difference]: With dead ends: 586 [2020-09-25 09:52:28,239 INFO L226 Difference]: Without dead ends: 406 [2020-09-25 09:52:28,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:52:28,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-09-25 09:52:28,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 363. [2020-09-25 09:52:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-25 09:52:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 417 transitions. [2020-09-25 09:52:28,393 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 417 transitions. Word has length 142 [2020-09-25 09:52:28,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:28,394 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 417 transitions. [2020-09-25 09:52:28,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:52:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 417 transitions. [2020-09-25 09:52:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:52:28,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:28,404 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] [2020-09-25 09:52:28,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:52:28,405 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:28,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1263964468, now seen corresponding path program 1 times [2020-09-25 09:52:28,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:28,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520021866] [2020-09-25 09:52:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:28,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:28,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:29,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:33,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:33,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:33,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:52:33,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:33,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 09:52:33,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:33,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:33,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:52:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:52:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 09:52:33,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:33,837 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:33,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:33,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:34,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:34,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 09:52:34,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:34,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:52:34,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:34,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:34,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:34,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:34,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:34,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:34,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:34,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:34,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:34,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:34,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:34,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:34,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:34,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:34,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:34,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:34,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:34,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:34,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:34,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:34,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:34,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:52:34,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:34,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:34,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:34,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:34,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:34,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:34,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:34,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:34,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:34,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:34,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:34,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:34,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:34,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:52:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:34,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:34,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:34,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:34,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:52:34,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:34,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:34,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:34,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:52:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:34,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:34,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:34,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:34,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:34,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:34,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:34,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:52:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:34,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:34,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:34,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:34,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:52:34,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:34,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:34,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:34,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:34,393 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 09:52:34,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520021866] [2020-09-25 09:52:34,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:34,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:52:34,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265718111] [2020-09-25 09:52:34,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:52:34,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:34,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:52:34,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:52:34,402 INFO L87 Difference]: Start difference. First operand 363 states and 417 transitions. Second operand 9 states. [2020-09-25 09:52:34,891 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:36,460 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:36,754 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:37,103 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:37,515 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:37,854 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:38,160 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:38,479 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:52:38,787 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:39,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:39,869 INFO L93 Difference]: Finished difference Result 895 states and 1203 transitions. [2020-09-25 09:52:39,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 09:52:39,870 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 09:52:39,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:39,879 INFO L225 Difference]: With dead ends: 895 [2020-09-25 09:52:39,880 INFO L226 Difference]: Without dead ends: 642 [2020-09-25 09:52:39,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:52:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-09-25 09:52:39,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 524. [2020-09-25 09:52:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-09-25 09:52:39,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 647 transitions. [2020-09-25 09:52:39,986 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 647 transitions. Word has length 148 [2020-09-25 09:52:39,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:39,987 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 647 transitions. [2020-09-25 09:52:39,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:52:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 647 transitions. [2020-09-25 09:52:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-25 09:52:39,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:39,992 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:52:39,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:52:39,992 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:39,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:39,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1369222225, now seen corresponding path program 1 times [2020-09-25 09:52:39,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:39,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910902588] [2020-09-25 09:52:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:40,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-25 09:52:45,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:52:45,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 09:52:45,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 09:52:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 09:52:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,365 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:45,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:45,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:45,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 09:52:45,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:45,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:45,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:45,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:45,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:45,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:52:45,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:45,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:45,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:45,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:45,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:45,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:45,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:45,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:45,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:45,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:45,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:45,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:45,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:45,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:45,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:45,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:52:45,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:45,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 09:52:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:52:45,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:45,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:52:45,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 09:52:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 09:52:45,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:52:45,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 09:52:45,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 09:52:45,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:52:45,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:52:45,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 09:52:45,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:52:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:52:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:52:45,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:45,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:45,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:45,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:52:45,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:45,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 09:52:45,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:45,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:52:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:46,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:52:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:46,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:46,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:46,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:52:46,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:46,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:52:46,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:46,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:46,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:52:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:46,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:46,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:46,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:52:46,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:46,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:46,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:46,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 09:52:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:46,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 09:52:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:46,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:46,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:46,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:52:46,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:46,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:52:46,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:46,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:46,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:46,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:46,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:46,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:46,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:46,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:46,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:46,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:46,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:46,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:46,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:46,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:46,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:46,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 09:52:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:46,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:46,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:46,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:46,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:46,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:46,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:46,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:52:46,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:46,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:46,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 09:52:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:46,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:46,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:46,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:46,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:46,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:46,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:46,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 09:52:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:46,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:46,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:46,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:46,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:46,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:46,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:46,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 09:52:46,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910902588] [2020-09-25 09:52:46,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:46,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 09:52:46,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158453918] [2020-09-25 09:52:46,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:52:46,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:46,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:52:46,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:52:46,155 INFO L87 Difference]: Start difference. First operand 524 states and 647 transitions. Second operand 13 states. [2020-09-25 09:52:46,900 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:47,998 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:48,313 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:48,608 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:52:48,911 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:49,227 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:49,515 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:50,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:50,713 INFO L93 Difference]: Finished difference Result 1222 states and 1656 transitions. [2020-09-25 09:52:50,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 09:52:50,714 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2020-09-25 09:52:50,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:50,727 INFO L225 Difference]: With dead ends: 1222 [2020-09-25 09:52:50,727 INFO L226 Difference]: Without dead ends: 808 [2020-09-25 09:52:50,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2020-09-25 09:52:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2020-09-25 09:52:50,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 506. [2020-09-25 09:52:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2020-09-25 09:52:50,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 584 transitions. [2020-09-25 09:52:50,836 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 584 transitions. Word has length 219 [2020-09-25 09:52:50,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:50,838 INFO L479 AbstractCegarLoop]: Abstraction has 506 states and 584 transitions. [2020-09-25 09:52:50,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:52:50,838 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 584 transitions. [2020-09-25 09:52:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 09:52:50,842 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:50,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:52:50,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:52:50,842 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:50,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:50,843 INFO L82 PathProgramCache]: Analyzing trace with hash -685464906, now seen corresponding path program 1 times [2020-09-25 09:52:50,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:50,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834112397] [2020-09-25 09:52:50,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:51,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:52,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:52,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 09:52:52,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:52:52,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1693 [2020-09-25 09:52:52,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:52,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:52,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:52,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-09-25 09:52:52,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:52:52,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:52,934 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:52,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:52,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:53,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 09:52:53,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:53,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:53,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:53,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:52:53,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:53,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:53,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:53,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:52:53,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:53,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 09:52:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:52:53,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:53,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:53,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 09:52:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 09:52:53,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:52:53,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 09:52:53,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:53,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:52:53,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:52:53,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:52:53,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 09:52:53,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:52:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:52:53,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:52:53,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 09:52:53,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:52:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:52:53,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:52:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:52:53,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:53,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:52:53,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:53,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:52:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:52:53,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:53,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 09:52:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 09:52:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:52:53,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:52:53,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 09:52:53,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:53,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:53,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 09:52:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:52:53,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:53,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:52:53,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-25 09:52:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:53,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:53,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:53,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-25 09:52:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:53,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:53,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-25 09:52:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:53,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:53,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:53,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:53,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:53,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:53,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:53,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:53,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:53,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 09:52:53,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834112397] [2020-09-25 09:52:53,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:52:53,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 09:52:53,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600847444] [2020-09-25 09:52:53,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 09:52:53,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:53,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 09:52:53,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:52:53,763 INFO L87 Difference]: Start difference. First operand 506 states and 584 transitions. Second operand 12 states. [2020-09-25 09:52:54,384 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:55,466 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:55,793 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:56,143 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:56,501 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:56,779 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:57,071 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:57,365 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:57,705 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:58,041 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:58,321 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:53:00,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:00,714 INFO L93 Difference]: Finished difference Result 1659 states and 2198 transitions. [2020-09-25 09:53:00,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 09:53:00,715 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 232 [2020-09-25 09:53:00,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:00,725 INFO L225 Difference]: With dead ends: 1659 [2020-09-25 09:53:00,726 INFO L226 Difference]: Without dead ends: 1263 [2020-09-25 09:53:00,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=289, Invalid=767, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 09:53:00,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2020-09-25 09:53:00,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 841. [2020-09-25 09:53:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2020-09-25 09:53:00,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 978 transitions. [2020-09-25 09:53:00,861 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 978 transitions. Word has length 232 [2020-09-25 09:53:00,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:00,861 INFO L479 AbstractCegarLoop]: Abstraction has 841 states and 978 transitions. [2020-09-25 09:53:00,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 09:53:00,862 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 978 transitions. [2020-09-25 09:53:00,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-25 09:53:00,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:00,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:53:00,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:53:00,867 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:00,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:00,868 INFO L82 PathProgramCache]: Analyzing trace with hash 850397448, now seen corresponding path program 1 times [2020-09-25 09:53:00,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:00,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692824928] [2020-09-25 09:53:00,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:00,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking...