/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:10:26,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:10:26,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:10:26,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:10:26,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:10:26,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:10:26,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:10:26,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:10:26,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:10:26,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:10:26,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:10:26,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:10:26,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:10:26,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:10:26,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:10:26,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:10:26,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:10:26,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:10:26,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:10:26,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:10:26,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:10:26,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:10:26,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:10:26,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:10:26,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:10:26,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:10:26,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:10:26,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:10:26,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:10:26,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:10:26,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:10:26,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:10:26,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:10:26,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:10:26,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:10:26,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:10:26,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:10:26,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:10:26,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:10:26,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:10:26,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:10:26,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:10:26,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:10:26,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:10:26,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:10:26,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:10:26,653 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:10:26,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:10:26,654 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:10:26,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:10:26,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:10:26,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:10:26,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:10:26,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:10:26,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:10:26,656 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:10:26,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:10:26,656 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:10:26,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:10:26,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:10:26,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:10:26,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:10:26,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:10:26,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:10:26,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:10:26,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:10:26,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:10:26,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:10:26,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:10:26,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:10:26,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:10:26,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:10:27,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:10:27,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:10:27,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:10:27,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:10:27,187 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:10:27,189 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-09-25 04:10:27,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e78864406/1741ebb9aa524b13b736bcaef7c622db/FLAG22150abed [2020-09-25 04:10:27,917 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:10:27,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-09-25 04:10:27,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e78864406/1741ebb9aa524b13b736bcaef7c622db/FLAG22150abed [2020-09-25 04:10:28,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e78864406/1741ebb9aa524b13b736bcaef7c622db [2020-09-25 04:10:28,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:10:28,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:10:28,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:10:28,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:10:28,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:10:28,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:28,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfafcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28, skipping insertion in model container [2020-09-25 04:10:28,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:28,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:10:28,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:10:28,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:10:28,809 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:10:28,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:10:28,923 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:10:28,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28 WrapperNode [2020-09-25 04:10:28,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:10:28,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:10:28,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:10:28,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:10:28,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:28,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:28,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:28,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:28,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:29,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:29,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (1/1) ... [2020-09-25 04:10:29,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:10:29,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:10:29,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:10:29,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:10:29,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:10:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:10:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:10:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:10:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:10:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:10:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:10:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:10:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:10:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:10:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:10:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 04:10:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:10:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:10:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:10:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:10:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:10:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:10:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:10:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:10:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:10:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:10:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:10:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:10:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:10:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:10:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:10:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:10:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:10:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:10:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:10:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:10:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:10:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:10:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:10:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:10:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:10:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:10:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:10:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:10:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:10:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:10:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:10:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:10:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:10:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:10:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:10:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:10:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:10:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:10:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:10:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:10:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 04:10:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:10:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:10:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:10:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:10:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:10:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:10:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:10:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:10:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:10:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:10:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:10:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:10:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:10:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:10:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:10:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:10:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:10:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:10:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:10:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:10:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:10:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:10:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:10:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:10:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:10:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:10:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:10:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:10:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:10:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:10:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:10:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:10:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:10:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:10:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:10:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:10:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:10:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:10:30,362 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:10:30,363 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:10:30,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:10:30 BoogieIcfgContainer [2020-09-25 04:10:30,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:10:30,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:10:30,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:10:30,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:10:30,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:10:28" (1/3) ... [2020-09-25 04:10:30,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1238d682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:10:30, skipping insertion in model container [2020-09-25 04:10:30,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:28" (2/3) ... [2020-09-25 04:10:30,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1238d682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:10:30, skipping insertion in model container [2020-09-25 04:10:30,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:10:30" (3/3) ... [2020-09-25 04:10:30,381 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-09-25 04:10:30,394 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:10:30,406 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:10:30,431 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:10:30,468 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:10:30,468 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:10:30,469 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:10:30,469 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:10:30,469 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:10:30,469 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:10:30,469 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:10:30,469 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:10:30,502 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-25 04:10:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:10:30,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:30,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:30,525 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:30,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:30,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1993009160, now seen corresponding path program 1 times [2020-09-25 04:10:30,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:30,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091495303] [2020-09-25 04:10:30,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:31,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:31,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:31,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:35,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:35,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:10:35,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:10:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 04:10:35,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:35,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:35,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:35,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:10:35,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:35,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 04:10:36,446 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:36,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:36,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:36,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:36,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:36,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 04:10:36,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:36,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:36,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:36,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:36,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:36,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:36,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:36,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:36,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:36,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:36,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:36,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:36,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:36,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:36,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:36,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:36,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:36,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:36,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:36,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:36,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:36,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:36,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:36,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:36,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:36,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:36,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:36,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:36,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:36,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:36,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:36,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:36,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:36,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:36,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:36,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:36,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:10:36,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:10:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:36,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:36,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:36,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:36,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:36,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:36,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:36,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:36,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:10:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:36,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:36,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:36,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:36,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:36,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:36,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:36,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091495303] [2020-09-25 04:10:36,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:36,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:10:36,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542052481] [2020-09-25 04:10:36,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:10:36,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:36,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:10:36,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:10:36,863 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 3 states. [2020-09-25 04:10:38,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:38,409 INFO L93 Difference]: Finished difference Result 465 states and 549 transitions. [2020-09-25 04:10:38,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:10:38,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:10:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:38,432 INFO L225 Difference]: With dead ends: 465 [2020-09-25 04:10:38,432 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 04:10:38,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:10:38,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 04:10:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249. [2020-09-25 04:10:38,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 04:10:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2020-09-25 04:10:38,613 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 142 [2020-09-25 04:10:38,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:38,619 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2020-09-25 04:10:38,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:10:38,619 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2020-09-25 04:10:38,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:10:38,631 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:38,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:38,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:10:38,632 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:38,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:38,633 INFO L82 PathProgramCache]: Analyzing trace with hash -534856304, now seen corresponding path program 1 times [2020-09-25 04:10:38,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:38,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358520178] [2020-09-25 04:10:38,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:38,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:38,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:43,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:43,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:10:43,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:43,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 04:10:43,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:43,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:43,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:43,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 04:10:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:10:43,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:43,992 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:43,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:44,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:44,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:44,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 04:10:44,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:44,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 04:10:44,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:44,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:44,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:44,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:44,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:44,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:44,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:44,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:44,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:44,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:44,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:44,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:44,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:44,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:10:44,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:44,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:44,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:44,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:44,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:44,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:44,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:44,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:10:44,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:44,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:10:44,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:44,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:44,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:44,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:44,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:44,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:44,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:44,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:44,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:44,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:10:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:44,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:44,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:44,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:44,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:44,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:44,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:44,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:44,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:44,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:44,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:10:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:44,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:44,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:44,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:44,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:44,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:44,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:44,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:44,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:44,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358520178] [2020-09-25 04:10:44,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:44,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:10:44,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550228600] [2020-09-25 04:10:44,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:10:44,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:44,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:10:44,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:10:44,420 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 4 states. [2020-09-25 04:10:45,021 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:10:45,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:45,899 INFO L93 Difference]: Finished difference Result 429 states and 490 transitions. [2020-09-25 04:10:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:10:45,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:10:45,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:45,904 INFO L225 Difference]: With dead ends: 429 [2020-09-25 04:10:45,904 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 04:10:45,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:10:45,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 04:10:45,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249. [2020-09-25 04:10:45,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 04:10:45,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-09-25 04:10:45,955 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 143 [2020-09-25 04:10:45,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:45,956 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-09-25 04:10:45,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:10:45,956 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-09-25 04:10:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 04:10:45,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:45,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:45,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:10:45,959 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:45,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:45,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1090071671, now seen corresponding path program 1 times [2020-09-25 04:10:45,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:45,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930284759] [2020-09-25 04:10:45,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:46,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:10:51,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:51,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 04:10:51,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:10:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:10:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,388 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:51,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:51,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 04:10:51,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:51,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:10:51,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:51,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:51,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:51,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:51,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:51,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:51,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:51,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:51,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:51,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 04:10:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:10:51,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:51,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:10:51,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:10:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:51,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:51,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:10:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:51,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:51,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:10:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:51,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:51,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:51,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:51,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:51,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:51,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:51,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:51,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930284759] [2020-09-25 04:10:51,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:51,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:10:51,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084106389] [2020-09-25 04:10:51,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:10:51,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:51,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:10:51,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:10:51,628 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 5 states. [2020-09-25 04:10:52,336 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:10:53,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:53,421 INFO L93 Difference]: Finished difference Result 406 states and 458 transitions. [2020-09-25 04:10:53,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:10:53,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-09-25 04:10:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:53,425 INFO L225 Difference]: With dead ends: 406 [2020-09-25 04:10:53,426 INFO L226 Difference]: Without dead ends: 297 [2020-09-25 04:10:53,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:10:53,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-09-25 04:10:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 239. [2020-09-25 04:10:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 04:10:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 254 transitions. [2020-09-25 04:10:53,460 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 254 transitions. Word has length 151 [2020-09-25 04:10:53,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:53,461 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 254 transitions. [2020-09-25 04:10:53,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:10:53,461 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 254 transitions. [2020-09-25 04:10:53,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:10:53,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:53,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:53,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:10:53,464 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:53,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:53,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1380723004, now seen corresponding path program 1 times [2020-09-25 04:10:53,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:53,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324970193] [2020-09-25 04:10:53,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:53,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:53,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:56,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:56,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:58,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:58,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 04:10:58,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:10:58,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:10:58,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:58,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:58,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:10:58,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:10:58,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:10:58,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:58,833 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:58,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:58,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:58,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:58,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:58,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:58,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:58,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:58,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:58,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:59,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:59,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:59,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:59,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:59,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:59,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:59,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:59,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:59,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:59,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:59,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:59,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:59,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:59,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:59,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:59,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:59,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:59,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:59,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:59,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:59,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:10:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:10:59,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:59,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:59,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:10:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:10:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:10:59,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:10:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:59,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:59,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:59,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:10:59,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:59,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 04:10:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:59,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:59,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:10:59,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:59,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:59,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:10:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:59,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:59,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:59,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:59,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324970193] [2020-09-25 04:10:59,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:59,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:10:59,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15110216] [2020-09-25 04:10:59,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:10:59,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:59,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:10:59,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:10:59,151 INFO L87 Difference]: Start difference. First operand 239 states and 254 transitions. Second operand 6 states. [2020-09-25 04:10:59,826 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:11:01,477 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:11:02,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:11:02,041 INFO L93 Difference]: Finished difference Result 524 states and 592 transitions. [2020-09-25 04:11:02,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:11:02,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 04:11:02,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:11:02,046 INFO L225 Difference]: With dead ends: 524 [2020-09-25 04:11:02,046 INFO L226 Difference]: Without dead ends: 395 [2020-09-25 04:11:02,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:11:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-25 04:11:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 336. [2020-09-25 04:11:02,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 04:11:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 361 transitions. [2020-09-25 04:11:02,099 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 361 transitions. Word has length 160 [2020-09-25 04:11:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:11:02,100 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 361 transitions. [2020-09-25 04:11:02,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:11:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 361 transitions. [2020-09-25 04:11:02,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-25 04:11:02,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:11:02,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:11:02,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:11:02,103 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:11:02,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:11:02,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1083295401, now seen corresponding path program 1 times [2020-09-25 04:11:02,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:11:02,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923715039] [2020-09-25 04:11:02,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:11:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:02,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:03,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:03,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:03,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 04:11:07,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:11:07,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 04:11:07,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:11:07,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 04:11:07,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:11:07,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:07,531 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:11:07,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:11:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:11:07,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 04:11:07,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:07,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:07,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:11:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:07,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:11:07,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:07,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:11:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:07,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:11:07,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:07,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:07,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:11:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:07,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:11:07,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:07,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:07,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:07,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:11:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:07,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:07,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:07,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:07,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:11:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:11:07,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:11:07,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:11:07,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:07,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:11:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:11:07,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 04:11:07,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:07,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:11:07,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:07,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:11:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:11:07,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:11:07,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:07,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:07,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:11:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:07,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:11:07,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:07,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:11:07,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:07,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 04:11:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:07,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:11:07,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:11:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 04:11:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:07,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:07,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:07,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:07,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:07,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:11:07,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:07,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:11:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:11:07,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:07,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:11:07,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923715039] [2020-09-25 04:11:07,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:11:07,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:11:07,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651966801] [2020-09-25 04:11:07,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:11:07,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:11:07,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:11:07,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:11:07,916 INFO L87 Difference]: Start difference. First operand 336 states and 361 transitions. Second operand 9 states. [2020-09-25 04:11:08,447 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:11:09,997 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:11:10,369 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:11:10,701 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:11:11,045 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:11:11,361 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:11:11,811 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:11:12,151 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:11:12,510 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:11:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:11:13,080 INFO L93 Difference]: Finished difference Result 398 states and 443 transitions. [2020-09-25 04:11:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:11:13,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-25 04:11:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:11:13,084 INFO L225 Difference]: With dead ends: 398 [2020-09-25 04:11:13,084 INFO L226 Difference]: Without dead ends: 395 [2020-09-25 04:11:13,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:11:13,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-25 04:11:13,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 336. [2020-09-25 04:11:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 04:11:13,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 360 transitions. [2020-09-25 04:11:13,127 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 360 transitions. Word has length 184 [2020-09-25 04:11:13,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:11:13,128 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 360 transitions. [2020-09-25 04:11:13,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:11:13,128 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 360 transitions. [2020-09-25 04:11:13,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 04:11:13,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:11:13,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:11:13,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:11:13,132 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:11:13,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:11:13,132 INFO L82 PathProgramCache]: Analyzing trace with hash 716052031, now seen corresponding path program 1 times [2020-09-25 04:11:13,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:11:13,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146529762] [2020-09-25 04:11:13,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:11:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:13,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:13,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking...