/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=1.0 --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_spec2_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:39:43,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:39:43,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:39:44,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:39:44,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:39:44,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:39:44,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:39:44,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:39:44,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:39:44,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:39:44,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:39:44,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:39:44,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:39:44,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:39:44,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:39:44,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:39:44,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:39:44,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:39:44,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:39:44,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:39:44,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:39:44,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:39:44,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:39:44,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:39:44,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:39:44,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:39:44,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:39:44,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:39:44,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:39:44,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:39:44,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:39:44,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:39:44,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:39:44,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:39:44,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:39:44,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:39:44,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:39:44,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:39:44,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:39:44,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:39:44,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:39:44,059 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 08:39:44,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:39:44,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:39:44,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:39:44,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:39:44,121 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:39:44,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:39:44,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:39:44,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:39:44,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:39:44,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:39:44,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:39:44,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:39:44,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:39:44,124 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:39:44,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:39:44,124 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:39:44,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:39:44,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:39:44,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:39:44,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:39:44,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:39:44,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:39:44,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:39:44,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:39:44,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:39:44,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:39:44,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:39:44,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:39:44,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:39:44,128 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:39:44,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:39:44,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:39:44,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:39:44,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:39:44,677 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:39:44,678 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2020-09-25 08:39:44,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c4fbdc9d/30d5afd492c7468e9b46d6c65ba19d60/FLAG9b89f2491 [2020-09-25 08:39:45,375 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:39:45,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2020-09-25 08:39:45,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c4fbdc9d/30d5afd492c7468e9b46d6c65ba19d60/FLAG9b89f2491 [2020-09-25 08:39:45,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c4fbdc9d/30d5afd492c7468e9b46d6c65ba19d60 [2020-09-25 08:39:45,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:39:45,682 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:39:45,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:39:45,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:39:45,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:39:45,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:45" (1/1) ... [2020-09-25 08:39:45,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:45, skipping insertion in model container [2020-09-25 08:39:45,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:45" (1/1) ... [2020-09-25 08:39:45,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:39:45,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:39:46,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:39:46,312 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:39:46,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:39:46,461 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:39:46,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46 WrapperNode [2020-09-25 08:39:46,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:39:46,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:39:46,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:39:46,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:39:46,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (1/1) ... [2020-09-25 08:39:46,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (1/1) ... [2020-09-25 08:39:46,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (1/1) ... [2020-09-25 08:39:46,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (1/1) ... [2020-09-25 08:39:46,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (1/1) ... [2020-09-25 08:39:46,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (1/1) ... [2020-09-25 08:39:46,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (1/1) ... [2020-09-25 08:39:46,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:39:46,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:39:46,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:39:46,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:39:46,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (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 08:39:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:39:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:39:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:39:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:39:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:39:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:39:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:39:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:39:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:39:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:39:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:39:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:39:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:39:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:39:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:39:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:39:46,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:39:46,645 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:39:46,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:39:46,645 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:39:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:39:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:39:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:39:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:39:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:39:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:39:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:39:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:39:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:39:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:39:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:39:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:39:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:39:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:39:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:39:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:39:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:39:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:39:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:39:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:39:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:39:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:39:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:39:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:39:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:39:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:39:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:39:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:39:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:39:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:39:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:39:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:39:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:39:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:39:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:39:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:39:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:39:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:39:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:39:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:39:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:39:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:39:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:39:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:39:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:39:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:39:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:39:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:39:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:39:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:39:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:39:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:39:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:39:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:39:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:39:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:39:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:39:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:39:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:39:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:39:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:39:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:39:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:39:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:39:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:39:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:39:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:39:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:39:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:39:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:39:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:39:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:39:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:39:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:39:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:39:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:39:47,972 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:39:47,972 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:39:47,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:47 BoogieIcfgContainer [2020-09-25 08:39:47,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:39:47,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:39:47,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:39:47,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:39:47,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:39:45" (1/3) ... [2020-09-25 08:39:47,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81deec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:47, skipping insertion in model container [2020-09-25 08:39:47,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:46" (2/3) ... [2020-09-25 08:39:47,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81deec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:47, skipping insertion in model container [2020-09-25 08:39:47,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:47" (3/3) ... [2020-09-25 08:39:47,991 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2020-09-25 08:39:48,006 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:39:48,018 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:39:48,044 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:39:48,081 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:39:48,081 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:39:48,081 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:39:48,082 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:39:48,082 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:39:48,082 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:39:48,082 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:39:48,082 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:39:48,114 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-25 08:39:48,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:39:48,134 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:48,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:48,137 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:48,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:48,147 INFO L82 PathProgramCache]: Analyzing trace with hash -149848456, now seen corresponding path program 1 times [2020-09-25 08:39:48,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:48,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765431676] [2020-09-25 08:39:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:48,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:48,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:50,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:52,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:53,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:53,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:39:53,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:39:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:39:53,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:53,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:39:53,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:53,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 08:39:54,121 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:54,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:54,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:54,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:54,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:54,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 08:39:54,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:54,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:54,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:54,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:54,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:54,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:54,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:54,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:54,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:54,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:54,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:54,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:54,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:54,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:54,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:39:54,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:54,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:54,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:54,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:54,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:54,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:54,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:54,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:54,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:54,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:54,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:54,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:54,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:54,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:54,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:54,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:54,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:54,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:39:54,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:54,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:54,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:54,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:54,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:54,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:54,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:54,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:39:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:54,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:54,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:54,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:54,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:54,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:54,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:54,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:54,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:39:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:54,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:54,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:54,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:39:54,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:54,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:54,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:54,546 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 08:39:54,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765431676] [2020-09-25 08:39:54,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:54,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:39:54,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667151071] [2020-09-25 08:39:54,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:39:54,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:54,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:39:54,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:39:54,597 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 4 states. [2020-09-25 08:39:56,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:56,456 INFO L93 Difference]: Finished difference Result 515 states and 614 transitions. [2020-09-25 08:39:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:39:56,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:39:56,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:56,481 INFO L225 Difference]: With dead ends: 515 [2020-09-25 08:39:56,482 INFO L226 Difference]: Without dead ends: 326 [2020-09-25 08:39:56,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:39:56,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-25 08:39:56,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 274. [2020-09-25 08:39:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 08:39:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 301 transitions. [2020-09-25 08:39:56,625 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 301 transitions. Word has length 148 [2020-09-25 08:39:56,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:56,629 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 301 transitions. [2020-09-25 08:39:56,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:39:56,630 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 301 transitions. [2020-09-25 08:39:56,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:39:56,648 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:56,649 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] [2020-09-25 08:39:56,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:39:56,649 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:56,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:56,650 INFO L82 PathProgramCache]: Analyzing trace with hash -807647223, now seen corresponding path program 1 times [2020-09-25 08:39:56,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:56,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726881107] [2020-09-25 08:39:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:56,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:56,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:01,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:01,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:40:01,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:40:01,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:40:01,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:01,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:01,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:40:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:40:01,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:02,116 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:02,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:02,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:02,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:02,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:02,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 08:40:02,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:02,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:02,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:02,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:02,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:02,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:02,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:02,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:02,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:02,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:02,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:02,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:02,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:02,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:02,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:02,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:02,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:02,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:02,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:02,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:02,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:02,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:02,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:02,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:02,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:02,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:02,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:02,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:02,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:02,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:02,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:02,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:02,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:02,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:02,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:02,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:02,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:02,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:02,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:02,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:02,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:02,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:02,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:02,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:02,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:02,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:02,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:02,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:02,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:40:02,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:40:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:02,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:02,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:02,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:02,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:02,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:02,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:02,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:02,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:02,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:40:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:02,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:02,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:02,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:02,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:02,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:02,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:02,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:02,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:02,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:02,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:40:02,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726881107] [2020-09-25 08:40:02,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:02,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:40:02,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169837145] [2020-09-25 08:40:02,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:40:02,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:02,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:40:02,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:40:02,399 INFO L87 Difference]: Start difference. First operand 274 states and 301 transitions. Second operand 5 states. [2020-09-25 08:40:03,073 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:40:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:04,309 INFO L93 Difference]: Finished difference Result 438 states and 501 transitions. [2020-09-25 08:40:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:40:04,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:40:04,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:04,323 INFO L225 Difference]: With dead ends: 438 [2020-09-25 08:40:04,324 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 08:40:04,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:40:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 08:40:04,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 264. [2020-09-25 08:40:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-25 08:40:04,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 288 transitions. [2020-09-25 08:40:04,372 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 288 transitions. Word has length 149 [2020-09-25 08:40:04,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:04,372 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 288 transitions. [2020-09-25 08:40:04,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:40:04,373 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 288 transitions. [2020-09-25 08:40:04,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 08:40:04,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:04,375 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] [2020-09-25 08:40:04,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:40:04,375 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:04,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:04,376 INFO L82 PathProgramCache]: Analyzing trace with hash 603003046, now seen corresponding path program 1 times [2020-09-25 08:40:04,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:04,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557487101] [2020-09-25 08:40:04,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:04,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:05,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:05,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:07,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:09,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:09,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 08:40:09,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:40:09,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 08:40:09,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:09,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:09,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:40:09,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 08:40:09,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 08:40:09,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:09,788 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:09,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:09,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:10,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:10,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:10,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 08:40:10,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:10,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:10,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:40:10,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:10,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:10,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:10,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:10,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:10,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:10,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:10,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:10,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:10,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:10,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:10,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:10,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:10,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:10,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:10,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:10,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:10,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:10,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:10,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:10,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:10,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:10,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:40:10,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:10,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:10,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:10,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:10,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:10,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:10,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:10,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:10,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:10,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:10,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:10,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:10,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:10,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:10,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:10,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:10,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:10,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:10,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:10,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:10,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:10,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:40:10,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:10,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:40:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:10,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:10,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:10,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:10,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:40:10,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:10,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:40:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:10,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:10,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 08:40:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:10,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:10,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:10,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:10,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:10,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:10,232 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 08:40:10,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557487101] [2020-09-25 08:40:10,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:10,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:40:10,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754526709] [2020-09-25 08:40:10,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:40:10,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:10,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:40:10,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:40:10,236 INFO L87 Difference]: Start difference. First operand 264 states and 288 transitions. Second operand 9 states. [2020-09-25 08:40:10,866 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:40:12,116 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:40:12,479 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:40:12,938 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:40:13,303 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:40:13,681 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:40:14,018 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:40:14,335 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:40:14,902 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:40:16,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:16,259 INFO L93 Difference]: Finished difference Result 621 states and 731 transitions. [2020-09-25 08:40:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 08:40:16,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-25 08:40:16,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:16,265 INFO L225 Difference]: With dead ends: 621 [2020-09-25 08:40:16,265 INFO L226 Difference]: Without dead ends: 472 [2020-09-25 08:40:16,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 08:40:16,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-09-25 08:40:16,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 395. [2020-09-25 08:40:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-25 08:40:16,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 441 transitions. [2020-09-25 08:40:16,324 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 441 transitions. Word has length 158 [2020-09-25 08:40:16,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:16,325 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 441 transitions. [2020-09-25 08:40:16,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:40:16,325 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 441 transitions. [2020-09-25 08:40:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 08:40:16,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:16,328 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] [2020-09-25 08:40:16,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:40:16,329 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:16,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:16,329 INFO L82 PathProgramCache]: Analyzing trace with hash -100114240, now seen corresponding path program 1 times [2020-09-25 08:40:16,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:16,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296784496] [2020-09-25 08:40:16,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:16,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:17,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:17,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 08:40:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:40:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 08:40:21,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:21,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:40:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 08:40:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:40:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:21,676 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:21,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:21,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:21,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:21,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:21,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 08:40:21,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:21,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:21,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:40:21,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:21,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:21,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:21,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:21,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:21,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:21,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:21,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:21,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:21,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:21,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:21,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:21,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:21,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:21,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:21,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:21,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:21,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:21,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:21,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:21,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:21,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:21,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:21,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:21,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:21,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:21,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:22,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:22,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:22,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:22,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:22,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:22,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:22,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:22,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:22,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:22,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:22,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:22,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:22,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:22,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:22,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:22,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:22,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:22,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:22,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:22,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:40:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:22,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:40:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:22,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:22,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:22,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:40:22,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:22,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:40:22,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:22,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:22,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:22,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:22,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:40:22,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:22,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 08:40:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:22,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:22,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:22,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:22,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:22,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:22,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:22,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:22,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:22,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:22,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:22,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:22,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 08:40:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:22,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:22,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:22,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:22,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:22,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:22,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:22,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:22,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:22,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:22,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:22,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:22,082 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 08:40:22,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296784496] [2020-09-25 08:40:22,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:22,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:40:22,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841312829] [2020-09-25 08:40:22,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:40:22,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:22,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:40:22,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:40:22,085 INFO L87 Difference]: Start difference. First operand 395 states and 441 transitions. Second operand 6 states. [2020-09-25 08:40:22,642 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:40:25,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:25,169 INFO L93 Difference]: Finished difference Result 1100 states and 1305 transitions. [2020-09-25 08:40:25,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:40:25,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2020-09-25 08:40:25,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:25,178 INFO L225 Difference]: With dead ends: 1100 [2020-09-25 08:40:25,178 INFO L226 Difference]: Without dead ends: 820 [2020-09-25 08:40:25,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:40:25,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2020-09-25 08:40:25,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 666. [2020-09-25 08:40:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2020-09-25 08:40:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 759 transitions. [2020-09-25 08:40:25,281 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 759 transitions. Word has length 163 [2020-09-25 08:40:25,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:25,281 INFO L479 AbstractCegarLoop]: Abstraction has 666 states and 759 transitions. [2020-09-25 08:40:25,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:40:25,282 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 759 transitions. [2020-09-25 08:40:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 08:40:25,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:25,286 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] [2020-09-25 08:40:25,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:40:25,286 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:25,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:25,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1046559232, now seen corresponding path program 1 times [2020-09-25 08:40:25,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:25,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895049923] [2020-09-25 08:40:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:25,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:25,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:26,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 08:40:30,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:40:30,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:40:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:40:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:40:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:40:30,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,708 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:30,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:30,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 08:40:30,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:30,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:30,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:30,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:30,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:30,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:30,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:30,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:30,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:30,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:30,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:30,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:30,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:30,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:30,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:30,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:40:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:40:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:40:30,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:30,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:40:30,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 08:40:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:40:30,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:30,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:40:30,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:40:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:30,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:30,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:30,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:30,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 08:40:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:30,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:30,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:30,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:30,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:30,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:30,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:30,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:30,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:30,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:30,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:30,941 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 08:40:30,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895049923] [2020-09-25 08:40:30,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:30,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:40:30,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836120134] [2020-09-25 08:40:30,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:40:30,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:30,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:40:30,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:40:30,944 INFO L87 Difference]: Start difference. First operand 666 states and 759 transitions. Second operand 7 states. [2020-09-25 08:40:31,576 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:40:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:34,502 INFO L93 Difference]: Finished difference Result 1625 states and 2023 transitions. [2020-09-25 08:40:34,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 08:40:34,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-25 08:40:34,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:34,518 INFO L225 Difference]: With dead ends: 1625 [2020-09-25 08:40:34,518 INFO L226 Difference]: Without dead ends: 1622 [2020-09-25 08:40:34,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:40:34,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2020-09-25 08:40:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 965. [2020-09-25 08:40:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-09-25 08:40:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1110 transitions. [2020-09-25 08:40:34,686 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1110 transitions. Word has length 172 [2020-09-25 08:40:34,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:34,687 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1110 transitions. [2020-09-25 08:40:34,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:40:34,687 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1110 transitions. [2020-09-25 08:40:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 08:40:34,703 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:34,704 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:40:34,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:40:34,704 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:34,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1245424894, now seen corresponding path program 1 times [2020-09-25 08:40:34,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:34,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019740311] [2020-09-25 08:40:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:34,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:34,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:35,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking...