/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:57:59,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:57:59,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:58:00,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:58:00,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:58:00,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:58:00,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:58:00,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:58:00,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:58:00,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:58:00,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:58:00,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:58:00,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:58:00,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:58:00,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:58:00,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:58:00,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:58:00,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:58:00,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:58:00,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:58:00,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:58:00,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:58:00,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:58:00,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:58:00,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:58:00,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:58:00,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:58:00,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:58:00,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:58:00,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:58:00,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:58:00,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:58:00,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:58:00,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:58:00,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:58:00,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:58:00,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:58:00,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:58:00,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:58:00,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:58:00,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:58:00,117 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 [2020-09-24 16:58:00,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:58:00,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:58:00,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:58:00,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:58:00,162 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:58:00,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:58:00,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:58:00,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:58:00,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:58:00,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:58:00,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:58:00,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:58:00,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:58:00,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:58:00,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:58:00,166 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:58:00,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:58:00,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:58:00,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:58:00,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:58:00,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:58:00,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:58:00,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:58:00,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:58:00,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:58:00,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:58:00,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:58:00,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:58:00,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:58:00,169 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;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;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;log-additional-information=true; [2020-09-24 16:58:00,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:58:00,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:58:00,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:58:00,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:58:00,674 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:58:00,675 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-09-24 16:58:00,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffe3ea851/fbb7290ec4f646be8470c3b2e7d75749/FLAG261c06cd7 [2020-09-24 16:58:01,317 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:58:01,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-09-24 16:58:01,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffe3ea851/fbb7290ec4f646be8470c3b2e7d75749/FLAG261c06cd7 [2020-09-24 16:58:01,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffe3ea851/fbb7290ec4f646be8470c3b2e7d75749 [2020-09-24 16:58:01,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:58:01,593 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:58:01,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:01,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:58:01,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:58:01,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:01" (1/1) ... [2020-09-24 16:58:01,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:01, skipping insertion in model container [2020-09-24 16:58:01,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:01" (1/1) ... [2020-09-24 16:58:01,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:58:01,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:58:02,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:58:02,177 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:58:02,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:58:02,329 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:58:02,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02 WrapperNode [2020-09-24 16:58:02,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:02,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:58:02,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:58:02,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:58:02,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (1/1) ... [2020-09-24 16:58:02,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (1/1) ... [2020-09-24 16:58:02,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (1/1) ... [2020-09-24 16:58:02,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (1/1) ... [2020-09-24 16:58:02,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (1/1) ... [2020-09-24 16:58:02,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (1/1) ... [2020-09-24 16:58:02,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (1/1) ... [2020-09-24 16:58:02,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:58:02,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:58:02,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:58:02,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:58:02,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (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 [2020-09-24 16:58:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:58:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:58:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:58:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:58:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:58:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:58:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:58:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:58:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:58:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:58:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:58:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:58:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:58:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:58:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:58:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:58:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:58:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:58:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:58:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:58:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:58:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:58:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:58:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:58:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:58:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:58:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:58:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:58:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:58:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:58:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:58:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:58:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:58:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:58:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:58:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:58:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:58:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:58:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:58:02,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:58:02,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:58:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:58:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:58:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:58:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:58:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:58:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:58:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:58:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:58:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:58:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:58:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:58:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:58:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:58:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:58:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:58:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:58:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:58:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:58:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:58:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:58:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:58:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:58:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:58:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:58:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:58:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:58:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:58:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:58:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:58:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:58:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:58:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:58:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:58:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:58:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:58:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:58:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:58:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:58:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:58:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:58:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:58:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:58:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:58:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:58:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:58:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:58:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:58:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:58:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:58:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:58:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:58:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:58:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:58:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:58:02,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:58:03,804 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:58:03,804 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:58:03,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:03 BoogieIcfgContainer [2020-09-24 16:58:03,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:58:03,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:58:03,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:58:03,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:58:03,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:01" (1/3) ... [2020-09-24 16:58:03,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55866f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:03, skipping insertion in model container [2020-09-24 16:58:03,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:02" (2/3) ... [2020-09-24 16:58:03,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55866f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:03, skipping insertion in model container [2020-09-24 16:58:03,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:03" (3/3) ... [2020-09-24 16:58:03,820 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2020-09-24 16:58:03,832 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:58:03,843 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:58:03,866 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:58:03,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:58:03,900 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:58:03,900 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:58:03,901 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:58:03,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:58:03,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:58:03,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:58:03,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:58:03,931 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-24 16:58:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:58:03,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:03,951 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:58:03,951 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:03,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:03,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1597638974, now seen corresponding path program 1 times [2020-09-24 16:58:03,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:03,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198821968] [2020-09-24 16:58:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:04,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:04,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:06,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:06,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:09,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:16,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:16,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:58:16,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:58:16,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12236 [2020-09-24 16:58:16,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:58:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:58:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 16:58:16,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-24 16:58:17,054 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:17,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:17,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-24 16:58:17,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:58:17,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:17,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:17,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:58:17,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:17,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:17,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:17,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:17,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:17,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:17,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:17,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:17,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:58:17,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:17,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:17,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:17,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:17,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:17,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:17,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:17,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:17,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:17,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:17,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:58:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:17,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:58:17,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:17,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:58:17,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:17,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:17,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:17,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:17,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:58:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:17,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:17,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:17,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:17,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:58:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:17,617 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:17,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:17,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:17,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:58:17,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:17,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:17,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:17,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:17,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:58:17,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198821968] [2020-09-24 16:58:17,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:17,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:58:17,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898109711] [2020-09-24 16:58:17,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:58:17,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:17,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:58:17,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:58:17,736 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 9 states. [2020-09-24 16:58:18,331 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:58:19,127 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:19,461 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:58:20,794 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:58:21,099 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:21,440 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:21,887 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:22,199 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:58:22,498 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:23,077 INFO L93 Difference]: Finished difference Result 575 states and 700 transitions. [2020-09-24 16:58:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:58:23,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:58:23,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:23,116 INFO L225 Difference]: With dead ends: 575 [2020-09-24 16:58:23,117 INFO L226 Difference]: Without dead ends: 395 [2020-09-24 16:58:23,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:58:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-24 16:58:23,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 344. [2020-09-24 16:58:23,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-24 16:58:23,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 385 transitions. [2020-09-24 16:58:23,279 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 385 transitions. Word has length 160 [2020-09-24 16:58:23,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:23,280 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 385 transitions. [2020-09-24 16:58:23,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:58:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 385 transitions. [2020-09-24 16:58:23,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 16:58:23,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:23,287 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:58:23,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:58:23,288 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:23,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:23,288 INFO L82 PathProgramCache]: Analyzing trace with hash -67508309, now seen corresponding path program 1 times [2020-09-24 16:58:23,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:23,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676811778] [2020-09-24 16:58:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:23,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 16:58:24,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-09-24 16:58:24,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:58:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 201 [2020-09-24 16:58:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:24,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:24,537 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:24,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:24,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 16:58:24,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:24,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:24,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:24,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:24,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:24,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:24,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:24,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:24,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:24,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:24,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:24,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:24,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:24,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:24,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:24,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:24,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:58:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:24,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:24,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:24,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:58:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:24,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:24,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:24,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:24,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:24,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:24,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:58:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:58:24,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 16:58:24,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:58:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:58:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:24,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 16:58:24,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:24,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:58:24,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:24,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:24,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:58:24,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:24,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:24,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:24,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:24,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:58:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:24,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 16:58:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:24,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:24,996 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:24,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:24,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:24,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:24,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:24,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:24,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:24,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:25,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 16:58:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:25,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:25,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:25,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:25,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:25,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:25,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:25,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:25,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676811778] [2020-09-24 16:58:25,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:25,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 16:58:25,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116559861] [2020-09-24 16:58:25,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 16:58:25,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:25,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 16:58:25,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:58:25,151 INFO L87 Difference]: Start difference. First operand 344 states and 385 transitions. Second operand 11 states. [2020-09-24 16:58:26,723 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:27,052 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:27,368 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:58:27,688 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:28,025 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:58:28,320 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:29,347 INFO L93 Difference]: Finished difference Result 741 states and 921 transitions. [2020-09-24 16:58:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 16:58:29,347 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 207 [2020-09-24 16:58:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:29,362 INFO L225 Difference]: With dead ends: 741 [2020-09-24 16:58:29,362 INFO L226 Difference]: Without dead ends: 512 [2020-09-24 16:58:29,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 16:58:29,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-09-24 16:58:29,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 358. [2020-09-24 16:58:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-24 16:58:29,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 402 transitions. [2020-09-24 16:58:29,449 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 402 transitions. Word has length 207 [2020-09-24 16:58:29,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:29,450 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 402 transitions. [2020-09-24 16:58:29,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 16:58:29,450 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 402 transitions. [2020-09-24 16:58:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 16:58:29,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:29,454 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:58:29,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:58:29,454 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:29,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:29,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1295776338, now seen corresponding path program 1 times [2020-09-24 16:58:29,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:29,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960134564] [2020-09-24 16:58:29,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:29,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:29,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:58:31,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:58:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1608 [2020-09-24 16:58:31,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 16:58:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:58:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,399 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:31,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:31,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 16:58:31,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:31,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:31,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:31,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:31,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:31,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:31,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:31,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:31,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:31,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:31,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:31,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:31,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:31,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:31,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:58:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:31,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:31,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:58:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:31,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:31,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:58:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:58:31,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:58:31,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 16:58:31,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:58:31,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:58:31,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:31,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 16:58:31,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:58:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:58:31,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:31,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:31,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:58:31,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:58:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:31,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:31,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:31,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:58:31,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 16:58:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:31,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:31,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 16:58:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:31,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:31,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:31,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:31,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:31,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960134564] [2020-09-24 16:58:31,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:31,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:58:31,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330663587] [2020-09-24 16:58:31,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:58:31,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:31,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:58:31,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:58:31,836 INFO L87 Difference]: Start difference. First operand 358 states and 402 transitions. Second operand 10 states. [2020-09-24 16:58:32,506 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:33,390 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:33,680 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:34,005 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:34,348 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:34,635 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:35,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:35,350 INFO L93 Difference]: Finished difference Result 660 states and 786 transitions. [2020-09-24 16:58:35,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:58:35,351 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 16:58:35,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:35,359 INFO L225 Difference]: With dead ends: 660 [2020-09-24 16:58:35,359 INFO L226 Difference]: Without dead ends: 417 [2020-09-24 16:58:35,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:58:35,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-24 16:58:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 344. [2020-09-24 16:58:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-24 16:58:35,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 376 transitions. [2020-09-24 16:58:35,399 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 376 transitions. Word has length 194 [2020-09-24 16:58:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:35,400 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 376 transitions. [2020-09-24 16:58:35,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:58:35,400 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 376 transitions. [2020-09-24 16:58:35,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 16:58:35,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:35,403 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:58:35,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:58:35,404 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:35,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:35,404 INFO L82 PathProgramCache]: Analyzing trace with hash 956542472, now seen corresponding path program 1 times [2020-09-24 16:58:35,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:35,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380944166] [2020-09-24 16:58:35,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:36,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:36,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 16:58:36,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:36,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1276 [2020-09-24 16:58:36,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:58:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 16:58:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 16:58:36,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,093 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:37,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:37,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 16:58:37,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 16:58:37,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:37,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:37,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:37,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:37,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:37,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:37,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:37,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:37,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:37,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:58:37,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:37,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:37,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 16:58:37,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:37,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:37,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:37,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:37,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:58:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:37,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:58:37,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:37,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:58:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:37,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:58:37,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:58:37,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:37,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:37,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:37,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:37,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:37,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:58:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:58:37,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 16:58:37,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:58:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 16:58:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:37,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 16:58:37,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:37,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:37,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:37,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:58:37,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:58:37,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:37,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:58:37,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 16:58:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:37,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:37,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:37,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:37,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:37,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 16:58:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:37,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:37,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:37,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:37,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:37,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:37,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:37,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:37,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380944166] [2020-09-24 16:58:37,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:37,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:58:37,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24651706] [2020-09-24 16:58:37,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:58:37,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:37,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:58:37,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:58:37,767 INFO L87 Difference]: Start difference. First operand 344 states and 376 transitions. Second operand 8 states. [2020-09-24 16:58:38,502 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:58:39,800 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:58:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:42,701 INFO L93 Difference]: Finished difference Result 1257 states and 1616 transitions. [2020-09-24 16:58:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 16:58:42,702 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-09-24 16:58:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:42,710 INFO L225 Difference]: With dead ends: 1257 [2020-09-24 16:58:42,710 INFO L226 Difference]: Without dead ends: 1028 [2020-09-24 16:58:42,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2020-09-24 16:58:42,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2020-09-24 16:58:42,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 693. [2020-09-24 16:58:42,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-09-24 16:58:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 794 transitions. [2020-09-24 16:58:42,800 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 794 transitions. Word has length 207 [2020-09-24 16:58:42,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:42,801 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 794 transitions. [2020-09-24 16:58:42,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:58:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 794 transitions. [2020-09-24 16:58:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 16:58:42,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:42,805 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:58:42,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:58:42,806 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:42,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:42,806 INFO L82 PathProgramCache]: Analyzing trace with hash 442790454, now seen corresponding path program 1 times [2020-09-24 16:58:42,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:42,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129158722] [2020-09-24 16:58:42,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:42,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:43,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:47,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:47,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 16:58:47,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:58:47,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4646 [2020-09-24 16:58:47,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:47,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 16:58:47,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 16:58:47,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 16:58:47,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:47,909 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:47,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:47,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:48,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-24 16:58:48,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 16:58:48,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:48,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:48,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:48,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:48,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:48,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,243 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:48,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:58:48,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:48,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:48,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:48,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:48,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:48,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:48,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:48,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:58:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:58:48,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:58:48,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:58:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:58:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:48,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:58:48,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:48,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 16:58:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:48,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:58:48,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:58:48,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:48,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:48,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:48,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 16:58:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:58:48,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 16:58:48,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:48,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 16:58:48,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:48,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:58:48,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:48,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:48,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:48,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:48,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:48,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:48,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:48,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:48,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 16:58:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:48,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:58:48,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:48,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 16:58:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:48,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:48,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:48,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:48,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:48,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:48,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129158722] [2020-09-24 16:58:48,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:48,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 16:58:48,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48018833] [2020-09-24 16:58:48,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 16:58:48,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:48,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 16:58:48,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:58:48,598 INFO L87 Difference]: Start difference. First operand 693 states and 794 transitions. Second operand 14 states. [2020-09-24 16:58:49,205 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190