/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:26:35,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:26:35,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:26:35,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:26:35,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:26:35,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:26:35,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:26:35,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:26:35,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:26:35,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:26:35,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:26:35,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:26:35,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:26:35,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:26:35,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:26:35,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:26:36,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:26:36,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:26:36,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:26:36,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:26:36,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:26:36,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:26:36,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:26:36,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:26:36,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:26:36,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:26:36,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:26:36,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:26:36,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:26:36,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:26:36,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:26:36,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:26:36,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:26:36,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:26:36,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:26:36,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:26:36,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:26:36,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:26:36,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:26:36,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:26:36,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:26:36,037 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 22:26:36,083 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:26:36,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:26:36,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:26:36,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:26:36,086 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:26:36,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:26:36,087 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:26:36,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:26:36,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:26:36,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:26:36,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:26:36,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:26:36,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:26:36,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:26:36,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:26:36,090 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:26:36,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:26:36,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:26:36,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:26:36,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:26:36,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:26:36,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:26:36,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:26:36,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:26:36,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:26:36,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:26:36,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:26:36,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:26:36,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:26:36,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:26:36,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:26:36,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:26:36,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:26:36,611 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:26:36,611 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:26:36,613 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2020-09-24 22:26:36,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/253ac76ec/077f43589a95448496d427d0c293dcf1/FLAG33625b051 [2020-09-24 22:26:37,299 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:26:37,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2020-09-24 22:26:37,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/253ac76ec/077f43589a95448496d427d0c293dcf1/FLAG33625b051 [2020-09-24 22:26:37,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/253ac76ec/077f43589a95448496d427d0c293dcf1 [2020-09-24 22:26:37,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:26:37,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:26:37,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:26:37,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:26:37,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:26:37,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:26:37" (1/1) ... [2020-09-24 22:26:37,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:37, skipping insertion in model container [2020-09-24 22:26:37,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:26:37" (1/1) ... [2020-09-24 22:26:37,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:26:37,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:26:38,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:26:38,182 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:26:38,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:26:38,309 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:26:38,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38 WrapperNode [2020-09-24 22:26:38,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:26:38,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:26:38,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:26:38,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:26:38,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (1/1) ... [2020-09-24 22:26:38,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (1/1) ... [2020-09-24 22:26:38,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (1/1) ... [2020-09-24 22:26:38,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (1/1) ... [2020-09-24 22:26:38,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (1/1) ... [2020-09-24 22:26:38,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (1/1) ... [2020-09-24 22:26:38,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (1/1) ... [2020-09-24 22:26:38,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:26:38,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:26:38,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:26:38,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:26:38,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (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 22:26:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:26:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:26:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:26:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 22:26:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 22:26:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:26:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:26:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:26:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:26:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:26:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:26:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:26:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:26:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:26:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:26:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:26:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:26:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:26:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:26:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:26:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:26:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:26:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:26:38,549 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:26:38,549 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:26:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:26:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:26:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:26:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:26:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:26:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:26:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:26:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:26:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:26:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:26:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:26:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:26:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:26:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:26:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:26:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:26:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:26:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:26:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:26:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:26:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:26:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:26:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 22:26:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 22:26:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:26:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:26:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:26:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:26:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:26:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:26:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:26:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:26:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:26:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:26:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:26:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:26:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:26:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:26:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:26:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:26:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:26:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:26:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:26:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:26:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:26:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:26:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:26:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:26:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:26:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:26:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:26:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:26:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:26:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:26:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:26:39,790 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:26:39,790 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:26:39,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:26:39 BoogieIcfgContainer [2020-09-24 22:26:39,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:26:39,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:26:39,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:26:39,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:26:39,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:26:37" (1/3) ... [2020-09-24 22:26:39,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528a3780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:26:39, skipping insertion in model container [2020-09-24 22:26:39,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:38" (2/3) ... [2020-09-24 22:26:39,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528a3780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:26:39, skipping insertion in model container [2020-09-24 22:26:39,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:26:39" (3/3) ... [2020-09-24 22:26:39,809 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2020-09-24 22:26:39,821 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:26:39,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:26:39,859 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:26:39,895 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:26:39,895 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:26:39,895 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:26:39,895 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:26:39,896 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:26:39,896 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:26:39,896 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:26:39,896 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:26:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-09-24 22:26:39,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 22:26:39,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:39,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:26:39,948 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:39,957 INFO L82 PathProgramCache]: Analyzing trace with hash -368362639, now seen corresponding path program 1 times [2020-09-24 22:26:39,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:39,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562716972] [2020-09-24 22:26:39,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:40,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:42,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:45,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:45,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:45,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 22:26:45,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:26:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 22:26:45,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:45,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 22:26:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:26:45,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:26:45,937 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:45,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:46,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 22:26:46,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:46,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:46,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:46,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:46,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:46,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:46,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:46,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:46,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:46,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:46,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:46,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:46,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:46,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:46,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:46,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:46,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:46,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:46,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:46,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:46,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:46,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:46,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:26:46,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:46,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:46,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:46,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:46,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:46,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:46,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:46,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:46,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:46,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:46,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:46,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:46,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:46,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:46,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:46,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:46,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:46,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:46,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:46,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:46,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 22:26:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:46,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:46,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:46,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:46,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:46,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:26:46,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:26:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:46,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:46,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:26:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:46,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:46,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:46,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:46,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:46,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:26:46,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:46,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:46,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:46,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562716972] [2020-09-24 22:26:46,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:46,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:26:46,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014096477] [2020-09-24 22:26:46,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:26:46,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:46,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:26:46,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:26:46,395 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 9 states. [2020-09-24 22:26:47,312 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:26:48,817 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:49,362 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 22:26:49,742 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:50,124 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:26:50,454 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:51,251 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:26:51,574 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:26:51,907 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:26:52,999 INFO L93 Difference]: Finished difference Result 614 states and 762 transitions. [2020-09-24 22:26:53,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 22:26:53,002 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 22:26:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:26:53,024 INFO L225 Difference]: With dead ends: 614 [2020-09-24 22:26:53,024 INFO L226 Difference]: Without dead ends: 418 [2020-09-24 22:26:53,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:26:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-09-24 22:26:53,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 363. [2020-09-24 22:26:53,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-24 22:26:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 408 transitions. [2020-09-24 22:26:53,174 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 408 transitions. Word has length 148 [2020-09-24 22:26:53,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:26:53,175 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 408 transitions. [2020-09-24 22:26:53,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:26:53,175 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 408 transitions. [2020-09-24 22:26:53,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 22:26:53,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:53,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:26:53,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:26:53,182 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:53,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:53,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1445252408, now seen corresponding path program 1 times [2020-09-24 22:26:53,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:53,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378030860] [2020-09-24 22:26:53,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:54,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:55,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 22:26:58,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:26:58,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-24 22:26:58,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:58,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 22:26:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:26:58,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:58,576 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:58,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:58,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 22:26:58,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:58,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:58,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:58,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:58,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:58,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:58,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:58,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:58,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:58,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:58,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:58,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:58,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:26:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:26:58,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 22:26:58,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:26:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:26:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:26:58,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:26:58,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 22:26:58,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:58,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:26:58,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:26:58,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:26:59,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:59,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:59,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:59,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:26:59,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:59,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 22:26:59,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:59,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:26:59,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:59,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:26:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:59,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:59,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:59,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:26:59,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:59,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:59,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:59,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:59,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:26:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:59,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:59,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:59,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:59,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:59,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:59,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:59,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:59,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:26:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:59,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 22:26:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:59,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:59,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:59,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:59,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:59,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:59,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:59,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 22:26:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:59,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:59,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:59,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:59,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:59,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:59,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:59,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378030860] [2020-09-24 22:26:59,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:59,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:26:59,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782264221] [2020-09-24 22:26:59,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:26:59,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:59,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:26:59,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:26:59,203 INFO L87 Difference]: Start difference. First operand 363 states and 408 transitions. Second operand 10 states. [2020-09-24 22:27:00,891 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:27:01,174 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:27:01,534 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 22:27:01,805 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:27:02,123 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:27:02,403 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:27:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:03,482 INFO L93 Difference]: Finished difference Result 714 states and 872 transitions. [2020-09-24 22:27:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:27:03,483 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2020-09-24 22:27:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:03,490 INFO L225 Difference]: With dead ends: 714 [2020-09-24 22:27:03,490 INFO L226 Difference]: Without dead ends: 466 [2020-09-24 22:27:03,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:27:03,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-24 22:27:03,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 380. [2020-09-24 22:27:03,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 22:27:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 431 transitions. [2020-09-24 22:27:03,560 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 431 transitions. Word has length 187 [2020-09-24 22:27:03,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:03,561 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 431 transitions. [2020-09-24 22:27:03,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:27:03,561 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 431 transitions. [2020-09-24 22:27:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 22:27:03,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:03,566 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:27:03,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:27:03,566 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:03,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:03,567 INFO L82 PathProgramCache]: Analyzing trace with hash -121223214, now seen corresponding path program 1 times [2020-09-24 22:27:03,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:03,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495504006] [2020-09-24 22:27:03,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:03,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:03,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:03,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:04,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:08,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:08,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-24 22:27:08,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:27:08,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 22:27:08,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:08,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:27:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 22:27:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:27:08,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:08,974 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:27:08,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:27:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:08,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:27:09,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 22:27:09,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:09,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:27:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:09,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:09,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:27:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:09,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:09,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:27:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:09,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:09,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:27:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:09,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:27:09,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:27:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:09,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:09,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:27:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 22:27:09,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:09,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:27:09,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:09,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:09,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:09,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:27:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:27:09,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:27:09,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:27:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:27:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:27:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:27:09,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 22:27:09,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:27:09,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:27:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:27:09,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:27:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 22:27:09,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:27:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:27:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:27:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:27:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:27:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:27:09,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:27:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:27:09,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:27:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:09,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:09,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:27:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 22:27:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:09,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:09,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 22:27:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:09,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:09,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:09,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:09,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:09,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:09,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:09,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:09,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:09,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:09,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:27:09,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495504006] [2020-09-24 22:27:09,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:27:09,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:27:09,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587261146] [2020-09-24 22:27:09,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:27:09,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:27:09,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:27:09,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:27:09,480 INFO L87 Difference]: Start difference. First operand 380 states and 431 transitions. Second operand 10 states. [2020-09-24 22:27:10,796 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:27:11,116 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:27:11,459 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:27:11,799 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:27:12,107 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:27:13,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:13,040 INFO L93 Difference]: Finished difference Result 748 states and 937 transitions. [2020-09-24 22:27:13,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:27:13,041 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-24 22:27:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:13,046 INFO L225 Difference]: With dead ends: 748 [2020-09-24 22:27:13,046 INFO L226 Difference]: Without dead ends: 483 [2020-09-24 22:27:13,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:27:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-09-24 22:27:13,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 386. [2020-09-24 22:27:13,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 22:27:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 437 transitions. [2020-09-24 22:27:13,110 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 437 transitions. Word has length 212 [2020-09-24 22:27:13,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:13,110 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 437 transitions. [2020-09-24 22:27:13,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:27:13,111 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 437 transitions. [2020-09-24 22:27:13,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 22:27:13,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:13,114 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:27:13,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:27:13,115 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:13,115 INFO L82 PathProgramCache]: Analyzing trace with hash 569270927, now seen corresponding path program 1 times [2020-09-24 22:27:13,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:13,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670310991] [2020-09-24 22:27:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:13,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:13,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:13,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:13,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-24 22:27:18,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:27:18,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 22:27:18,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-24 22:27:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 22:27:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:18,537 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:27:18,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:27:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:27:18,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 22:27:18,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:27:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:18,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:18,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:27:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:18,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:18,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:27:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:18,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:18,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:27:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:18,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:18,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:27:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:18,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:18,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:27:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 22:27:18,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:27:18,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:18,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:27:18,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:27:18,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:27:18,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:18,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 22:27:18,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:18,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:18,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:27:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:27:18,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 22:27:18,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 22:27:18,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:27:18,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:27:18,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:18,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:27:18,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:27:18,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:18,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:27:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:27:18,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:18,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:27:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:18,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:27:18,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 22:27:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:18,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:18,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:18,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 22:27:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:18,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:18,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:18,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:18,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:18,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:18,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:18,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:18,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:19,065 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 22:27:19,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670310991] [2020-09-24 22:27:19,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:27:19,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 22:27:19,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733771946] [2020-09-24 22:27:19,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:27:19,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:27:19,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:27:19,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:27:19,075 INFO L87 Difference]: Start difference. First operand 386 states and 437 transitions. Second operand 7 states. [2020-09-24 22:27:19,998 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:27:22,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:22,061 INFO L93 Difference]: Finished difference Result 966 states and 1216 transitions. [2020-09-24 22:27:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:27:22,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-24 22:27:22,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:22,072 INFO L225 Difference]: With dead ends: 966 [2020-09-24 22:27:22,072 INFO L226 Difference]: Without dead ends: 679 [2020-09-24 22:27:22,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:27:22,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-24 22:27:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 536. [2020-09-24 22:27:22,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-24 22:27:22,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 617 transitions. [2020-09-24 22:27:22,189 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 617 transitions. Word has length 212 [2020-09-24 22:27:22,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:22,189 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 617 transitions. [2020-09-24 22:27:22,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:27:22,190 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 617 transitions. [2020-09-24 22:27:22,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 22:27:22,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:22,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:27:22,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:27:22,194 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:22,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:22,195 INFO L82 PathProgramCache]: Analyzing trace with hash 2010542165, now seen corresponding path program 1 times [2020-09-24 22:27:22,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:22,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853023032] [2020-09-24 22:27:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:22,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:22,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking...