/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:22:18,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:22:18,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:22:18,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:22:18,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:22:18,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:22:18,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:22:18,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:22:18,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:22:18,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:22:18,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:22:18,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:22:18,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:22:18,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:22:18,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:22:19,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:22:19,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:22:19,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:22:19,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:22:19,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:22:19,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:22:19,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:22:19,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:22:19,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:22:19,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:22:19,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:22:19,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:22:19,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:22:19,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:22:19,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:22:19,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:22:19,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:22:19,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:22:19,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:22:19,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:22:19,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:22:19,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:22:19,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:22:19,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:22:19,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:22:19,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:22:19,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:22:19,054 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:22:19,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:22:19,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:22:19,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:22:19,056 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:22:19,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:22:19,056 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:22:19,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:22:19,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:22:19,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:22:19,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:22:19,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:22:19,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:22:19,058 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:22:19,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:22:19,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:22:19,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:22:19,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:22:19,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:22:19,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:22:19,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:22:19,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:22:19,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:22:19,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:22:19,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:22:19,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:22:19,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:22:19,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:22:19,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:22:19,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:22:19,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:22:19,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:22:19,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:22:19,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:22:19,547 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:22:19,548 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2020-09-25 06:22:19,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf07ab389/e6804d9adbcd4d1b84d6c84489965f2f/FLAG1f6584075 [2020-09-25 06:22:20,271 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:22:20,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2020-09-25 06:22:20,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf07ab389/e6804d9adbcd4d1b84d6c84489965f2f/FLAG1f6584075 [2020-09-25 06:22:20,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf07ab389/e6804d9adbcd4d1b84d6c84489965f2f [2020-09-25 06:22:20,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:22:20,573 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:22:20,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:22:20,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:22:20,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:22:20,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:22:20" (1/1) ... [2020-09-25 06:22:20,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:20, skipping insertion in model container [2020-09-25 06:22:20,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:22:20" (1/1) ... [2020-09-25 06:22:20,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:22:20,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:22:21,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:22:21,168 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:22:21,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:22:21,297 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:22:21,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21 WrapperNode [2020-09-25 06:22:21,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:22:21,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:22:21,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:22:21,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:22:21,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (1/1) ... [2020-09-25 06:22:21,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (1/1) ... [2020-09-25 06:22:21,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (1/1) ... [2020-09-25 06:22:21,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (1/1) ... [2020-09-25 06:22:21,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (1/1) ... [2020-09-25 06:22:21,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (1/1) ... [2020-09-25 06:22:21,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (1/1) ... [2020-09-25 06:22:21,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:22:21,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:22:21,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:22:21,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:22:21,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:22:21,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:22:21,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:22:21,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:22:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:22:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:22:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:22:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:22:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:22:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:22:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:22:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:22:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:22:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:22:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:22:21,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:22:21,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:22:21,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:22:21,486 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:22:21,486 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:22:21,488 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:22:21,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:22:21,488 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:22:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:22:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:22:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:22:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:22:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:22:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:22:21,490 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:22:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:22:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:22:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:22:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:22:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:22:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:22:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:22:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:22:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:22:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:22:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:22:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:22:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:22:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:22:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:22:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:22:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:22:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:22:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:22:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:22:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:22:21,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:22:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:22:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:22:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:22:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:22:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:22:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:22:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:22:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:22:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:22:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:22:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:22:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:22:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:22:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:22:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:22:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:22:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:22:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:22:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:22:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:22:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:22:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:22:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:22:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:22:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:22:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:22:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:22:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:22:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:22:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:22:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:22:21,508 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:22:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:22:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:22:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:22:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:22:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:22:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:22:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:22:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:22:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:22:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:22:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:22:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:22:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:22:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:22:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:22:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:22:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:22:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:22:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:22:22,856 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:22:22,856 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:22:22,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:22:22 BoogieIcfgContainer [2020-09-25 06:22:22,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:22:22,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:22:22,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:22:22,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:22:22,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:22:20" (1/3) ... [2020-09-25 06:22:22,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4fe14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:22:22, skipping insertion in model container [2020-09-25 06:22:22,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:21" (2/3) ... [2020-09-25 06:22:22,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4fe14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:22:22, skipping insertion in model container [2020-09-25 06:22:22,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:22:22" (3/3) ... [2020-09-25 06:22:22,885 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2020-09-25 06:22:22,900 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:22:22,918 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:22:22,945 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:22:22,990 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:22:22,991 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:22:22,991 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:22:22,992 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:22:22,992 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:22:22,993 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:22:22,993 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:22:22,994 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:22:23,039 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-09-25 06:22:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:22:23,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:23,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:23,087 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:23,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:23,098 INFO L82 PathProgramCache]: Analyzing trace with hash -722874537, now seen corresponding path program 1 times [2020-09-25 06:22:23,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:23,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596700385] [2020-09-25 06:22:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:23,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:23,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:25,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:26,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:27,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:28,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:28,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:22:28,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:22:28,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-25 06:22:28,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:28,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:22:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 06:22:28,999 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:29,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:29,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:29,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 06:22:29,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:29,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:29,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:29,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:29,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:29,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:29,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:29,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:29,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:29,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:29,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:29,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:29,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:29,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:29,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:29,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:29,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:29,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:29,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:29,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:29,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:29,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:29,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:29,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:29,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:29,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:29,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:29,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:29,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:29,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:29,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:29,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:29,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:29,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:29,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:29,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:29,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:29,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:29,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:29,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:29,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:29,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:29,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:29,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:29,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:29,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:22:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:29,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:29,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:29,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:29,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:29,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:22:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:29,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:29,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:29,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:29,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:29,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:29,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:22:29,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596700385] [2020-09-25 06:22:29,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:29,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:22:29,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246231465] [2020-09-25 06:22:29,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:22:29,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:29,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:22:29,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:22:29,381 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 4 states. [2020-09-25 06:22:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:30,951 INFO L93 Difference]: Finished difference Result 574 states and 680 transitions. [2020-09-25 06:22:30,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:22:30,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:22:30,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:30,976 INFO L225 Difference]: With dead ends: 574 [2020-09-25 06:22:30,976 INFO L226 Difference]: Without dead ends: 356 [2020-09-25 06:22:30,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:22:31,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-09-25 06:22:31,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 303. [2020-09-25 06:22:31,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-09-25 06:22:31,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 333 transitions. [2020-09-25 06:22:31,109 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 333 transitions. Word has length 148 [2020-09-25 06:22:31,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:31,110 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 333 transitions. [2020-09-25 06:22:31,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:22:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 333 transitions. [2020-09-25 06:22:31,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:22:31,115 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:31,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:31,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:22:31,116 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:31,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:31,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1138683405, now seen corresponding path program 1 times [2020-09-25 06:22:31,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:31,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188973475] [2020-09-25 06:22:31,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:31,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:31,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:33,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:34,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:35,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:22:36,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:22:36,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 06:22:36,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:22:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:22:36,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:36,523 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:36,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:36,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:36,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 06:22:36,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:36,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:36,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:36,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:36,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:36,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:36,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:36,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:36,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:36,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:36,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:36,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:36,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:36,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:36,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:36,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:36,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:36,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:36,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:36,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:36,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:36,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:36,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:22:36,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:22:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:36,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:36,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:36,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:36,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:36,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:36,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:36,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:22:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:22:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:36,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:36,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:36,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:36,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:36,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:36,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:36,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:22:36,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188973475] [2020-09-25 06:22:36,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:36,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:22:36,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691897275] [2020-09-25 06:22:36,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:22:36,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:36,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:22:36,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:22:36,838 INFO L87 Difference]: Start difference. First operand 303 states and 333 transitions. Second operand 5 states. [2020-09-25 06:22:37,505 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:22:38,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:38,907 INFO L93 Difference]: Finished difference Result 499 states and 571 transitions. [2020-09-25 06:22:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:22:38,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:22:38,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:38,919 INFO L225 Difference]: With dead ends: 499 [2020-09-25 06:22:38,919 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 06:22:38,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:22:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 06:22:38,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 293. [2020-09-25 06:22:38,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-09-25 06:22:38,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 320 transitions. [2020-09-25 06:22:39,000 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 320 transitions. Word has length 149 [2020-09-25 06:22:39,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:39,002 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 320 transitions. [2020-09-25 06:22:39,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:22:39,003 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 320 transitions. [2020-09-25 06:22:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:22:39,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:39,006 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] [2020-09-25 06:22:39,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:22:39,006 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:39,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:39,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1213678048, now seen corresponding path program 1 times [2020-09-25 06:22:39,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:39,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511871813] [2020-09-25 06:22:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:39,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:39,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:41,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:22:44,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:22:44,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 06:22:44,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:44,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:22:44,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:22:44,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,450 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:44,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:44,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 06:22:44,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:44,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:44,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:44,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:44,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:44,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:44,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:44,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:44,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:44,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:44,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:44,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:44,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:44,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:22:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:44,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:44,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:22:44,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:44,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:22:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:44,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:44,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:44,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:22:44,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:22:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:44,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:22:44,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:44,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:22:44,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511871813] [2020-09-25 06:22:44,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:44,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:22:44,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927975832] [2020-09-25 06:22:44,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:22:44,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:44,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:22:44,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:22:44,728 INFO L87 Difference]: Start difference. First operand 293 states and 320 transitions. Second operand 6 states. [2020-09-25 06:22:45,240 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:22:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:46,555 INFO L93 Difference]: Finished difference Result 546 states and 636 transitions. [2020-09-25 06:22:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:22:46,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:22:46,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:46,560 INFO L225 Difference]: With dead ends: 546 [2020-09-25 06:22:46,561 INFO L226 Difference]: Without dead ends: 368 [2020-09-25 06:22:46,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:22:46,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-09-25 06:22:46,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 293. [2020-09-25 06:22:46,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-09-25 06:22:46,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 319 transitions. [2020-09-25 06:22:46,616 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 319 transitions. Word has length 162 [2020-09-25 06:22:46,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:46,617 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 319 transitions. [2020-09-25 06:22:46,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:22:46,617 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 319 transitions. [2020-09-25 06:22:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 06:22:46,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:46,620 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] [2020-09-25 06:22:46,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:22:46,620 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:46,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:46,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1760191468, now seen corresponding path program 1 times [2020-09-25 06:22:46,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:46,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602400244] [2020-09-25 06:22:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:46,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:46,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:47,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:47,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:49,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:49,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:50,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:50,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:51,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:51,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:51,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 06:22:51,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:22:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:22:51,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:51,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:22:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 06:22:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:22:51,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:52,027 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:52,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 06:22:52,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:52,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:52,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:52,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:52,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:52,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:22:52,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:52,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:52,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:52,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:52,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:52,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:22:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:52,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:52,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:52,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:22:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:22:52,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:22:52,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 06:22:52,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:22:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:22:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:22:52,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:22:52,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:22:52,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:22:52,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:22:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:22:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:22:52,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:22:52,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:22:52,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:22:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:22:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:22:52,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:52,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:52,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:22:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 06:22:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:52,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:52,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 06:22:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:52,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:52,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:52,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:52,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:52,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:52,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:52,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:52,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:22:52,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:22:52,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602400244] [2020-09-25 06:22:52,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:52,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:22:52,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797726561] [2020-09-25 06:22:52,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:22:52,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:52,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:22:52,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:22:52,534 INFO L87 Difference]: Start difference. First operand 293 states and 319 transitions. Second operand 8 states. [2020-09-25 06:22:53,290 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:22:55,051 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:22:56,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:56,657 INFO L93 Difference]: Finished difference Result 748 states and 894 transitions. [2020-09-25 06:22:56,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 06:22:56,658 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 180 [2020-09-25 06:22:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:56,664 INFO L225 Difference]: With dead ends: 748 [2020-09-25 06:22:56,664 INFO L226 Difference]: Without dead ends: 570 [2020-09-25 06:22:56,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-09-25 06:22:56,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-09-25 06:22:56,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 429. [2020-09-25 06:22:56,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 06:22:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 464 transitions. [2020-09-25 06:22:56,734 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 464 transitions. Word has length 180 [2020-09-25 06:22:56,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:56,734 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 464 transitions. [2020-09-25 06:22:56,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:22:56,735 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 464 transitions. [2020-09-25 06:22:56,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 06:22:56,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:56,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:56,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:22:56,738 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:56,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:56,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1107693501, now seen corresponding path program 1 times [2020-09-25 06:22:56,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:56,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902002525] [2020-09-25 06:22:56,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:56,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:57,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:57,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:57,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:58,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:01,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:01,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:01,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 06:23:01,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:23:01,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:23:01,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:01,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:01,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:23:01,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:23:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 06:23:01,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,093 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:23:02,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:23:02,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 06:23:02,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:23:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:02,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:02,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:23:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:02,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:02,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:23:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:02,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:02,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:02,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:23:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:02,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:02,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:23:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:23:02,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:02,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:23:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:23:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:23:02,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:02,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:23:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:02,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:23:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 06:23:02,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 06:23:02,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:02,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 06:23:02,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:02,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:23:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:23:02,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:23:02,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:23:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:23:02,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:23:02,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:23:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:23:02,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:23:02,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:23:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:23:02,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:02,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:23:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:02,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:02,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:02,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:02,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 06:23:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:02,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:02,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:02,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 06:23:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:02,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:02,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:02,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:02,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:02,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:02,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:02,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:02,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:02,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902002525] [2020-09-25 06:23:02,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:02,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:23:02,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423513056] [2020-09-25 06:23:02,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:23:02,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:02,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:23:02,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:23:02,463 INFO L87 Difference]: Start difference. First operand 429 states and 464 transitions. Second operand 7 states. [2020-09-25 06:23:03,067 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:23:06,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:06,766 INFO L93 Difference]: Finished difference Result 1104 states and 1394 transitions. [2020-09-25 06:23:06,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:23:06,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-09-25 06:23:06,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:06,774 INFO L225 Difference]: With dead ends: 1104 [2020-09-25 06:23:06,774 INFO L226 Difference]: Without dead ends: 1101 [2020-09-25 06:23:06,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:23:06,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2020-09-25 06:23:06,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 751. [2020-09-25 06:23:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-09-25 06:23:06,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 832 transitions. [2020-09-25 06:23:06,897 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 832 transitions. Word has length 204 [2020-09-25 06:23:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:06,898 INFO L479 AbstractCegarLoop]: Abstraction has 751 states and 832 transitions. [2020-09-25 06:23:06,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:23:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 832 transitions. [2020-09-25 06:23:06,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-09-25 06:23:06,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:06,905 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 06:23:06,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:23:06,905 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:06,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:06,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1146618426, now seen corresponding path program 1 times [2020-09-25 06:23:06,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:06,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324668214] [2020-09-25 06:23:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:07,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:07,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:07,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:08,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:08,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:08,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking...