/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:59:18,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:59:18,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:59:18,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:59:18,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:59:18,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:59:18,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:59:18,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:59:18,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:59:18,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:59:18,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:59:18,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:59:18,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:59:18,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:59:18,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:59:18,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:59:18,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:59:18,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:59:18,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:59:18,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:59:18,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:59:18,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:59:18,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:59:18,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:59:18,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:59:18,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:59:18,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:59:18,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:59:18,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:59:18,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:59:18,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:59:18,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:59:18,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:59:18,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:59:18,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:59:18,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:59:18,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:59:18,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:59:18,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:59:18,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:59:18,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:59:18,969 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 10:59:19,019 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:59:19,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:59:19,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:59:19,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:59:19,022 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:59:19,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:59:19,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:59:19,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:59:19,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:59:19,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:59:19,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:59:19,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:59:19,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:59:19,026 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:59:19,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:59:19,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:59:19,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:59:19,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:59:19,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:59:19,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:59:19,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:59:19,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:19,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:59:19,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:59:19,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:59:19,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:59:19,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:59:19,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:59:19,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:59:19,029 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:59:19,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:59:19,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:59:19,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:59:19,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:59:19,557 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:59:19,558 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-09-25 10:59:19,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d05b69b3a/b2e089b7bbd14c918bdaab63c3fd7fbc/FLAG4ae486df1 [2020-09-25 10:59:20,262 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:59:20,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-09-25 10:59:20,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d05b69b3a/b2e089b7bbd14c918bdaab63c3fd7fbc/FLAG4ae486df1 [2020-09-25 10:59:20,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d05b69b3a/b2e089b7bbd14c918bdaab63c3fd7fbc [2020-09-25 10:59:20,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:59:20,569 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:59:20,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:20,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:59:20,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:59:20,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:20" (1/1) ... [2020-09-25 10:59:20,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638c4c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:20, skipping insertion in model container [2020-09-25 10:59:20,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:20" (1/1) ... [2020-09-25 10:59:20,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:59:20,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:59:21,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:21,121 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:59:21,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:21,269 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:59:21,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21 WrapperNode [2020-09-25 10:59:21,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:21,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:59:21,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:59:21,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:59:21,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (1/1) ... [2020-09-25 10:59:21,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (1/1) ... [2020-09-25 10:59:21,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (1/1) ... [2020-09-25 10:59:21,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (1/1) ... [2020-09-25 10:59:21,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (1/1) ... [2020-09-25 10:59:21,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (1/1) ... [2020-09-25 10:59:21,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (1/1) ... [2020-09-25 10:59:21,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:59:21,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:59:21,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:59:21,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:59:21,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (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 10:59:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:59:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:59:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:59:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:59:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:59:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:59:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:59:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:59:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:59:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:59:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:59:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:59:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:59:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:59:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:59:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:59:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:59:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:59:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:59:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:59:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:59:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:59:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:59:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:59:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:59:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:59:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:59:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:21,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:59:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:59:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:59:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:59:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:59:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:59:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:59:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:59:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:59:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:59:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:59:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:59:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:59:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:59:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:59:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:59:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:59:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:59:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:59:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:59:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:59:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:59:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:59:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:59:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:59:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:59:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:59:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:59:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:59:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:59:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:59:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:59:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:59:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:59:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:59:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:59:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:59:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:59:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:59:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:59:22,709 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:59:22,709 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:59:22,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:22 BoogieIcfgContainer [2020-09-25 10:59:22,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:59:22,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:59:22,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:59:22,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:59:22,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:59:20" (1/3) ... [2020-09-25 10:59:22,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2870aa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:22, skipping insertion in model container [2020-09-25 10:59:22,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:21" (2/3) ... [2020-09-25 10:59:22,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2870aa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:22, skipping insertion in model container [2020-09-25 10:59:22,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:22" (3/3) ... [2020-09-25 10:59:22,727 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2020-09-25 10:59:22,741 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:59:22,752 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:59:22,778 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:59:22,814 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:59:22,814 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:59:22,814 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:59:22,814 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:59:22,814 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:59:22,815 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:59:22,815 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:59:22,815 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:59:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 10:59:22,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:59:22,861 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:22,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:22,863 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:22,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:22,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1955502520, now seen corresponding path program 1 times [2020-09-25 10:59:22,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:22,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088692208] [2020-09-25 10:59:22,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:23,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:23,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:25,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:26,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:28,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:28,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:59:28,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:59:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 10:59:28,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:28,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:59:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:59:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:59:28,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:59:28,873 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:28,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:28,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:29,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:29,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:29,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:29,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 10:59:29,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:29,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:29,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:29,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:59:29,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:29,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:29,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:29,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:29,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:29,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:59:29,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:29,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:29,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:29,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:29,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:29,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:29,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:29,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:29,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:29,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:29,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:29,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:29,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:29,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:59:29,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:29,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:29,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:29,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:29,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:29,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:29,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:29,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:29,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:29,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:29,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:29,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:29,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:59:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:29,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:29,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:29,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:29,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:59:29,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:29,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:29,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:29,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:59:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:29,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:29,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:29,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:29,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:29,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:29,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:29,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:29,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:29,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:29,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:29,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:29,472 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 10:59:29,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088692208] [2020-09-25 10:59:29,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:29,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:59:29,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777140932] [2020-09-25 10:59:29,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:59:29,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:29,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:59:29,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:59:29,508 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 8 states. [2020-09-25 10:59:30,254 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:31,207 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:31,551 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:59:31,950 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:32,391 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:59:32,724 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:33,114 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:33,431 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:35,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:35,586 INFO L93 Difference]: Finished difference Result 635 states and 783 transitions. [2020-09-25 10:59:35,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:59:35,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:59:35,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:35,636 INFO L225 Difference]: With dead ends: 635 [2020-09-25 10:59:35,636 INFO L226 Difference]: Without dead ends: 440 [2020-09-25 10:59:35,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:59:35,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-09-25 10:59:35,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 394. [2020-09-25 10:59:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-25 10:59:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 449 transitions. [2020-09-25 10:59:35,837 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 449 transitions. Word has length 142 [2020-09-25 10:59:35,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:35,838 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 449 transitions. [2020-09-25 10:59:35,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:59:35,838 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 449 transitions. [2020-09-25 10:59:35,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 10:59:35,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:35,845 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 10:59:35,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:59:35,846 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:35,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:35,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1412835206, now seen corresponding path program 1 times [2020-09-25 10:59:35,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:35,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947930307] [2020-09-25 10:59:35,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:35,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:37,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:40,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:40,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 10:59:40,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:59:40,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 10:59:40,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:40,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:40,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:59:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 10:59:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 10:59:40,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:41,216 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:41,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:41,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:41,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:41,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:41,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 10:59:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:41,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:59:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:41,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:41,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:41,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:41,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:41,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:41,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:41,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:41,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:41,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:41,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:41,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:41,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:41,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:41,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:41,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:41,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:41,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:41,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:41,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:41,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:41,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:41,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:41,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:41,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:41,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:59:41,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:41,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:41,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:41,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:41,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:41,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:41,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:41,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:41,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:41,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:41,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:59:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:41,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:41,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:41,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:59:41,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:41,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:41,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:59:41,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:41,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 10:59:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:41,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:41,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:41,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:41,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:41,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:41,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:41,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:41,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:41,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:41,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:41,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:59:41,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:59:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:41,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:41,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:41,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:41,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:41,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:41,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:41,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:41,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:41,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:41,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:41,669 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 10:59:41,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947930307] [2020-09-25 10:59:41,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:41,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:59:41,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14430056] [2020-09-25 10:59:41,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:59:41,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:41,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:59:41,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:59:41,676 INFO L87 Difference]: Start difference. First operand 394 states and 449 transitions. Second operand 5 states. [2020-09-25 10:59:42,229 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:44,779 INFO L93 Difference]: Finished difference Result 1041 states and 1271 transitions. [2020-09-25 10:59:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:59:44,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 10:59:44,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:44,788 INFO L225 Difference]: With dead ends: 1041 [2020-09-25 10:59:44,789 INFO L226 Difference]: Without dead ends: 757 [2020-09-25 10:59:44,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:59:44,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2020-09-25 10:59:44,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 661. [2020-09-25 10:59:44,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-09-25 10:59:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 767 transitions. [2020-09-25 10:59:44,901 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 767 transitions. Word has length 148 [2020-09-25 10:59:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:44,902 INFO L479 AbstractCegarLoop]: Abstraction has 661 states and 767 transitions. [2020-09-25 10:59:44,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:59:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 767 transitions. [2020-09-25 10:59:44,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 10:59:44,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:44,907 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] [2020-09-25 10:59:44,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:59:44,908 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:44,908 INFO L82 PathProgramCache]: Analyzing trace with hash 492510958, now seen corresponding path program 1 times [2020-09-25 10:59:44,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:44,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494965594] [2020-09-25 10:59:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:45,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:46,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:46,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:46,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 10:59:50,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:59:50,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-09-25 10:59:50,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:59:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:59:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 10:59:50,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,401 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:50,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 10:59:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:59:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:50,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:50,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:50,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:50,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:50,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:50,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:50,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:50,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:50,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:50,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:50,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:50,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:50,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:59:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:59:50,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:59:50,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:59:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:59:50,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 10:59:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:59:50,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:50,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:50,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:59:50,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:59:50,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:59:50,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:50,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:50,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:50,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:59:50,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:50,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 10:59:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:50,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:50,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:50,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 10:59:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:50,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:50,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:50,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:50,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:50,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,911 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 10:59:50,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494965594] [2020-09-25 10:59:50,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:50,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 10:59:50,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303046555] [2020-09-25 10:59:50,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:59:50,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:50,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:59:50,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:59:50,914 INFO L87 Difference]: Start difference. First operand 661 states and 767 transitions. Second operand 13 states. [2020-09-25 10:59:51,541 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:52,551 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:53,895 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:54,299 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:54,911 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:55,281 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:55,833 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:56,178 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:56,655 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:57,059 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:57,408 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:59,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:59,927 INFO L93 Difference]: Finished difference Result 1592 states and 2068 transitions. [2020-09-25 10:59:59,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 10:59:59,928 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 170 [2020-09-25 10:59:59,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:59,938 INFO L225 Difference]: With dead ends: 1592 [2020-09-25 10:59:59,938 INFO L226 Difference]: Without dead ends: 1290 [2020-09-25 10:59:59,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=233, Invalid=889, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 10:59:59,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2020-09-25 11:00:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 912. [2020-09-25 11:00:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-09-25 11:00:00,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1064 transitions. [2020-09-25 11:00:00,116 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1064 transitions. Word has length 170 [2020-09-25 11:00:00,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:00,117 INFO L479 AbstractCegarLoop]: Abstraction has 912 states and 1064 transitions. [2020-09-25 11:00:00,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 11:00:00,117 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1064 transitions. [2020-09-25 11:00:00,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:00:00,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:00,122 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] [2020-09-25 11:00:00,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:00:00,122 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:00,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:00,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1722674350, now seen corresponding path program 1 times [2020-09-25 11:00:00,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:00,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228164030] [2020-09-25 11:00:00,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:00,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:00,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:00,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:00,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 11:00:05,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:00:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 11:00:05,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:00:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:00:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 11:00:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,516 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:05,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:05,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 11:00:05,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:05,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:00:05,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:05,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:05,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:05,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:05,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:05,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:05,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:05,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:05,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:00:05,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:05,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:05,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 11:00:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:05,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:00:05,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:00:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:05,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 11:00:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:00:05,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:05,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:05,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 11:00:05,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:05,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:00:05,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:05,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:05,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:05,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 11:00:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:05,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:05,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:05,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:05,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 11:00:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:05,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:05,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:05,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:05,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:05,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:05,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:05,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:05,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:06,047 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 11:00:06,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228164030] [2020-09-25 11:00:06,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:06,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 11:00:06,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896670955] [2020-09-25 11:00:06,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:00:06,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:06,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:00:06,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:00:06,051 INFO L87 Difference]: Start difference. First operand 912 states and 1064 transitions. Second operand 6 states. [2020-09-25 11:00:06,729 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:07,493 INFO L93 Difference]: Finished difference Result 1235 states and 1487 transitions. [2020-09-25 11:00:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 11:00:07,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-25 11:00:07,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:07,495 INFO L225 Difference]: With dead ends: 1235 [2020-09-25 11:00:07,495 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:00:07,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:00:07,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:00:07,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:00:07,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:00:07,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:00:07,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-25 11:00:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:07,500 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:00:07,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:00:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:00:07,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:00:07,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:00:07,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:00:07,699 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:07,876 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:08,050 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:08,209 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:08,384 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:08,707 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 189