/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=SMALLEST --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_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:56:22,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:56:22,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:56:22,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:56:22,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:56:22,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:56:22,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:56:22,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:56:22,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:56:22,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:56:22,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:56:22,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:56:22,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:56:22,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:56:22,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:56:22,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:56:22,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:56:22,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:56:22,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:56:22,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:56:22,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:56:22,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:56:22,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:56:22,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:56:22,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:56:22,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:56:22,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:56:22,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:56:22,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:56:22,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:56:22,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:56:22,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:56:22,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:56:22,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:56:22,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:56:22,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:56:22,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:56:22,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:56:22,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:56:22,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:56:22,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:56:22,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:56:23,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:56:23,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:56:23,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:56:23,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:56:23,024 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:56:23,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:56:23,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:56:23,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:56:23,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:56:23,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:56:23,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:56:23,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:56:23,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:56:23,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:56:23,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:56:23,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:56:23,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:56:23,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:56:23,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:56:23,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:56:23,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:56:23,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:56:23,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:56:23,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:56:23,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:56:23,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:56:23,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:56:23,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:56:23,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:56:23,031 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 17:56:23,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:56:23,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:56:23,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:56:23,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:56:23,542 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:56:23,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-24 17:56:23,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e09fbfca8/0cd3d8d6dfbc4825b5da7824d7b8fdbd/FLAGde87df873 [2020-09-24 17:56:24,261 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:56:24,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-24 17:56:24,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e09fbfca8/0cd3d8d6dfbc4825b5da7824d7b8fdbd/FLAGde87df873 [2020-09-24 17:56:24,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e09fbfca8/0cd3d8d6dfbc4825b5da7824d7b8fdbd [2020-09-24 17:56:24,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:56:24,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:56:24,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:56:24,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:56:24,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:56:24,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:56:24" (1/1) ... [2020-09-24 17:56:24,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:24, skipping insertion in model container [2020-09-24 17:56:24,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:56:24" (1/1) ... [2020-09-24 17:56:24,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:56:24,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:56:25,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:56:25,063 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:56:25,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:56:25,317 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:56:25,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25 WrapperNode [2020-09-24 17:56:25,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:56:25,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:56:25,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:56:25,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:56:25,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (1/1) ... [2020-09-24 17:56:25,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (1/1) ... [2020-09-24 17:56:25,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (1/1) ... [2020-09-24 17:56:25,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (1/1) ... [2020-09-24 17:56:25,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (1/1) ... [2020-09-24 17:56:25,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (1/1) ... [2020-09-24 17:56:25,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (1/1) ... [2020-09-24 17:56:25,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:56:25,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:56:25,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:56:25,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:56:25,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:56:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:56:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:56:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:56:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:56:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:56:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:56:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:56:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:56:25,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:56:25,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:56:25,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:56:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:56:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:56:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:56:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:56:25,549 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:56:25,549 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:56:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 17:56:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:56:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 17:56:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:56:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:56:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:56:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:56:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:56:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:56:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 17:56:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:56:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:56:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:56:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:56:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:56:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:56:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:56:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:56:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:56:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:56:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:56:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:56:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 17:56:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:56:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:56:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:56:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:56:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:56:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:56:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:56:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:56:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:56:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:56:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:56:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:56:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:56:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:56:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:56:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:56:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:56:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:56:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:56:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:56:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:56:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:56:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:56:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:56:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:56:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:56:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:56:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:56:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:56:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:56:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:56:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:56:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:56:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:56:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:56:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:56:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:56:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 17:56:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:56:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:56:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:56:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:56:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:56:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:56:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 17:56:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 17:56:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 17:56:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:56:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:56:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:56:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:56:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:56:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:56:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:56:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:56:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:56:26,766 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:56:26,766 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:56:26,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:56:26 BoogieIcfgContainer [2020-09-24 17:56:26,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:56:26,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:56:26,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:56:26,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:56:26,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:56:24" (1/3) ... [2020-09-24 17:56:26,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f75efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:56:26, skipping insertion in model container [2020-09-24 17:56:26,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:25" (2/3) ... [2020-09-24 17:56:26,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f75efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:56:26, skipping insertion in model container [2020-09-24 17:56:26,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:56:26" (3/3) ... [2020-09-24 17:56:26,784 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-09-24 17:56:26,797 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:56:26,809 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:56:26,833 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:56:26,869 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:56:26,869 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:56:26,869 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:56:26,869 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:56:26,870 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:56:26,870 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:56:26,870 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:56:26,870 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:56:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-24 17:56:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:56:26,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:26,923 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] [2020-09-24 17:56:26,923 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:26,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:26,932 INFO L82 PathProgramCache]: Analyzing trace with hash 324352486, now seen corresponding path program 1 times [2020-09-24 17:56:26,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:26,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290707462] [2020-09-24 17:56:26,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:27,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:27,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:28,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:29,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:29,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:32,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:32,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:56:32,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:56:32,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-09-24 17:56:32,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:32,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:32,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:56:32,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:32,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 17:56:32,895 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:32,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:32,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:33,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:33,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:33,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:33,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 17:56:33,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:33,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:33,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:33,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:33,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:33,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:33,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:33,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:33,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:33,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:33,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:33,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:33,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:33,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:33,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:33,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:33,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:33,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:33,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:33,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:33,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:33,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:33,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:33,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:33,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:33,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:33,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:56:33,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:33,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:33,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:33,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:33,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:33,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:33,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:33,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:33,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:33,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:33,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:56:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:33,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:33,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:33,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:33,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:33,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:33,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:33,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:33,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:56:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:33,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:33,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:33,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:33,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:33,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:33,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:33,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:33,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290707462] [2020-09-24 17:56:33,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:33,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:56:33,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000494785] [2020-09-24 17:56:33,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:56:33,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:33,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:56:33,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:56:33,257 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 3 states. [2020-09-24 17:56:34,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:34,954 INFO L93 Difference]: Finished difference Result 525 states and 620 transitions. [2020-09-24 17:56:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:56:34,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:56:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:34,983 INFO L225 Difference]: With dead ends: 525 [2020-09-24 17:56:34,983 INFO L226 Difference]: Without dead ends: 321 [2020-09-24 17:56:34,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:56:35,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-24 17:56:35,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278. [2020-09-24 17:56:35,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 17:56:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 302 transitions. [2020-09-24 17:56:35,219 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 302 transitions. Word has length 142 [2020-09-24 17:56:35,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:35,221 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 302 transitions. [2020-09-24 17:56:35,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:56:35,228 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 302 transitions. [2020-09-24 17:56:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:56:35,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:35,244 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] [2020-09-24 17:56:35,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:56:35,245 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:35,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:35,246 INFO L82 PathProgramCache]: Analyzing trace with hash 173272106, now seen corresponding path program 1 times [2020-09-24 17:56:35,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:35,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101190623] [2020-09-24 17:56:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:35,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:35,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:35,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:36,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:36,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:40,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:40,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:56:40,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:56:40,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 17:56:40,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 17:56:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 17:56:40,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:40,679 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:40,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:40,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:40,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:41,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:41,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-24 17:56:41,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:41,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 17:56:41,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:41,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:41,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:41,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:41,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:41,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:41,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:41,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:56:41,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:41,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:41,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:41,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:41,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:41,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:41,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:41,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:56:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:41,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:41,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:41,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:41,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:41,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:41,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:56:41,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:41,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:41,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:41,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:56:41,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:41,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:41,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:41,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:41,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:41,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:41,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:41,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:41,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:41,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:41,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:56:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:41,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:56:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:41,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:41,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:41,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:41,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:41,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:41,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:41,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:56:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:41,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:41,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:41,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:41,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:41,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:41,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:41,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:41,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:41,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:41,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:41,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101190623] [2020-09-24 17:56:41,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:41,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:56:41,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062595151] [2020-09-24 17:56:41,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:56:41,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:41,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:56:41,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:56:41,126 INFO L87 Difference]: Start difference. First operand 278 states and 302 transitions. Second operand 4 states. [2020-09-24 17:56:41,560 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:56:42,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:42,469 INFO L93 Difference]: Finished difference Result 489 states and 561 transitions. [2020-09-24 17:56:42,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:56:42,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:56:42,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:42,475 INFO L225 Difference]: With dead ends: 489 [2020-09-24 17:56:42,475 INFO L226 Difference]: Without dead ends: 321 [2020-09-24 17:56:42,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:56:42,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-24 17:56:42,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278. [2020-09-24 17:56:42,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 17:56:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2020-09-24 17:56:42,527 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 143 [2020-09-24 17:56:42,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:42,527 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2020-09-24 17:56:42,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:56:42,528 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2020-09-24 17:56:42,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 17:56:42,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:42,530 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] [2020-09-24 17:56:42,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:56:42,531 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:42,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:42,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1427031856, now seen corresponding path program 1 times [2020-09-24 17:56:42,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:42,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562289859] [2020-09-24 17:56:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:42,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:42,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:42,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:47,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:47,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 17:56:47,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:56:47,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 17:56:47,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:47,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:47,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:56:47,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:56:47,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:47,890 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:47,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:47,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:48,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 17:56:48,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:48,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:48,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:48,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:48,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:48,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:48,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:48,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:48,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:48,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:56:48,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:48,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:48,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:48,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:48,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:48,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 17:56:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 17:56:48,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:56:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 17:56:48,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 17:56:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:48,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:56:48,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:56:48,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:48,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:48,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:48,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:48,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 17:56:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:48,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:48,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:48,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:56:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:48,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:48,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:48,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:48,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:48,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:48,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:48,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:48,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:48,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:48,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562289859] [2020-09-24 17:56:48,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:48,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:56:48,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948170451] [2020-09-24 17:56:48,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:56:48,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:48,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:56:48,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:56:48,190 INFO L87 Difference]: Start difference. First operand 278 states and 301 transitions. Second operand 5 states. [2020-09-24 17:56:48,897 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:50,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:50,540 INFO L93 Difference]: Finished difference Result 466 states and 529 transitions. [2020-09-24 17:56:50,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:56:50,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 17:56:50,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:50,548 INFO L225 Difference]: With dead ends: 466 [2020-09-24 17:56:50,548 INFO L226 Difference]: Without dead ends: 328 [2020-09-24 17:56:50,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:56:50,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-09-24 17:56:50,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 268. [2020-09-24 17:56:50,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 17:56:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 288 transitions. [2020-09-24 17:56:50,601 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 288 transitions. Word has length 156 [2020-09-24 17:56:50,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:50,602 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 288 transitions. [2020-09-24 17:56:50,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:56:50,602 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 288 transitions. [2020-09-24 17:56:50,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-24 17:56:50,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:50,605 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] [2020-09-24 17:56:50,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:56:50,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:50,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:50,606 INFO L82 PathProgramCache]: Analyzing trace with hash 2053095868, now seen corresponding path program 1 times [2020-09-24 17:56:50,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:50,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772230240] [2020-09-24 17:56:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:50,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:51,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:53,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:53,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:53,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:55,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:55,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 17:56:55,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 17:56:55,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-24 17:56:55,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 17:56:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:56:55,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:56,007 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:56,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:56,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 17:56:56,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:56,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:56,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:56,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:56,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:56,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:56,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:56,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:56,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:56,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:56,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:56,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:56,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:56,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:56,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:56,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:56,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:56,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:56,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:56,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:56,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:56,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 17:56:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 17:56:56,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:56:56,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:56,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 17:56:56,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:56:56,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:56,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:56:56,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:56:56,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:56:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:56:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:56,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:56,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:56:56,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:56:56,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:56,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 17:56:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:56,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:56,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:56,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:56,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:56,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:56,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 17:56:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:56,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:56,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:56,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:56,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:56,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:56,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:56,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:56,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:56,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772230240] [2020-09-24 17:56:56,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:56,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:56:56,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133536491] [2020-09-24 17:56:56,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:56:56,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:56,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:56:56,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:56:56,327 INFO L87 Difference]: Start difference. First operand 268 states and 288 transitions. Second operand 6 states. [2020-09-24 17:56:56,826 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:58,355 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:59,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:59,319 INFO L93 Difference]: Finished difference Result 593 states and 675 transitions. [2020-09-24 17:56:59,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:56:59,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-24 17:56:59,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:59,328 INFO L225 Difference]: With dead ends: 593 [2020-09-24 17:56:59,329 INFO L226 Difference]: Without dead ends: 435 [2020-09-24 17:56:59,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:56:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-24 17:56:59,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 376. [2020-09-24 17:56:59,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-09-24 17:56:59,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 405 transitions. [2020-09-24 17:56:59,391 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 405 transitions. Word has length 165 [2020-09-24 17:56:59,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:59,392 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 405 transitions. [2020-09-24 17:56:59,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:56:59,392 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 405 transitions. [2020-09-24 17:56:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 17:56:59,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:59,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:59,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:56:59,395 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:59,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:59,396 INFO L82 PathProgramCache]: Analyzing trace with hash 2027625623, now seen corresponding path program 1 times [2020-09-24 17:56:59,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:59,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338219422] [2020-09-24 17:56:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:59,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:01,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:01,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:04,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:04,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 17:57:04,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:57:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 17:57:04,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:57:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 17:57:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 17:57:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:04,819 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:57:04,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:57:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:04,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:04,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:04,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:57:04,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:04,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 17:57:04,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:04,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:04,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:04,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:04,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:57:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:04,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:04,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:04,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:04,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:04,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:04,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:57:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:04,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:04,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:04,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:57:04,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:04,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:04,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:57:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:04,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:04,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:04,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:04,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:57:04,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:04,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:04,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:57:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:05,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:05,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:05,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:05,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:05,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:05,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 17:57:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:05,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:05,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 17:57:05,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:57:05,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 17:57:05,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:57:05,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:05,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:57:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:05,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:05,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 17:57:05,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:57:05,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:57:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:05,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:57:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:05,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:05,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:57:05,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:05,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 17:57:05,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:05,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 17:57:05,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:05,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:57:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:05,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:05,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:57:05,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:05,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:57:05,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:05,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:05,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:05,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:05,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:57:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:05,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:05,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:05,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:57:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:05,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 17:57:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:05,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:05,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:05,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:05,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:57:05,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:57:05,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:05,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 17:57:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:05,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:05,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:05,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:57:05,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:57:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:57:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:57:05,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338219422] [2020-09-24 17:57:05,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:57:05,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:57:05,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391219757] [2020-09-24 17:57:05,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:57:05,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:57:05,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:57:05,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:57:05,236 INFO L87 Difference]: Start difference. First operand 376 states and 405 transitions. Second operand 9 states. [2020-09-24 17:57:05,751 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:57:07,419 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:57:07,737 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:57:08,114 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:57:09,180 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:57:09,544 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:57:09,871 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:57:10,201 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190