/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:23:15,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:23:15,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:23:15,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:23:15,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:23:15,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:23:15,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:23:15,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:23:15,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:23:15,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:23:15,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:23:15,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:23:15,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:23:15,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:23:15,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:23:15,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:23:15,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:23:15,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:23:15,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:23:15,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:23:15,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:23:15,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:23:15,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:23:15,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:23:15,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:23:15,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:23:15,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:23:15,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:23:15,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:23:15,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:23:15,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:23:15,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:23:15,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:23:15,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:23:15,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:23:15,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:23:15,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:23:15,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:23:15,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:23:15,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:23:15,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:23:15,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:23:15,995 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:23:15,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:23:15,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:23:15,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:23:15,997 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:23:15,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:23:15,998 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:23:15,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:23:15,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:23:15,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:23:15,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:23:15,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:23:15,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:23:15,999 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:23:15,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:23:16,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:23:16,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:23:16,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:23:16,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:23:16,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:23:16,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:23:16,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:23:16,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:23:16,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:23:16,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:23:16,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:23:16,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:23:16,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:23:16,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:23:16,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:23:16,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:23:16,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:23:16,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:23:16,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:23:16,520 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:23:16,521 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-09-25 06:23:16,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a2a94fa/c876af88898643e091ebf3b9d8b35367/FLAG0bac2ba1d [2020-09-25 06:23:17,296 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:23:17,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-09-25 06:23:17,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a2a94fa/c876af88898643e091ebf3b9d8b35367/FLAG0bac2ba1d [2020-09-25 06:23:17,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a2a94fa/c876af88898643e091ebf3b9d8b35367 [2020-09-25 06:23:17,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:23:17,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:23:17,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:23:17,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:23:17,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:23:17,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:17" (1/1) ... [2020-09-25 06:23:17,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bee2e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:17, skipping insertion in model container [2020-09-25 06:23:17,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:17" (1/1) ... [2020-09-25 06:23:17,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:23:17,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:23:18,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:23:18,180 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:23:18,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:23:18,369 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:23:18,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18 WrapperNode [2020-09-25 06:23:18,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:23:18,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:23:18,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:23:18,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:23:18,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (1/1) ... [2020-09-25 06:23:18,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (1/1) ... [2020-09-25 06:23:18,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (1/1) ... [2020-09-25 06:23:18,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (1/1) ... [2020-09-25 06:23:18,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (1/1) ... [2020-09-25 06:23:18,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (1/1) ... [2020-09-25 06:23:18,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (1/1) ... [2020-09-25 06:23:18,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:23:18,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:23:18,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:23:18,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:23:18,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:23:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:23:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:23:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:23:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:23:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:23:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:23:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:23:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:23:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:23:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:23:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:23:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:23:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:23:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 06:23:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:23:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:23:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:23:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:23:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:23:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:23:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:23:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:23:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:23:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:23:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:23:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:23:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:23:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:23:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:23:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:23:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:23:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:23:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:23:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:23:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:23:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:23:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:23:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:23:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:23:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:23:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:23:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:23:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:23:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:23:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 06:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:23:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:23:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:23:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:23:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:23:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:23:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:23:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:23:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:23:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:23:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:23:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:23:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:23:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:23:19,802 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:23:19,802 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:23:19,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:19 BoogieIcfgContainer [2020-09-25 06:23:19,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:23:19,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:23:19,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:23:19,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:23:19,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:23:17" (1/3) ... [2020-09-25 06:23:19,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d08ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:19, skipping insertion in model container [2020-09-25 06:23:19,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:18" (2/3) ... [2020-09-25 06:23:19,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d08ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:19, skipping insertion in model container [2020-09-25 06:23:19,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:19" (3/3) ... [2020-09-25 06:23:19,825 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-09-25 06:23:19,837 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:23:19,847 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:23:19,869 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:23:19,902 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:23:19,902 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:23:19,902 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:23:19,902 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:23:19,902 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:23:19,902 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:23:19,902 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:23:19,903 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:23:19,930 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 06:23:19,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 06:23:19,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:19,951 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] [2020-09-25 06:23:19,952 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:19,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:19,960 INFO L82 PathProgramCache]: Analyzing trace with hash -2023786864, now seen corresponding path program 1 times [2020-09-25 06:23:19,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:19,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936647151] [2020-09-25 06:23:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:20,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:20,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:22,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:25,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:25,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:23:25,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:25,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 06:23:25,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:25,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:23:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:23:25,865 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:25,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:25,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:26,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:26,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:26,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 06:23:26,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:26,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:26,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:26,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:26,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:26,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:26,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:26,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:26,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:26,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:26,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:26,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:26,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:26,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:26,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:26,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:26,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:26,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:26,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:26,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:26,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:26,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:26,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:26,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:26,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:26,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:26,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:26,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:26,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:26,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:26,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:26,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:26,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:26,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:26,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:26,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:26,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:26,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:26,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:26,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:26,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:26,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:26,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:26,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:23:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:26,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:26,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:26,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:26,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:26,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:26,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:26,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:26,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:26,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:26,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:23:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:26,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:26,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:26,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:26,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:26,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:26,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:26,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:23:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:26,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:26,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:26,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:26,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:26,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:26,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:26,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:26,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936647151] [2020-09-25 06:23:26,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:26,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:23:26,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274432549] [2020-09-25 06:23:26,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:23:26,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:26,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:23:26,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:23:26,267 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-09-25 06:23:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:27,750 INFO L93 Difference]: Finished difference Result 491 states and 589 transitions. [2020-09-25 06:23:27,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:23:27,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 06:23:27,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:27,787 INFO L225 Difference]: With dead ends: 491 [2020-09-25 06:23:27,788 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 06:23:27,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:23:27,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 06:23:27,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-09-25 06:23:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 06:23:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 286 transitions. [2020-09-25 06:23:27,942 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 286 transitions. Word has length 153 [2020-09-25 06:23:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:27,943 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 286 transitions. [2020-09-25 06:23:27,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:23:27,943 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 286 transitions. [2020-09-25 06:23:27,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 06:23:27,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:27,949 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] [2020-09-25 06:23:27,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:23:27,950 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:27,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:27,950 INFO L82 PathProgramCache]: Analyzing trace with hash 936864637, now seen corresponding path program 1 times [2020-09-25 06:23:27,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:27,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233795621] [2020-09-25 06:23:27,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:29,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:23:33,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:33,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 06:23:33,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:33,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:23:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:23:33,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,351 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:33,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:33,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 06:23:33,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:33,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:33,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:33,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:33,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:33,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:33,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:33,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:33,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:33,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:33,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:33,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 06:23:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:33,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:33,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:23:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:33,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:33,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:23:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:33,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:33,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 06:23:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:33,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233795621] [2020-09-25 06:23:33,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:33,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:23:33,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245795889] [2020-09-25 06:23:33,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:23:33,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:33,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:23:33,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:23:33,683 INFO L87 Difference]: Start difference. First operand 261 states and 286 transitions. Second operand 4 states. [2020-09-25 06:23:34,498 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:23:35,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:35,566 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2020-09-25 06:23:35,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:23:35,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 06:23:35,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:35,572 INFO L225 Difference]: With dead ends: 402 [2020-09-25 06:23:35,572 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 06:23:35,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:23:35,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 06:23:35,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-09-25 06:23:35,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-25 06:23:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 273 transitions. [2020-09-25 06:23:35,655 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 273 transitions. Word has length 154 [2020-09-25 06:23:35,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:35,659 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 273 transitions. [2020-09-25 06:23:35,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:23:35,659 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2020-09-25 06:23:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 06:23:35,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:35,671 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] [2020-09-25 06:23:35,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:23:35,671 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:35,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:35,672 INFO L82 PathProgramCache]: Analyzing trace with hash -367935570, now seen corresponding path program 1 times [2020-09-25 06:23:35,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:35,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934664141] [2020-09-25 06:23:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:39,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:39,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 06:23:39,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:23:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3704 [2020-09-25 06:23:39,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:39,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:39,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:23:39,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 06:23:39,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:23:39,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:39,810 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:39,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:39,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:40,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 06:23:40,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:23:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:40,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:23:40,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:40,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:40,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:40,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:40,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:23:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:40,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:40,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 50 [2020-09-25 06:23:40,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:23:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:40,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 06:23:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:40,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:40,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934664141] [2020-09-25 06:23:40,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:40,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:23:40,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78994259] [2020-09-25 06:23:40,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:23:40,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:40,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:23:40,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:23:40,299 INFO L87 Difference]: Start difference. First operand 251 states and 273 transitions. Second operand 4 states. [2020-09-25 06:23:40,823 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:42,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:42,681 INFO L93 Difference]: Finished difference Result 581 states and 670 transitions. [2020-09-25 06:23:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:23:42,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 06:23:42,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:42,686 INFO L225 Difference]: With dead ends: 581 [2020-09-25 06:23:42,686 INFO L226 Difference]: Without dead ends: 440 [2020-09-25 06:23:42,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:23:42,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-09-25 06:23:42,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 386. [2020-09-25 06:23:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-25 06:23:42,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 431 transitions. [2020-09-25 06:23:42,751 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 431 transitions. Word has length 163 [2020-09-25 06:23:42,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:42,752 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 431 transitions. [2020-09-25 06:23:42,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:23:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 431 transitions. [2020-09-25 06:23:42,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 06:23:42,756 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:42,756 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] [2020-09-25 06:23:42,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:23:42,756 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:42,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:42,757 INFO L82 PathProgramCache]: Analyzing trace with hash 586608814, now seen corresponding path program 1 times [2020-09-25 06:23:42,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:42,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864556491] [2020-09-25 06:23:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:42,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:23:44,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1642 [2020-09-25 06:23:44,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:23:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 06:23:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 06:23:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:44,942 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:44,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:45,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 06:23:45,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:45,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:45,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 06:23:45,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:45,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:45,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:45,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:45,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:45,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:45,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:45,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:45,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:45,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:23:45,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:45,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:45,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:45,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:45,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:23:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:23:45,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:45,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:45,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:45,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:23:45,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:23:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:45,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:45,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:23:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:45,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:23:45,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:23:45,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:45,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:45,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:23:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:45,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:45,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:45,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:45,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:45,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:45,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:45,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:45,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:45,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:45,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:45,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864556491] [2020-09-25 06:23:45,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:45,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:23:45,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483408196] [2020-09-25 06:23:45,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:23:45,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:45,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:23:45,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:23:45,428 INFO L87 Difference]: Start difference. First operand 386 states and 431 transitions. Second operand 10 states. [2020-09-25 06:23:45,947 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:48,047 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:23:48,394 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:48,773 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:49,144 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:49,463 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:23:49,802 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:23:50,106 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:50,552 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:23:51,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:51,468 INFO L93 Difference]: Finished difference Result 1041 states and 1263 transitions. [2020-09-25 06:23:51,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:23:51,469 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 06:23:51,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:51,475 INFO L225 Difference]: With dead ends: 1041 [2020-09-25 06:23:51,475 INFO L226 Difference]: Without dead ends: 765 [2020-09-25 06:23:51,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:23:51,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-09-25 06:23:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 659. [2020-09-25 06:23:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-09-25 06:23:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 759 transitions. [2020-09-25 06:23:51,580 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 759 transitions. Word has length 172 [2020-09-25 06:23:51,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:51,581 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 759 transitions. [2020-09-25 06:23:51,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:23:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 759 transitions. [2020-09-25 06:23:51,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 06:23:51,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:51,586 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] [2020-09-25 06:23:51,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:23:51,587 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:51,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:51,588 INFO L82 PathProgramCache]: Analyzing trace with hash 95529110, now seen corresponding path program 1 times [2020-09-25 06:23:51,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:51,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809425059] [2020-09-25 06:23:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:23:51,652 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:23:51,652 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:23:51,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:23:51,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:23:51 BoogieIcfgContainer [2020-09-25 06:23:51,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:23:51,688 INFO L168 Benchmark]: Toolchain (without parser) took 34118.31 ms. Allocated memory was 146.3 MB in the beginning and 602.9 MB in the end (delta: 456.7 MB). Free memory was 101.5 MB in the beginning and 135.9 MB in the end (delta: -34.4 MB). Peak memory consumption was 422.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:51,689 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:23:51,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.37 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.9 MB in the beginning and 170.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:51,691 INFO L168 Benchmark]: Boogie Preprocessor took 113.74 ms. Allocated memory is still 202.4 MB. Free memory was 170.2 MB in the beginning and 165.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:51,692 INFO L168 Benchmark]: RCFGBuilder took 1331.61 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.5 MB in the beginning and 174.0 MB in the end (delta: -8.6 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:51,693 INFO L168 Benchmark]: TraceAbstraction took 31868.93 ms. Allocated memory was 235.4 MB in the beginning and 602.9 MB in the end (delta: 367.5 MB). Free memory was 174.0 MB in the beginning and 135.9 MB in the end (delta: 38.1 MB). Peak memory consumption was 405.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:51,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.37 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.9 MB in the beginning and 170.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.74 ms. Allocated memory is still 202.4 MB. Free memory was 170.2 MB in the beginning and 165.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1331.61 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.5 MB in the beginning and 174.0 MB in the end (delta: -8.6 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31868.93 ms. Allocated memory was 235.4 MB in the beginning and 602.9 MB in the end (delta: 367.5 MB). Free memory was 174.0 MB in the beginning and 135.9 MB in the end (delta: 38.1 MB). Peak memory consumption was 405.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 541]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L177] int pumpRunning = 0; [L178] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L514] int retValue_acc ; [L515] int tmp ; [L519] FCALL select_helpers() [L520] FCALL select_features() [L521] CALL, EXPR valid_product() [L938] int retValue_acc ; [L941] retValue_acc = 1 [L942] return (retValue_acc); [L521] RET, EXPR valid_product() [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) [L525] FCALL setup() [L526] CALL runTest() [L505] CALL test() [L372] int splverifierCounter ; [L373] int tmp ; [L374] int tmp___0 ; [L375] int tmp___1 ; [L376] int tmp___2 ; [L379] splverifierCounter = 0 [L381] COND TRUE 1 [L383] COND TRUE splverifierCounter < 4 [L389] tmp = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp) [L393] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L393] RET waterRise() [L399] tmp___0 = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp___0)) [L409] tmp___2 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___2)) [L415] tmp___1 = __VERIFIER_nondet_int() [L417] COND TRUE \read(tmp___1) [L419] CALL stopSystem() [L358] COND FALSE !(\read(pumpRunning)) [L365] systemActive = 0 [L419] RET stopSystem() [L426] CALL timeShift() [L184] COND FALSE !(\read(pumpRunning)) [L191] COND FALSE !(\read(systemActive)) [L199] CALL __utac_acc__Specification3_spec__1() [L139] int tmp ; [L140] int tmp___0 ; [L141] int tmp___1 ; [L145] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L145] RET, EXPR isMethaneLevelCritical() [L145] tmp = isMethaneLevelCritical() [L147] COND FALSE !(\read(tmp)) [L151] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L151] RET, EXPR getWaterLevel() [L151] tmp___0 = getWaterLevel() [L153] COND TRUE tmp___0 == 2 [L155] CALL, EXPR isPumpRunning() [L291] int retValue_acc ; [L294] retValue_acc = pumpRunning [L295] return (retValue_acc); [L155] RET, EXPR isPumpRunning() [L155] tmp___1 = isPumpRunning() [L157] COND FALSE !(\read(tmp___1)) [L161] CALL __automaton_fail() [L541] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1004 SDtfs, 1267 SDslu, 804 SDs, 0 SdLazy, 2163 SolverSat, 453 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 239 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.5s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 264985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...