/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 SequenceOfStatements --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=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:11:56,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:11:56,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:11:56,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:11:56,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:11:56,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:11:56,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:11:56,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:11:56,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:11:56,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:11:56,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:11:56,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:11:56,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:11:56,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:11:56,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:11:56,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:11:56,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:11:56,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:11:56,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:11:56,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:11:56,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:11:56,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:11:56,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:11:56,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:11:56,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:11:56,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:11:56,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:11:56,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:11:56,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:11:56,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:11:56,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:11:56,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:11:56,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:11:56,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:11:56,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:11:56,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:11:56,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:11:56,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:11:56,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:11:56,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:11:56,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:11:56,480 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 [2020-10-14 07:11:56,518 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:11:56,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:11:56,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:11:56,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:11:56,521 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:11:56,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:11:56,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:11:56,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:11:56,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:11:56,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:11:56,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:11:56,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:11:56,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:11:56,524 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:11:56,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:11:56,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:11:56,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:11:56,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:11:56,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:11:56,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:11:56,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:11:56,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:11:56,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:11:56,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:11:56,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:11:56,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:11:56,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:11:56,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:11:56,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:11:56,527 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 -> SequenceOfStatements 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:11:56,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:11:56,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:11:56,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:11:56,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:11:56,830 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:11:56,830 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-10-14 07:11:56,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc53055f3/d0261786269b4138a63e8809081cbbdd/FLAG9ec967d1c [2020-10-14 07:11:57,413 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:11:57,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-10-14 07:11:57,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc53055f3/d0261786269b4138a63e8809081cbbdd/FLAG9ec967d1c [2020-10-14 07:11:57,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc53055f3/d0261786269b4138a63e8809081cbbdd [2020-10-14 07:11:57,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:11:57,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:11:57,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:11:57,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:11:57,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:11:57,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:11:57" (1/1) ... [2020-10-14 07:11:57,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:57, skipping insertion in model container [2020-10-14 07:11:57,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:11:57" (1/1) ... [2020-10-14 07:11:57,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:11:57,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:11:58,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:11:58,196 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:11:58,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:11:58,482 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:11:58,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58 WrapperNode [2020-10-14 07:11:58,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:11:58,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:11:58,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:11:58,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:11:58,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (1/1) ... [2020-10-14 07:11:58,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (1/1) ... [2020-10-14 07:11:58,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (1/1) ... [2020-10-14 07:11:58,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (1/1) ... [2020-10-14 07:11:58,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (1/1) ... [2020-10-14 07:11:58,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (1/1) ... [2020-10-14 07:11:58,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (1/1) ... [2020-10-14 07:11:58,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:11:58,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:11:58,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:11:58,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:11:58,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (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 [2020-10-14 07:11:58,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:11:58,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:11:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:11:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:11:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:11:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:11:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:11:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:11:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:11:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:11:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:11:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:11:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:11:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:11:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:11:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:11:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:11:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:11:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:11:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:11:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:11:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:11:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:11:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:11:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:11:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-14 07:11:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-14 07:11:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:11:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:11:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:11:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-14 07:11:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:11:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:11:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:11:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:11:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:11:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:11:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-14 07:11:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-14 07:11:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-14 07:11:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-14 07:11:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:11:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:11:58,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:11:58,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:11:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:11:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:11:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:11:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:11:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:11:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:11:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:11:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:11:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:11:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:11:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:11:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:11:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:11:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:11:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:11:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:11:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:11:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:11:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:11:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:11:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:11:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:11:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:11:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:11:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:11:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:11:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:11:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:11:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:11:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:11:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:11:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:11:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:11:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:11:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:11:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:11:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:11:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:11:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:11:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-14 07:11:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-14 07:11:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:11:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:11:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-14 07:11:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-14 07:11:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:11:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:11:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-14 07:11:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:11:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-14 07:11:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-14 07:11:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:11:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:11:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:11:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:11:59,781 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:11:59,781 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:11:59,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:11:59 BoogieIcfgContainer [2020-10-14 07:11:59,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:11:59,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:11:59,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:11:59,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:11:59,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:11:57" (1/3) ... [2020-10-14 07:11:59,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756c84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:11:59, skipping insertion in model container [2020-10-14 07:11:59,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:58" (2/3) ... [2020-10-14 07:11:59,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756c84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:11:59, skipping insertion in model container [2020-10-14 07:11:59,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:11:59" (3/3) ... [2020-10-14 07:11:59,795 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-10-14 07:11:59,805 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:11:59,813 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:11:59,828 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:11:59,852 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:11:59,853 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:11:59,853 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:11:59,853 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:11:59,853 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:11:59,853 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:11:59,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:11:59,854 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:11:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-10-14 07:11:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:11:59,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:59,890 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] [2020-10-14 07:11:59,891 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:59,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:59,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1135361186, now seen corresponding path program 1 times [2020-10-14 07:11:59,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:59,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250576392] [2020-10-14 07:11:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:00,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:00,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:01,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:02,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:02,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 07:12:02,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:12:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2136 [2020-10-14 07:12:02,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:02,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-14 07:12:02,812 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:02,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:02,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:02,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:02,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:02,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 07:12:02,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:02,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:02,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:02,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:02,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:02,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:02,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:02,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:02,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:02,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:02,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:02,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:02,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:02,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:02,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:02,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:02,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:02,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:02,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:02,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:02,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:02,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:02,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:02,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:02,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:02,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:02,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:02,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:02,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:02,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:02,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:02,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:02,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:02,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:02,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:02,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:02,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:02,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:02,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:02,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:02,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:12:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:02,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:02,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:02,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:02,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:02,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:02,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:02,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:02,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:02,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:02,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:12:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:02,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:02,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:02,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:02,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:02,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:02,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:03,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:12:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:03,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:03,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:03,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:03,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:03,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:03,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:03,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:12:03,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250576392] [2020-10-14 07:12:03,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:03,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:12:03,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346294272] [2020-10-14 07:12:03,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:12:03,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:03,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:12:03,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:12:03,060 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 3 states. [2020-10-14 07:12:04,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:04,568 INFO L93 Difference]: Finished difference Result 364 states and 474 transitions. [2020-10-14 07:12:04,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:12:04,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-14 07:12:04,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:04,587 INFO L225 Difference]: With dead ends: 364 [2020-10-14 07:12:04,587 INFO L226 Difference]: Without dead ends: 196 [2020-10-14 07:12:04,593 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 [2020-10-14 07:12:04,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-14 07:12:04,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 159. [2020-10-14 07:12:04,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-14 07:12:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2020-10-14 07:12:04,706 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 52 [2020-10-14 07:12:04,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:04,707 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2020-10-14 07:12:04,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:12:04,708 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2020-10-14 07:12:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:12:04,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:04,712 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] [2020-10-14 07:12:04,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:12:04,712 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:04,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:04,713 INFO L82 PathProgramCache]: Analyzing trace with hash 117273538, now seen corresponding path program 1 times [2020-10-14 07:12:04,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:04,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856209787] [2020-10-14 07:12:04,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:04,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:04,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:05,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:06,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:06,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:12:06,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:12:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2198 [2020-10-14 07:12:06,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:06,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:12:06,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:12:06,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,222 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:07,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:07,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:07,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:07,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:07,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:07,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 07:12:07,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:07,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:07,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:07,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:07,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:07,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:07,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:07,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:07,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:07,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:07,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:07,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:07,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:07,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:07,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:07,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:07,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:07,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:07,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:07,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:07,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:07,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:07,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:07,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:07,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:07,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:07,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:07,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:07,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:07,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:07,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:07,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:07,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:07,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:07,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:12:07,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:07,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:12:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:07,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:07,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:07,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:07,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:07,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:07,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:07,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:07,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:07,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:12:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:07,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:07,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:07,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:07,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:07,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:07,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:07,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:07,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 07:12:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:07,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:07,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:07,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:07,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:07,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:07,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:07,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:12:07,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856209787] [2020-10-14 07:12:07,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:07,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:12:07,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758340224] [2020-10-14 07:12:07,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:12:07,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:07,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:12:07,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:12:07,317 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand 4 states. [2020-10-14 07:12:07,785 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:12:08,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:08,784 INFO L93 Difference]: Finished difference Result 287 states and 353 transitions. [2020-10-14 07:12:08,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:12:08,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 07:12:08,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:08,789 INFO L225 Difference]: With dead ends: 287 [2020-10-14 07:12:08,789 INFO L226 Difference]: Without dead ends: 180 [2020-10-14 07:12:08,791 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 [2020-10-14 07:12:08,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-14 07:12:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 150. [2020-10-14 07:12:08,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-14 07:12:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2020-10-14 07:12:08,840 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 53 [2020-10-14 07:12:08,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:08,841 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2020-10-14 07:12:08,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:12:08,841 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2020-10-14 07:12:08,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 07:12:08,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:08,843 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] [2020-10-14 07:12:08,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:12:08,844 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:08,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:08,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1326355153, now seen corresponding path program 1 times [2020-10-14 07:12:08,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:08,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315292151] [2020-10-14 07:12:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:08,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:09,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:09,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:09,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 07:12:09,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:12:09,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-10-14 07:12:09,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:09,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:09,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:12:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 07:12:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:10,178 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:10,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:10,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:10,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:10,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:10,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 07:12:10,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:10,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:12:10,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:10,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:10,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:10,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:10,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:10,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:10,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:10,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:10,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:10,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:10,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:10,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:10,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:10,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:10,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:10,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:10,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:10,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:10,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:10,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:10,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:10,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:10,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:10,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:10,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:10,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:10,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:10,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:10,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:10,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:10,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:10,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:10,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:10,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:10,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:10,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:10,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:10,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:10,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:10,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:10,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:12:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:10,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:10,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:10,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:10,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:10,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:10,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:10,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:10,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:10,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:10,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:10,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:10,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:12:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:10,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:10,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:10,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:10,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:10,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:10,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:10,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:10,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:10,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:10,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:10,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:10,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:12:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:10,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:10,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:10,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:10,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:10,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:10,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:10,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:10,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:10,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:10,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:10,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:12:10,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315292151] [2020-10-14 07:12:10,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:10,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:12:10,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739239711] [2020-10-14 07:12:10,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:12:10,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:10,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:12:10,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:12:10,350 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand 4 states. [2020-10-14 07:12:10,717 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:12:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:12,556 INFO L93 Difference]: Finished difference Result 446 states and 553 transitions. [2020-10-14 07:12:12,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:12:12,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-14 07:12:12,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:12,568 INFO L225 Difference]: With dead ends: 446 [2020-10-14 07:12:12,568 INFO L226 Difference]: Without dead ends: 320 [2020-10-14 07:12:12,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:12:12,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-14 07:12:12,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 266. [2020-10-14 07:12:12,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-14 07:12:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 321 transitions. [2020-10-14 07:12:12,655 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 321 transitions. Word has length 58 [2020-10-14 07:12:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:12,656 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 321 transitions. [2020-10-14 07:12:12,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:12:12,656 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 321 transitions. [2020-10-14 07:12:12,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 07:12:12,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:12,659 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] [2020-10-14 07:12:12,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:12:12,660 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:12,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:12,660 INFO L82 PathProgramCache]: Analyzing trace with hash -962527068, now seen corresponding path program 1 times [2020-10-14 07:12:12,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:12,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953403232] [2020-10-14 07:12:12,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:12,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 07:12:13,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-10-14 07:12:13,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:12:13,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:13,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:12:13,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:13,756 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:13,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:13,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 07:12:13,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:13,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:13,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:12:13,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:13,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:13,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:13,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:13,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:13,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:13,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:13,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:13,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:13,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:13,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:13,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:12:13,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:13,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:13,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:13,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:13,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:12:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:12:13,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:13,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:12:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:13,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:12:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:13,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:13,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:13,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:13,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:12:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:13,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:13,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:12:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:13,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:13,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 07:12:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:13,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:13,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:13,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:13,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:13,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:13,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:13,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:13,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:13,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:13,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:12:13,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953403232] [2020-10-14 07:12:13,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:13,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:12:13,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417674707] [2020-10-14 07:12:13,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:12:13,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:13,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:12:13,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:12:13,987 INFO L87 Difference]: Start difference. First operand 266 states and 321 transitions. Second operand 8 states. [2020-10-14 07:12:14,435 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:12:15,889 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:12:16,290 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:12:16,593 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:12:16,869 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:12:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:17,989 INFO L93 Difference]: Finished difference Result 829 states and 1086 transitions. [2020-10-14 07:12:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:12:17,990 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-14 07:12:17,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:17,999 INFO L225 Difference]: With dead ends: 829 [2020-10-14 07:12:18,000 INFO L226 Difference]: Without dead ends: 587 [2020-10-14 07:12:18,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:12:18,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-14 07:12:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 515. [2020-10-14 07:12:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-10-14 07:12:18,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 633 transitions. [2020-10-14 07:12:18,127 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 633 transitions. Word has length 63 [2020-10-14 07:12:18,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:18,128 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 633 transitions. [2020-10-14 07:12:18,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:12:18,128 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 633 transitions. [2020-10-14 07:12:18,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:12:18,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:18,131 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] [2020-10-14 07:12:18,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:12:18,132 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:18,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:18,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1452482678, now seen corresponding path program 1 times [2020-10-14 07:12:18,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:18,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871755311] [2020-10-14 07:12:18,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:20,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:12:23,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:12:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 07:12:23,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:12:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 07:12:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 07:12:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,470 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:23,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:12:23,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:23,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:12:23,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:23,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:12:23,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:23,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:12:23,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:23,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:12:23,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:12:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:12:23,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:23,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 07:12:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:23,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 07:12:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:23,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:23,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:12:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:23,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:12:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:23,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:12:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:12:23,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871755311] [2020-10-14 07:12:23,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:23,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:12:23,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141967630] [2020-10-14 07:12:23,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:12:23,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:23,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:12:23,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:12:23,622 INFO L87 Difference]: Start difference. First operand 515 states and 633 transitions. Second operand 9 states. [2020-10-14 07:12:24,434 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:12:25,826 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:12:26,074 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-14 07:12:26,476 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-14 07:12:26,807 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-14 07:12:27,072 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:12:28,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:28,500 INFO L93 Difference]: Finished difference Result 1390 states and 1856 transitions. [2020-10-14 07:12:28,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:12:28,501 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 07:12:28,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:28,510 INFO L225 Difference]: With dead ends: 1390 [2020-10-14 07:12:28,510 INFO L226 Difference]: Without dead ends: 899 [2020-10-14 07:12:28,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:12:28,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2020-10-14 07:12:28,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 785. [2020-10-14 07:12:28,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-10-14 07:12:28,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 958 transitions. [2020-10-14 07:12:28,705 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 958 transitions. Word has length 67 [2020-10-14 07:12:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:28,706 INFO L479 AbstractCegarLoop]: Abstraction has 785 states and 958 transitions. [2020-10-14 07:12:28,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:12:28,706 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 958 transitions. [2020-10-14 07:12:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:12:28,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:28,710 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] [2020-10-14 07:12:28,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:12:28,710 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:28,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:28,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1151554506, now seen corresponding path program 1 times [2020-10-14 07:12:28,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:28,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506323302] [2020-10-14 07:12:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:12:28,776 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:12:28,776 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:12:28,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:12:28,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:12:28 BoogieIcfgContainer [2020-10-14 07:12:28,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:12:28,814 INFO L168 Benchmark]: Toolchain (without parser) took 31067.48 ms. Allocated memory was 147.8 MB in the beginning and 691.5 MB in the end (delta: 543.7 MB). Free memory was 102.0 MB in the beginning and 641.6 MB in the end (delta: -539.6 MB). Peak memory consumption was 527.6 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:28,815 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.7 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 07:12:28,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.42 ms. Allocated memory was 147.8 MB in the beginning and 206.6 MB in the end (delta: 58.7 MB). Free memory was 101.5 MB in the beginning and 174.9 MB in the end (delta: -73.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:28,817 INFO L168 Benchmark]: Boogie Preprocessor took 92.50 ms. Allocated memory is still 206.6 MB. Free memory was 174.9 MB in the beginning and 171.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:28,818 INFO L168 Benchmark]: RCFGBuilder took 1210.02 ms. Allocated memory was 206.6 MB in the beginning and 235.9 MB in the end (delta: 29.4 MB). Free memory was 171.0 MB in the beginning and 191.4 MB in the end (delta: -20.4 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:28,819 INFO L168 Benchmark]: TraceAbstraction took 29024.44 ms. Allocated memory was 235.9 MB in the beginning and 691.5 MB in the end (delta: 455.6 MB). Free memory was 191.4 MB in the beginning and 641.6 MB in the end (delta: -450.1 MB). Peak memory consumption was 529.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:28,822 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.7 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.42 ms. Allocated memory was 147.8 MB in the beginning and 206.6 MB in the end (delta: 58.7 MB). Free memory was 101.5 MB in the beginning and 174.9 MB in the end (delta: -73.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.50 ms. Allocated memory is still 206.6 MB. Free memory was 174.9 MB in the beginning and 171.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1210.02 ms. Allocated memory was 206.6 MB in the beginning and 235.9 MB in the end (delta: 29.4 MB). Free memory was 171.0 MB in the beginning and 191.4 MB in the end (delta: -20.4 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29024.44 ms. Allocated memory was 235.9 MB in the beginning and 691.5 MB in the end (delta: 455.6 MB). Free memory was 191.4 MB in the beginning and 641.6 MB in the end (delta: -450.1 MB). Peak memory consumption was 529.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) [L990] CALL stopSystem() [L920] COND FALSE !(\read(pumpRunning)) [L927] systemActive = 0 [L990] RET stopSystem() [L997] CALL timeShift() [L701] COND FALSE !(\read(pumpRunning)) [L708] COND FALSE !(\read(systemActive)) [L716] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L1013] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 804 SDtfs, 997 SDslu, 599 SDs, 0 SdLazy, 2939 SolverSat, 673 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=785occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 307 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 85174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...