/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:43:37,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:43:37,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:43:37,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:43:37,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:43:37,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:43:37,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:43:37,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:43:37,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:43:37,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:43:37,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:43:37,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:43:37,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:43:37,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:43:37,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:43:37,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:43:37,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:43:37,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:43:37,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:43:37,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:43:37,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:43:37,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:43:37,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:43:37,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:43:37,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:43:37,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:43:37,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:43:37,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:43:37,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:43:37,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:43:37,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:43:37,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:43:37,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:43:37,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:43:37,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:43:37,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:43:37,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:43:37,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:43:37,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:43:37,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:43:37,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:43:37,438 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:43:37,467 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:43:37,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:43:37,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:43:37,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:43:37,469 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:43:37,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:43:37,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:43:37,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:43:37,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:43:37,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:43:37,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:43:37,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:43:37,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:43:37,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:43:37,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:43:37,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:43:37,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:43:37,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:43:37,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:43:37,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:43:37,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:43:37,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:43:37,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:43:37,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:43:37,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:43:37,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:43:37,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:43:37,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:43:37,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:43:37,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 16:43:37,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:43:37,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:43:37,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:43:37,964 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:43:37,964 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:43:37,966 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-09-24 16:43:38,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dc110833/545397f30a6b4ab8bb9d4a643d3e3b33/FLAG6a19e39c3 [2020-09-24 16:43:38,681 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:43:38,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-09-24 16:43:38,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dc110833/545397f30a6b4ab8bb9d4a643d3e3b33/FLAG6a19e39c3 [2020-09-24 16:43:38,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dc110833/545397f30a6b4ab8bb9d4a643d3e3b33 [2020-09-24 16:43:38,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:43:38,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:43:38,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:43:38,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:43:38,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:43:38,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:43:38" (1/1) ... [2020-09-24 16:43:38,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:38, skipping insertion in model container [2020-09-24 16:43:38,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:43:38" (1/1) ... [2020-09-24 16:43:38,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:43:39,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:43:39,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:43:39,539 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:43:39,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:43:39,663 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:43:39,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39 WrapperNode [2020-09-24 16:43:39,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:43:39,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:43:39,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:43:39,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:43:39,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:43:39,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:43:39,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:43:39,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:43:39,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:43:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:43:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:43:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:43:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:43:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:43:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:43:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:43:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:43:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:43:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:43:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:43:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:43:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:43:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:43:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:43:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:43:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:43:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:43:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:43:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:43:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:43:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:43:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:43:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:43:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:43:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:43:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:43:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:43:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:43:39,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:43:39,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:43:39,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:43:39,862 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:43:39,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:43:39,862 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:43:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:43:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:43:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:43:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:43:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:43:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:43:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:43:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:43:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:43:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:43:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:43:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:43:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:43:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:43:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:43:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:43:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:43:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:43:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:43:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:43:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:43:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:43:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:43:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:43:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:43:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:43:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:43:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:43:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:43:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:43:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:43:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:43:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:43:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:43:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:43:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:43:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:43:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:43:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:43:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:43:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:43:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:43:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:43:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:43:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:43:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:43:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:43:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:43:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:43:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:43:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:43:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:43:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:43:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:43:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:43:41,021 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:43:41,021 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:43:41,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:43:41 BoogieIcfgContainer [2020-09-24 16:43:41,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:43:41,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:43:41,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:43:41,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:43:41,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:43:38" (1/3) ... [2020-09-24 16:43:41,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ece5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:43:41, skipping insertion in model container [2020-09-24 16:43:41,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (2/3) ... [2020-09-24 16:43:41,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ece5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:43:41, skipping insertion in model container [2020-09-24 16:43:41,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:43:41" (3/3) ... [2020-09-24 16:43:41,038 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2020-09-24 16:43:41,049 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:43:41,060 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:43:41,082 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:43:41,114 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:43:41,114 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:43:41,114 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:43:41,115 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:43:41,115 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:43:41,115 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:43:41,115 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:43:41,115 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:43:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-09-24 16:43:41,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:43:41,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:43:41,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:43:41,164 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:43:41,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:43:41,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1579336434, now seen corresponding path program 1 times [2020-09-24 16:43:41,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:43:41,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993142784] [2020-09-24 16:43:41,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:43:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:41,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:41,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:43,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:44,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:50,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:57,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:57,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:43:57,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:43:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16423 [2020-09-24 16:43:57,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:43:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 16:43:57,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:43:57,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 16:43:58,471 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:43:58,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:43:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:58,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:58,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:58,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:43:58,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:58,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 16:43:58,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:58,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:58,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:58,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:43:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:58,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:58,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:58,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:43:58,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:43:58,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:58,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:58,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:43:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:58,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:58,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:43:58,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:43:58,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:58,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:43:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:58,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:58,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:58,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:43:58,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:58,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:43:58,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:58,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:58,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:58,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:43:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:58,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:58,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:58,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:43:58,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:58,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:43:58,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:58,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:58,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:43:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:58,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:58,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:58,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:43:58,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:43:58,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:43:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:43:58,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:58,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:43:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:58,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:58,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:58,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:43:58,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:58,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:43:58,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:43:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:43:58,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:58,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:43:58,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993142784] [2020-09-24 16:43:58,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:43:58,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:43:58,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946219414] [2020-09-24 16:43:58,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:43:58,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:43:58,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:43:58,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:43:58,785 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 8 states. [2020-09-24 16:43:59,409 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:44:00,660 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:00,975 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:44:01,326 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:01,668 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:44:01,967 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:02,586 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:44:02,867 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:03,246 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:04,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:44:04,178 INFO L93 Difference]: Finished difference Result 537 states and 670 transitions. [2020-09-24 16:44:04,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:44:04,181 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 16:44:04,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:44:04,217 INFO L225 Difference]: With dead ends: 537 [2020-09-24 16:44:04,217 INFO L226 Difference]: Without dead ends: 366 [2020-09-24 16:44:04,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:44:04,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-09-24 16:44:04,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 323. [2020-09-24 16:44:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 16:44:04,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 369 transitions. [2020-09-24 16:44:04,350 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 369 transitions. Word has length 142 [2020-09-24 16:44:04,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:44:04,351 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 369 transitions. [2020-09-24 16:44:04,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:44:04,352 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 369 transitions. [2020-09-24 16:44:04,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 16:44:04,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:44:04,358 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:44:04,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:44:04,359 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:44:04,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:44:04,359 INFO L82 PathProgramCache]: Analyzing trace with hash -630123109, now seen corresponding path program 1 times [2020-09-24 16:44:04,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:44:04,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723523880] [2020-09-24 16:44:04,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:44:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:04,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:04,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:04,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:05,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:11,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:11,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking...