/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:10:58,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:10:58,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:10:58,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:10:58,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:10:58,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:10:58,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:10:58,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:10:58,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:10:58,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:10:58,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:10:58,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:10:58,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:10:58,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:10:58,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:10:58,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:10:58,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:10:58,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:10:58,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:10:58,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:10:58,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:10:58,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:10:58,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:10:58,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:10:58,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:10:58,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:10:58,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:10:58,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:10:58,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:10:58,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:10:58,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:10:58,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:10:58,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:10:58,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:10:58,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:10:58,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:10:58,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:10:58,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:10:58,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:10:58,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:10:58,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:10:58,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:10:58,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:10:58,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:10:58,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:10:58,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:10:58,388 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:10:58,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:10:58,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:10:58,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:10:58,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:10:58,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:10:58,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:10:58,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:10:58,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:10:58,390 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:10:58,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:10:58,390 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:10:58,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:10:58,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:10:58,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:10:58,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:10:58,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:10:58,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:10:58,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:10:58,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:10:58,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:10:58,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:10:58,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:10:58,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:10:58,393 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:10:58,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:10:58,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:10:58,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:10:58,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:10:58,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:10:58,875 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:10:58,877 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-09-25 13:10:58,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/396434655/e3799931d47c48fba550c6e2b88b8889/FLAG135123296 [2020-09-25 13:10:59,591 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:10:59,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-09-25 13:10:59,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/396434655/e3799931d47c48fba550c6e2b88b8889/FLAG135123296 [2020-09-25 13:10:59,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/396434655/e3799931d47c48fba550c6e2b88b8889 [2020-09-25 13:10:59,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:10:59,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:10:59,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:10:59,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:10:59,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:10:59,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:59" (1/1) ... [2020-09-25 13:10:59,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b2c5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:59, skipping insertion in model container [2020-09-25 13:10:59,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:59" (1/1) ... [2020-09-25 13:10:59,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:10:59,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:11:00,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:00,396 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:11:00,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:00,567 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:11:00,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00 WrapperNode [2020-09-25 13:11:00,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:00,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:11:00,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:11:00,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:11:00,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (1/1) ... [2020-09-25 13:11:00,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (1/1) ... [2020-09-25 13:11:00,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (1/1) ... [2020-09-25 13:11:00,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (1/1) ... [2020-09-25 13:11:00,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (1/1) ... [2020-09-25 13:11:00,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (1/1) ... [2020-09-25 13:11:00,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (1/1) ... [2020-09-25 13:11:00,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:11:00,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:11:00,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:11:00,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:11:00,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:11:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:11:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:11:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:11:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:11:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:11:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:11:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:11:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:11:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:11:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:11:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 13:11:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:11:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:11:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:11:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:11:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:11:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:11:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:11:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:11:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:11:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:11:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:11:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:11:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:11:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:11:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:11:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:11:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 13:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:11:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:11:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:11:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:11:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:11:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:11:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:11:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:11:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:11:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:11:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:11:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:11:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:11:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:11:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:11:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:11:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:11:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:11:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:11:01,960 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:11:01,961 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:11:01,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:01 BoogieIcfgContainer [2020-09-25 13:11:01,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:11:01,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:11:01,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:11:01,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:11:01,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:59" (1/3) ... [2020-09-25 13:11:01,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf27d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:01, skipping insertion in model container [2020-09-25 13:11:01,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:00" (2/3) ... [2020-09-25 13:11:01,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf27d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:01, skipping insertion in model container [2020-09-25 13:11:01,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:01" (3/3) ... [2020-09-25 13:11:01,979 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2020-09-25 13:11:01,991 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:11:02,003 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:11:02,027 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:11:02,061 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:11:02,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:11:02,062 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:11:02,062 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:11:02,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:11:02,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:11:02,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:11:02,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:11:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-09-25 13:11:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:11:02,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:02,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:11:02,108 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:02,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1270586299, now seen corresponding path program 1 times [2020-09-25 13:11:02,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:02,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566451949] [2020-09-25 13:11:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:02,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:02,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:04,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:07,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:07,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:11:07,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:11:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 13:11:07,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:07,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:11:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:11:07,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:11:07,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:11:08,183 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:08,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:08,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:08,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:08,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:08,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 13:11:08,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:08,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:11:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:08,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:08,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:08,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:08,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:08,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:08,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:08,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:08,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:08,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:08,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:08,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:08,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:08,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:08,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:08,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:08,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:08,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:08,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:08,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:08,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:08,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:11:08,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:08,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:08,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:08,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:08,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:08,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:08,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:08,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:08,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:08,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:11:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:08,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:08,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:08,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:08,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:08,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:08,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:08,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:08,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:08,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:11:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:08,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:08,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:08,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:08,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:08,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:08,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:08,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:08,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:08,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:11:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:08,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:08,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:08,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:08,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:08,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:08,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:08,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:08,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:08,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:08,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:11:08,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566451949] [2020-09-25 13:11:08,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:08,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:11:08,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754287012] [2020-09-25 13:11:08,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:11:08,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:08,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:11:08,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:11:08,768 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 4 states. [2020-09-25 13:11:09,596 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:11,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:11,035 INFO L93 Difference]: Finished difference Result 422 states and 505 transitions. [2020-09-25 13:11:11,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:11:11,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 13:11:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:11,058 INFO L225 Difference]: With dead ends: 422 [2020-09-25 13:11:11,059 INFO L226 Difference]: Without dead ends: 268 [2020-09-25 13:11:11,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:11:11,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-25 13:11:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-25 13:11:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 13:11:11,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 245 transitions. [2020-09-25 13:11:11,276 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 245 transitions. Word has length 153 [2020-09-25 13:11:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:11,280 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 245 transitions. [2020-09-25 13:11:11,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:11:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 245 transitions. [2020-09-25 13:11:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 13:11:11,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:11,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:11:11,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:11:11,303 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:11,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:11,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1426489303, now seen corresponding path program 1 times [2020-09-25 13:11:11,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:11,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079995504] [2020-09-25 13:11:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:11,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:11,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 13:11:15,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:11:15,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3811 [2020-09-25 13:11:15,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:11:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:11:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 13:11:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:11:15,546 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:15,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:15,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 13:11:15,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:15,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:11:15,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:15,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:15,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:15,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:15,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:15,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:15,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:15,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:15,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:15,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:15,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:11:15,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:15,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:15,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:15,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:15,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:15,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:15,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:11:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:11:15,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:15,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:11:15,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:15,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:15,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:15,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:15,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:11:15,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:11:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:15,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:15,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 13:11:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:15,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:15,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:15,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:15,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:15,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:15,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:15,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:11:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:15,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:16,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 13:11:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:16,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:16,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:16,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:16,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:16,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:16,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:16,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:16,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:16,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:16,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:11:16,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079995504] [2020-09-25 13:11:16,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:16,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:11:16,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222796202] [2020-09-25 13:11:16,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:11:16,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:16,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:11:16,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:11:16,086 INFO L87 Difference]: Start difference. First operand 228 states and 245 transitions. Second operand 9 states. [2020-09-25 13:11:16,678 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:18,123 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:11:19,075 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 13:11:19,656 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 13:11:20,093 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:20,425 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:20,741 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:21,208 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:22,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:22,161 INFO L93 Difference]: Finished difference Result 559 states and 686 transitions. [2020-09-25 13:11:22,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:11:22,162 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2020-09-25 13:11:22,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:22,168 INFO L225 Difference]: With dead ends: 559 [2020-09-25 13:11:22,169 INFO L226 Difference]: Without dead ends: 441 [2020-09-25 13:11:22,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:11:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-09-25 13:11:22,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 342. [2020-09-25 13:11:22,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-09-25 13:11:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 381 transitions. [2020-09-25 13:11:22,255 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 381 transitions. Word has length 162 [2020-09-25 13:11:22,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:22,256 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 381 transitions. [2020-09-25 13:11:22,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:11:22,256 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 381 transitions. [2020-09-25 13:11:22,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 13:11:22,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:22,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:11:22,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:11:22,260 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:22,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1505136072, now seen corresponding path program 1 times [2020-09-25 13:11:22,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:22,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183978417] [2020-09-25 13:11:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:22,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:22,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:22,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:27,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:27,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:11:27,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:11:27,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 13:11:27,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:27,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:27,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:11:27,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:11:27,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:11:27,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:27,842 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:27,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:27,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:28,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 13:11:28,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:28,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:28,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:11:28,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:28,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:28,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:28,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:28,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:28,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:28,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:28,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:28,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:28,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:28,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:28,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:11:28,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:28,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:28,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:28,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:28,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:28,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 13:11:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:11:28,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:28,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:28,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:11:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:28,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 13:11:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:11:28,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:28,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:11:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:28,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:11:28,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:28,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:28,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:28,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:11:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:28,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:28,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:28,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 13:11:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:28,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:28,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 13:11:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:28,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:28,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:28,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:28,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:28,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:28,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:28,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:28,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:28,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:28,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:28,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:11:28,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183978417] [2020-09-25 13:11:28,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:28,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:11:28,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184258066] [2020-09-25 13:11:28,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:11:28,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:28,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:11:28,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:11:28,280 INFO L87 Difference]: Start difference. First operand 342 states and 381 transitions. Second operand 6 states. [2020-09-25 13:11:28,786 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:29,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:29,491 INFO L93 Difference]: Finished difference Result 544 states and 633 transitions. [2020-09-25 13:11:29,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:11:29,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 13:11:29,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:29,496 INFO L225 Difference]: With dead ends: 544 [2020-09-25 13:11:29,496 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 13:11:29,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:11:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 13:11:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 277. [2020-09-25 13:11:29,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 13:11:29,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 294 transitions. [2020-09-25 13:11:29,569 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 294 transitions. Word has length 167 [2020-09-25 13:11:29,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:29,570 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 294 transitions. [2020-09-25 13:11:29,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:11:29,571 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 294 transitions. [2020-09-25 13:11:29,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 13:11:29,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:29,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:11:29,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:11:29,574 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:29,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:29,575 INFO L82 PathProgramCache]: Analyzing trace with hash -510510222, now seen corresponding path program 1 times [2020-09-25 13:11:29,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:29,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455237455] [2020-09-25 13:11:29,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:11:29,649 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:11:29,649 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:11:29,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:11:29,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:29 BoogieIcfgContainer [2020-09-25 13:11:29,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:11:29,701 INFO L168 Benchmark]: Toolchain (without parser) took 29873.28 ms. Allocated memory was 142.1 MB in the beginning and 543.7 MB in the end (delta: 401.6 MB). Free memory was 101.5 MB in the beginning and 96.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 406.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:29,702 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:11:29,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.99 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 174.2 MB in the end (delta: -73.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:29,706 INFO L168 Benchmark]: Boogie Preprocessor took 98.04 ms. Allocated memory is still 204.5 MB. Free memory was 174.2 MB in the beginning and 170.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:29,713 INFO L168 Benchmark]: RCFGBuilder took 1300.72 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.1 MB in the beginning and 182.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:29,714 INFO L168 Benchmark]: TraceAbstraction took 27728.45 ms. Allocated memory was 237.0 MB in the beginning and 543.7 MB in the end (delta: 306.7 MB). Free memory was 182.7 MB in the beginning and 96.8 MB in the end (delta: 85.9 MB). Peak memory consumption was 392.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:29,727 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.99 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 174.2 MB in the end (delta: -73.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.04 ms. Allocated memory is still 204.5 MB. Free memory was 174.2 MB in the beginning and 170.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1300.72 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.1 MB in the beginning and 182.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27728.45 ms. Allocated memory was 237.0 MB in the beginning and 543.7 MB in the end (delta: 306.7 MB). Free memory was 182.7 MB in the beginning and 96.8 MB in the end (delta: 85.9 MB). Peak memory consumption was 392.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L458] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L725] int cleanupTimeShifts = 4; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; [L798] int retValue_acc ; [L799] int tmp ; [L803] FCALL select_helpers() [L804] FCALL select_features() [L805] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L805] RET, EXPR valid_product() [L805] tmp = valid_product() [L807] COND TRUE \read(tmp) [L809] FCALL setup() [L810] CALL runTest() [L792] CALL test() [L659] int splverifierCounter ; [L660] int tmp ; [L661] int tmp___0 ; [L662] int tmp___1 ; [L663] int tmp___2 ; [L666] splverifierCounter = 0 [L668] COND TRUE 1 [L670] COND TRUE splverifierCounter < 4 [L676] tmp = __VERIFIER_nondet_int() [L678] COND TRUE \read(tmp) [L680] CALL waterRise() [L839] COND TRUE waterLevel < 2 [L840] waterLevel = waterLevel + 1 [L680] RET waterRise() [L686] tmp___0 = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp___0)) [L696] tmp___2 = __VERIFIER_nondet_int() [L698] COND TRUE \read(tmp___2) [L700] CALL startSystem() [L284] systemActive = 1 [L700] RET startSystem() [L713] CALL timeShift() [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L167] int tmp ; [L170] COND FALSE !(\read(pumpRunning)) [L185] FCALL processEnvironment__wrappee__methaneQuery() [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 603 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 634 SDtfs, 1121 SDslu, 790 SDs, 0 SdLazy, 1549 SolverSat, 344 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 163 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 662 NumberOfCodeBlocks, 662 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 203779 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...