/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 01:43:41,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 01:43:41,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 01:43:41,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 01:43:41,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 01:43:41,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 01:43:41,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 01:43:41,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 01:43:41,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 01:43:41,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 01:43:41,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 01:43:41,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 01:43:41,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 01:43:41,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 01:43:41,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 01:43:41,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 01:43:41,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 01:43:41,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 01:43:41,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 01:43:41,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 01:43:41,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 01:43:41,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 01:43:41,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 01:43:41,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 01:43:41,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 01:43:41,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 01:43:41,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 01:43:41,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 01:43:41,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 01:43:41,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 01:43:41,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 01:43:41,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 01:43:41,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 01:43:41,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 01:43:41,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 01:43:41,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 01:43:41,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 01:43:41,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 01:43:41,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 01:43:41,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 01:43:41,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 01:43:41,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 01:43:41,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 01:43:41,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 01:43:41,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 01:43:41,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 01:43:41,405 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 01:43:41,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 01:43:41,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 01:43:41,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 01:43:41,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 01:43:41,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 01:43:41,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 01:43:41,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 01:43:41,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 01:43:41,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 01:43:41,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 01:43:41,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 01:43:41,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 01:43:41,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 01:43:41,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 01:43:41,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 01:43:41,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 01:43:41,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:43:41,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 01:43:41,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 01:43:41,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 01:43:41,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 01:43:41,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 01:43:41,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 01:43:41,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 01:43:41,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 01:43:41,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 01:43:41,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 01:43:41,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 01:43:41,779 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 01:43:41,780 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 01:43:41,780 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-15 01:43:41,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/937366e0f/34a6ab35dcf742368957c79057932607/FLAGad96b33b3 [2020-10-15 01:43:42,403 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 01:43:42,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-15 01:43:42,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/937366e0f/34a6ab35dcf742368957c79057932607/FLAGad96b33b3 [2020-10-15 01:43:42,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/937366e0f/34a6ab35dcf742368957c79057932607 [2020-10-15 01:43:42,645 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 01:43:42,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 01:43:42,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 01:43:42,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 01:43:42,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 01:43:42,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:42" (1/1) ... [2020-10-15 01:43:42,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbdf540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:42, skipping insertion in model container [2020-10-15 01:43:42,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:42" (1/1) ... [2020-10-15 01:43:42,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 01:43:42,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 01:43:43,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:43:43,189 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 01:43:43,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:43:43,300 INFO L208 MainTranslator]: Completed translation [2020-10-15 01:43:43,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43 WrapperNode [2020-10-15 01:43:43,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 01:43:43,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 01:43:43,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 01:43:43,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 01:43:43,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (1/1) ... [2020-10-15 01:43:43,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (1/1) ... [2020-10-15 01:43:43,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (1/1) ... [2020-10-15 01:43:43,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (1/1) ... [2020-10-15 01:43:43,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (1/1) ... [2020-10-15 01:43:43,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (1/1) ... [2020-10-15 01:43:43,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (1/1) ... [2020-10-15 01:43:43,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 01:43:43,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 01:43:43,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 01:43:43,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 01:43:43,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:43:43,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 01:43:43,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 01:43:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-15 01:43:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-15 01:43:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-15 01:43:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-15 01:43:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-15 01:43:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-15 01:43:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-15 01:43:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-15 01:43:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-15 01:43:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-15 01:43:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-15 01:43:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-15 01:43:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-15 01:43:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-15 01:43:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-15 01:43:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-15 01:43:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-15 01:43:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 01:43:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-15 01:43:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-15 01:43:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-15 01:43:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-15 01:43:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-15 01:43:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-15 01:43:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-15 01:43:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-15 01:43:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-15 01:43:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-15 01:43:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-15 01:43:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-15 01:43:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-15 01:43:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-15 01:43:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-15 01:43:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-15 01:43:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-15 01:43:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-15 01:43:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 01:43:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 01:43:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-15 01:43:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-15 01:43:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-15 01:43:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-15 01:43:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-15 01:43:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-15 01:43:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-15 01:43:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-15 01:43:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-15 01:43:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-15 01:43:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-15 01:43:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-15 01:43:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-15 01:43:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-15 01:43:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-15 01:43:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-15 01:43:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-15 01:43:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-15 01:43:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-15 01:43:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-15 01:43:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 01:43:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-15 01:43:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-15 01:43:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-15 01:43:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-15 01:43:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-15 01:43:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-15 01:43:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-15 01:43:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-15 01:43:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 01:43:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-15 01:43:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-15 01:43:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 01:43:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 01:43:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-15 01:43:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 01:43:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 01:43:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 01:43:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 01:43:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-15 01:43:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 01:43:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-15 01:43:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-15 01:43:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 01:43:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-15 01:43:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-15 01:43:43,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-15 01:43:43,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 01:43:43,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 01:43:43,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 01:43:44,576 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 01:43:44,576 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-15 01:43:44,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:44 BoogieIcfgContainer [2020-10-15 01:43:44,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 01:43:44,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 01:43:44,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 01:43:44,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 01:43:44,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:43:42" (1/3) ... [2020-10-15 01:43:44,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6120f244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:44, skipping insertion in model container [2020-10-15 01:43:44,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:43" (2/3) ... [2020-10-15 01:43:44,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6120f244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:44, skipping insertion in model container [2020-10-15 01:43:44,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:44" (3/3) ... [2020-10-15 01:43:44,600 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-15 01:43:44,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 01:43:44,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 01:43:44,635 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 01:43:44,662 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 01:43:44,662 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 01:43:44,662 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 01:43:44,663 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 01:43:44,663 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 01:43:44,663 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 01:43:44,663 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 01:43:44,663 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 01:43:44,687 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-10-15 01:43:44,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-15 01:43:44,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:43:44,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:43:44,700 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:43:44,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:43:44,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1153926417, now seen corresponding path program 1 times [2020-10-15 01:43:44,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:43:44,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553715504] [2020-10-15 01:43:44,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:43:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:45,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:45,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:45,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:47,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:47,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 01:43:47,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:43:47,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2177 [2020-10-15 01:43:47,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:47,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 01:43:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:43:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 01:43:47,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 01:43:47,679 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:43:47,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:43:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:47,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:47,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:47,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:47,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:47,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 01:43:47,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:47,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:47,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:47,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:43:47,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:47,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:43:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:47,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:47,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:47,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:43:47,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:47,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 01:43:47,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:47,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:47,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:47,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:43:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 01:43:47,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:43:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:47,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:47,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:47,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:43:47,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:47,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 01:43:47,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:47,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:47,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:47,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:47,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:43:47,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 01:43:47,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:43:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:47,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:47,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:47,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:47,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:47,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 01:43:47,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:47,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:43:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:47,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:43:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:47,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:47,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:47,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:43:47,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:47,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:43:47,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:47,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:47,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:47,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:47,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:43:47,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 01:43:47,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 01:43:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:47,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:47,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:47,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:47,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:43:47,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:47,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:47,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:43:47,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 01:43:47,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 01:43:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:47,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:47,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:47,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:47,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:47,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 01:43:47,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:47,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:47,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:43:47,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:47,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:43:47,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:48,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 01:43:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:48,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:48,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:48,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:48,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:48,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:43:48,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:48,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:48,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:43:48,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:43:48,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:43:48,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:43:48,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553715504] [2020-10-15 01:43:48,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:43:48,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 01:43:48,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199044616] [2020-10-15 01:43:48,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 01:43:48,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:43:48,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 01:43:48,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:43:48,077 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 7 states. [2020-10-15 01:43:48,861 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:43:50,223 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:43:50,601 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-15 01:43:50,892 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-15 01:43:51,180 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:43:51,561 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:43:52,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:43:52,513 INFO L93 Difference]: Finished difference Result 393 states and 535 transitions. [2020-10-15 01:43:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 01:43:52,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-15 01:43:52,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:43:52,541 INFO L225 Difference]: With dead ends: 393 [2020-10-15 01:43:52,541 INFO L226 Difference]: Without dead ends: 251 [2020-10-15 01:43:52,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-15 01:43:52,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-15 01:43:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 214. [2020-10-15 01:43:52,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-15 01:43:52,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 261 transitions. [2020-10-15 01:43:52,665 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 261 transitions. Word has length 52 [2020-10-15 01:43:52,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:43:52,665 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 261 transitions. [2020-10-15 01:43:52,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 01:43:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 261 transitions. [2020-10-15 01:43:52,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-15 01:43:52,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:43:52,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:43:52,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 01:43:52,672 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:43:52,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:43:52,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1383896623, now seen corresponding path program 1 times [2020-10-15 01:43:52,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:43:52,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209360516] [2020-10-15 01:43:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:43:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:52,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:52,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:53,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:54,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:57,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:57,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 01:43:57,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 01:43:57,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 01:43:57,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:57,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 01:43:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:43:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 01:43:57,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:57,997 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:43:57,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:43:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:58,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 01:43:58,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:43:58,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:58,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:43:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:43:58,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:43:58,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:43:58,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:43:58,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:43:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:43:58,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:43:58,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:43:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:43:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:43:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:58,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:43:58,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:58,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:58,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:43:58,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:43:58,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:43:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:43:58,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:43:58,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:58,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:58,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:43:58,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:43:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:43:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:58,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 01:43:58,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:43:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 01:43:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 01:43:58,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:58,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 01:43:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:58,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:43:58,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:43:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:43:58,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:58,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 01:43:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:58,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:43:58,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:43:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:43:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:43:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:58,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 01:43:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:43:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:43:58,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:43:58,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:43:58,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:43:58,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:43:58,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:43:58,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:43:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:43:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:43:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:43:58,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:43:58,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:43:58,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209360516] [2020-10-15 01:43:58,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:43:58,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 01:43:58,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831558817] [2020-10-15 01:43:58,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 01:43:58,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:43:58,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 01:43:58,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-15 01:43:58,216 INFO L87 Difference]: Start difference. First operand 214 states and 261 transitions. Second operand 10 states. [2020-10-15 01:43:58,800 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:43:59,573 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:44:00,256 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:44:00,806 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:44:01,151 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:44:01,428 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:44:01,687 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:44:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:44:03,346 INFO L93 Difference]: Finished difference Result 581 states and 782 transitions. [2020-10-15 01:44:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 01:44:03,347 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-10-15 01:44:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:44:03,357 INFO L225 Difference]: With dead ends: 581 [2020-10-15 01:44:03,357 INFO L226 Difference]: Without dead ends: 437 [2020-10-15 01:44:03,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-15 01:44:03,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-10-15 01:44:03,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 366. [2020-10-15 01:44:03,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-10-15 01:44:03,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 435 transitions. [2020-10-15 01:44:03,451 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 435 transitions. Word has length 57 [2020-10-15 01:44:03,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:44:03,451 INFO L479 AbstractCegarLoop]: Abstraction has 366 states and 435 transitions. [2020-10-15 01:44:03,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 01:44:03,452 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 435 transitions. [2020-10-15 01:44:03,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-15 01:44:03,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:44:03,455 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] [2020-10-15 01:44:03,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 01:44:03,456 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:44:03,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:44:03,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1521634435, now seen corresponding path program 1 times [2020-10-15 01:44:03,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:44:03,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957460623] [2020-10-15 01:44:03,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:44:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:03,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:03,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:03,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 01:44:03,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:03,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-15 01:44:03,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:03,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:44:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:44:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 01:44:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:44:04,248 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:44:04,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:44:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:44:04,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-15 01:44:04,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:44:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:44:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:44:04,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 01:44:04,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:44:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:44:04,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:44:04,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:44:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:44:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:44:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:44:04,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:44:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:44:04,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:44:04,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:44:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:44:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:44:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 01:44:04,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:44:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:44:04,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:44:04,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:44:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:44:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:44:04,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:44:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:44:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:44:04,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:44:04,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:44:04,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:44:04,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:44:04,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:44:04,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 01:44:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:44:04,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:44:04,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:44:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:44:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:44:04,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:44:04,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 01:44:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:44:04,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:44:04,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:44:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:44:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:44:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:44:04,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 01:44:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:44:04,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:44:04,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:44:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:44:04,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:44:04,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:44:04,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 01:44:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:44:04,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:44:04,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:44:04,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:44:04,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:44:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:44:04,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:44:04,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:44:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:44:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:44:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:44:04,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:44:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:44:04,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957460623] [2020-10-15 01:44:04,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:44:04,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 01:44:04,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394032065] [2020-10-15 01:44:04,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 01:44:04,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:44:04,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 01:44:04,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:44:04,441 INFO L87 Difference]: Start difference. First operand 366 states and 435 transitions. Second operand 5 states. [2020-10-15 01:44:04,819 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:44:06,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:44:06,624 INFO L93 Difference]: Finished difference Result 1155 states and 1439 transitions. [2020-10-15 01:44:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 01:44:06,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-10-15 01:44:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:44:06,632 INFO L225 Difference]: With dead ends: 1155 [2020-10-15 01:44:06,633 INFO L226 Difference]: Without dead ends: 813 [2020-10-15 01:44:06,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:44:06,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2020-10-15 01:44:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 669. [2020-10-15 01:44:06,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-10-15 01:44:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 799 transitions. [2020-10-15 01:44:06,799 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 799 transitions. Word has length 61 [2020-10-15 01:44:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:44:06,802 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 799 transitions. [2020-10-15 01:44:06,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 01:44:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 799 transitions. [2020-10-15 01:44:06,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 01:44:06,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:44:06,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:44:06,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 01:44:06,811 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:44:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:44:06,811 INFO L82 PathProgramCache]: Analyzing trace with hash -910069242, now seen corresponding path program 1 times [2020-10-15 01:44:06,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:44:06,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720578592] [2020-10-15 01:44:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:44:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 01:44:06,861 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 01:44:06,861 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 01:44:06,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 01:44:06,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:44:06 BoogieIcfgContainer [2020-10-15 01:44:06,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 01:44:06,915 INFO L168 Benchmark]: Toolchain (without parser) took 24268.61 ms. Allocated memory was 147.3 MB in the beginning and 620.8 MB in the end (delta: 473.4 MB). Free memory was 103.2 MB in the beginning and 328.4 MB in the end (delta: -225.2 MB). Peak memory consumption was 248.2 MB. Max. memory is 7.1 GB. [2020-10-15 01:44:06,916 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-15 01:44:06,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.08 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 102.8 MB in the beginning and 172.8 MB in the end (delta: -70.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-10-15 01:44:06,922 INFO L168 Benchmark]: Boogie Preprocessor took 92.69 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 168.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-15 01:44:06,926 INFO L168 Benchmark]: RCFGBuilder took 1191.66 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.8 MB in the beginning and 200.1 MB in the end (delta: -31.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-10-15 01:44:06,927 INFO L168 Benchmark]: TraceAbstraction took 22322.99 ms. Allocated memory was 236.5 MB in the beginning and 620.8 MB in the end (delta: 384.3 MB). Free memory was 198.4 MB in the beginning and 328.4 MB in the end (delta: -130.1 MB). Peak memory consumption was 254.3 MB. Max. memory is 7.1 GB. [2020-10-15 01:44:06,939 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.08 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 102.8 MB in the beginning and 172.8 MB in the end (delta: -70.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.69 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 168.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1191.66 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.8 MB in the beginning and 200.1 MB in the end (delta: -31.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22322.99 ms. Allocated memory was 236.5 MB in the beginning and 620.8 MB in the end (delta: 384.3 MB). Free memory was 198.4 MB in the beginning and 328.4 MB in the end (delta: -130.1 MB). Peak memory consumption was 254.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 863 SDslu, 612 SDs, 0 SdLazy, 2632 SolverSat, 497 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=669occurred in iteration=3, 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, 252 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 51006 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...