/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:31:27,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:31:27,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:31:27,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:31:27,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:31:27,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:31:27,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:31:27,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:31:27,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:31:27,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:31:27,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:31:27,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:31:27,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:31:27,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:31:27,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:31:27,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:31:27,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:31:27,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:31:27,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:31:27,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:31:27,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:31:27,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:31:27,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:31:27,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:31:27,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:31:27,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:31:27,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:31:27,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:31:27,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:31:27,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:31:27,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:31:27,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:31:27,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:31:27,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:31:27,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:31:27,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:31:27,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:31:27,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:31:27,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:31:27,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:31:27,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:31:27,487 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 07:31:27,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:31:27,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:31:27,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:31:27,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:31:27,518 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:31:27,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:31:27,519 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:31:27,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:31:27,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:31:27,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:31:27,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:31:27,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:31:27,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:31:27,520 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:31:27,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:31:27,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:31:27,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:31:27,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:31:27,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:31:27,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:31:27,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:31:27,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:31:27,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:31:27,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:31:27,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:31:27,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:31:27,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:31:27,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:31:27,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:31:27,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:31:27,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:31:27,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:31:27,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:31:27,999 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:31:28,001 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:31:28,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-25 07:31:28,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6faeeca1a/9bae1c1de03b41b49c019bba6e2bba01/FLAGedd1d7c9b [2020-09-25 07:31:28,736 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:31:28,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-25 07:31:28,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6faeeca1a/9bae1c1de03b41b49c019bba6e2bba01/FLAGedd1d7c9b [2020-09-25 07:31:28,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6faeeca1a/9bae1c1de03b41b49c019bba6e2bba01 [2020-09-25 07:31:28,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:31:28,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:31:28,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:31:28,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:31:28,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:31:28,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:31:28" (1/1) ... [2020-09-25 07:31:29,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:28, skipping insertion in model container [2020-09-25 07:31:29,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:31:28" (1/1) ... [2020-09-25 07:31:29,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:31:29,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:31:29,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:31:29,528 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:31:29,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:31:29,658 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:31:29,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29 WrapperNode [2020-09-25 07:31:29,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:31:29,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:31:29,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:31:29,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:31:29,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (1/1) ... [2020-09-25 07:31:29,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (1/1) ... [2020-09-25 07:31:29,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (1/1) ... [2020-09-25 07:31:29,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (1/1) ... [2020-09-25 07:31:29,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (1/1) ... [2020-09-25 07:31:29,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (1/1) ... [2020-09-25 07:31:29,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (1/1) ... [2020-09-25 07:31:29,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:31:29,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:31:29,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:31:29,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:31:29,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (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 07:31:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:31:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:31:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:31:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:31:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:31:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:31:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:31:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:31:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:31:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:31:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:31:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:31:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:31:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:31:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:31:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:31:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:31:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:31:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:31:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:31:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:31:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:31:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:31:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:31:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:31:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:31:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:31:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:31:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:31:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:31:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:31:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:31:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:31:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:31:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:31:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:31:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:31:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:31:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:31:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:31:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:31:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:31:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:31:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:31:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:31:30,995 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:31:30,996 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:31:31,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:31:31 BoogieIcfgContainer [2020-09-25 07:31:31,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:31:31,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:31:31,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:31:31,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:31:31,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:31:28" (1/3) ... [2020-09-25 07:31:31,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e78294f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:31:31, skipping insertion in model container [2020-09-25 07:31:31,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:29" (2/3) ... [2020-09-25 07:31:31,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e78294f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:31:31, skipping insertion in model container [2020-09-25 07:31:31,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:31:31" (3/3) ... [2020-09-25 07:31:31,020 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-09-25 07:31:31,031 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:31:31,040 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:31:31,061 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:31:31,094 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:31:31,094 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:31:31,094 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:31:31,094 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:31:31,094 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:31:31,095 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:31:31,095 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:31:31,095 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:31:31,121 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-25 07:31:31,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 07:31:31,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:31,140 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 07:31:31,141 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:31,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:31,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1745842468, now seen corresponding path program 1 times [2020-09-25 07:31:31,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:31,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964486] [2020-09-25 07:31:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:31,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:31,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:32,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:35,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:35,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:31:35,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:31:35,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4285 [2020-09-25 07:31:35,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:35,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:35,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:31:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 07:31:36,329 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:31:36,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:31:36,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 07:31:36,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:31:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:36,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:36,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:31:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:36,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:36,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:31:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:36,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:31:36,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:31:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:36,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:36,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:31:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:36,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:31:36,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:31:36,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:31:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:36,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:36,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:31:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:36,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:36,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,684 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 07:31:36,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964486] [2020-09-25 07:31:36,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:36,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:31:36,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584931464] [2020-09-25 07:31:36,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:31:36,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:36,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:31:36,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:31:36,723 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 3 states. [2020-09-25 07:31:38,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:38,175 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2020-09-25 07:31:38,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:31:38,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 07:31:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:38,213 INFO L225 Difference]: With dead ends: 413 [2020-09-25 07:31:38,215 INFO L226 Difference]: Without dead ends: 263 [2020-09-25 07:31:38,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:31:38,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-25 07:31:38,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-09-25 07:31:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-25 07:31:38,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2020-09-25 07:31:38,412 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 153 [2020-09-25 07:31:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:38,415 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2020-09-25 07:31:38,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:31:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2020-09-25 07:31:38,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 07:31:38,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:38,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:31:38,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:31:38,429 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:38,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:38,430 INFO L82 PathProgramCache]: Analyzing trace with hash 998854656, now seen corresponding path program 1 times [2020-09-25 07:31:38,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:38,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892756152] [2020-09-25 07:31:38,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:38,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:38,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:39,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:43,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:43,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:31:43,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:31:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-09-25 07:31:43,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:43,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:43,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:43,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 07:31:43,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 07:31:43,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:43,915 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:31:43,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:43,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:31:44,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 07:31:44,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:44,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:44,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 07:31:44,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:44,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:31:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:44,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:44,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:44,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:31:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:44,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:44,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:44,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:44,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:44,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:31:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:44,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:31:44,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:44,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:44,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:44,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:31:44,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:31:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:44,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:44,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:44,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:44,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:44,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:44,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:44,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:31:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:44,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:44,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:44,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:44,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:44,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:44,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:44,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:31:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:44,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:44,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:44,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:44,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:44,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:31:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:44,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:44,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:44,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:44,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:44,364 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 07:31:44,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892756152] [2020-09-25 07:31:44,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:44,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:31:44,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836181949] [2020-09-25 07:31:44,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:31:44,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:44,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:31:44,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:31:44,371 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 4 states. [2020-09-25 07:31:44,889 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:31:45,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:45,792 INFO L93 Difference]: Finished difference Result 377 states and 436 transitions. [2020-09-25 07:31:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:31:45,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 07:31:45,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:45,798 INFO L225 Difference]: With dead ends: 377 [2020-09-25 07:31:45,798 INFO L226 Difference]: Without dead ends: 263 [2020-09-25 07:31:45,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:31:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-25 07:31:45,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-09-25 07:31:45,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-25 07:31:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-09-25 07:31:45,846 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-09-25 07:31:45,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:45,846 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-09-25 07:31:45,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:31:45,847 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-09-25 07:31:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 07:31:45,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:45,849 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 07:31:45,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:31:45,850 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:45,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:45,850 INFO L82 PathProgramCache]: Analyzing trace with hash -945021933, now seen corresponding path program 1 times [2020-09-25 07:31:45,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:45,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662640861] [2020-09-25 07:31:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:46,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:48,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:48,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 07:31:48,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:31:48,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2875 [2020-09-25 07:31:48,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:48,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:48,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:48,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:31:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:31:48,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:49,071 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:31:49,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:31:49,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 07:31:49,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:49,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:31:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:49,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:49,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:49,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:31:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:49,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:49,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:31:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:49,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:49,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:49,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:31:49,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:31:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:49,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 07:31:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:31:49,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:49,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:31:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:49,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:49,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:49,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:49,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:31:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:49,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:49,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:49,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 07:31:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:49,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:49,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:49,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 07:31:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:49,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:49,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:49,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:49,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:49,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:49,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:49,337 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 07:31:49,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662640861] [2020-09-25 07:31:49,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:49,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:31:49,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235360381] [2020-09-25 07:31:49,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:31:49,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:49,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:31:49,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:31:49,340 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 5 states. [2020-09-25 07:31:50,139 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:51,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:51,050 INFO L93 Difference]: Finished difference Result 354 states and 404 transitions. [2020-09-25 07:31:51,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:31:51,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-09-25 07:31:51,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:51,056 INFO L225 Difference]: With dead ends: 354 [2020-09-25 07:31:51,056 INFO L226 Difference]: Without dead ends: 270 [2020-09-25 07:31:51,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:31:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-25 07:31:51,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 214. [2020-09-25 07:31:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-25 07:31:51,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2020-09-25 07:31:51,102 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 162 [2020-09-25 07:31:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:51,103 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2020-09-25 07:31:51,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:31:51,103 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2020-09-25 07:31:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 07:31:51,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:51,105 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] [2020-09-25 07:31:51,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:31:51,106 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:51,106 INFO L82 PathProgramCache]: Analyzing trace with hash -451135243, now seen corresponding path program 1 times [2020-09-25 07:31:51,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:51,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721991432] [2020-09-25 07:31:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:51,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 07:31:53,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1913 [2020-09-25 07:31:53,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:31:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 07:31:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 07:31:53,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,500 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:31:53,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:31:53,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 07:31:53,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:31:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:31:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:53,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:53,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:53,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:53,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:31:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:53,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:53,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:53,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:31:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:53,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:31:53,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:31:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:53,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:53,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:53,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:31:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:31:53,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:53,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:31:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:53,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:53,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:31:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:53,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:53,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:53,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:31:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:53,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:31:53,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:31:53,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:53,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:53,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:53,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 07:31:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:53,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:53,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:53,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:53,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:53,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:53,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:53,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:53,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:54,042 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 07:31:54,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721991432] [2020-09-25 07:31:54,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:54,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:31:54,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311398554] [2020-09-25 07:31:54,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:31:54,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:54,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:31:54,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:31:54,045 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand 9 states. [2020-09-25 07:31:54,513 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:31:55,468 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:31:56,765 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 07:31:57,382 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 07:31:57,758 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:31:58,087 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:31:58,417 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:31:58,878 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:31:59,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:59,248 INFO L93 Difference]: Finished difference Result 493 states and 582 transitions. [2020-09-25 07:31:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:31:59,249 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-25 07:31:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:59,254 INFO L225 Difference]: With dead ends: 493 [2020-09-25 07:31:59,254 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 07:31:59,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:31:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 07:31:59,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 314. [2020-09-25 07:31:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-09-25 07:31:59,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 343 transitions. [2020-09-25 07:31:59,316 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 343 transitions. Word has length 171 [2020-09-25 07:31:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:59,317 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 343 transitions. [2020-09-25 07:31:59,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:31:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 343 transitions. [2020-09-25 07:31:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 07:31:59,320 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:59,321 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] [2020-09-25 07:31:59,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:31:59,321 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:59,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:59,321 INFO L82 PathProgramCache]: Analyzing trace with hash -481228589, now seen corresponding path program 1 times [2020-09-25 07:31:59,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:59,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922548939] [2020-09-25 07:31:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:31:59,390 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:31:59,390 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:31:59,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:31:59,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:31:59 BoogieIcfgContainer [2020-09-25 07:31:59,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:31:59,424 INFO L168 Benchmark]: Toolchain (without parser) took 30435.94 ms. Allocated memory was 138.4 MB in the beginning and 597.2 MB in the end (delta: 458.8 MB). Free memory was 101.0 MB in the beginning and 335.8 MB in the end (delta: -234.8 MB). Peak memory consumption was 223.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:59,425 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:31:59,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.65 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.3 MB in the beginning and 172.3 MB in the end (delta: -72.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:59,427 INFO L168 Benchmark]: Boogie Preprocessor took 94.29 ms. Allocated memory is still 201.9 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:59,428 INFO L168 Benchmark]: RCFGBuilder took 1249.41 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 168.1 MB in the beginning and 182.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:59,429 INFO L168 Benchmark]: TraceAbstraction took 28415.65 ms. Allocated memory was 233.3 MB in the beginning and 597.2 MB in the end (delta: 363.9 MB). Free memory was 182.3 MB in the beginning and 335.8 MB in the end (delta: -153.5 MB). Peak memory consumption was 210.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:59,433 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.65 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.3 MB in the beginning and 172.3 MB in the end (delta: -72.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.29 ms. Allocated memory is still 201.9 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1249.41 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 168.1 MB in the beginning and 182.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28415.65 ms. Allocated memory was 233.3 MB in the beginning and 597.2 MB in the end (delta: 363.9 MB). Free memory was 182.3 MB in the beginning and 335.8 MB in the end (delta: -153.5 MB). Peak memory consumption was 210.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L95] int pumpRunning = 0; [L96] int systemActive = 1; [L297] int cleanupTimeShifts = 4; [L562] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L760] int waterLevel = 1; [L761] int methaneLevelCritical = 0; [L370] int retValue_acc ; [L371] int tmp ; [L375] FCALL select_helpers() [L376] FCALL select_features() [L377] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L377] RET, EXPR valid_product() [L377] tmp = valid_product() [L379] COND TRUE \read(tmp) [L381] FCALL setup() [L382] CALL runTest() [L364] CALL test() [L233] int splverifierCounter ; [L234] int tmp ; [L235] int tmp___0 ; [L236] int tmp___1 ; [L237] int tmp___2 ; [L240] splverifierCounter = 0 [L242] COND TRUE 1 [L244] COND TRUE splverifierCounter < 4 [L250] tmp = __VERIFIER_nondet_int() [L252] COND TRUE \read(tmp) [L254] CALL waterRise() [L778] COND TRUE waterLevel < 2 [L779] waterLevel = waterLevel + 1 [L254] RET waterRise() [L260] tmp___0 = __VERIFIER_nondet_int() [L262] COND FALSE !(\read(tmp___0)) [L270] tmp___2 = __VERIFIER_nondet_int() [L272] COND TRUE \read(tmp___2) [L285] CALL timeShift() [L103] COND FALSE !(\read(pumpRunning)) [L110] COND TRUE \read(systemActive) [L112] CALL processEnvironment() [L132] int tmp ; [L135] COND FALSE !(\read(pumpRunning)) [L150] FCALL processEnvironment__wrappee__base() [L112] RET processEnvironment() [L118] CALL __utac_acc__Specification3_spec__1() [L841] int tmp ; [L842] int tmp___0 ; [L843] int tmp___1 ; [L847] CALL, EXPR isMethaneLevelCritical() [L799] int retValue_acc ; [L802] retValue_acc = methaneLevelCritical [L803] return (retValue_acc); [L847] RET, EXPR isMethaneLevelCritical() [L847] tmp = isMethaneLevelCritical() [L849] COND FALSE !(\read(tmp)) [L853] CALL, EXPR getWaterLevel() [L831] int retValue_acc ; [L834] retValue_acc = waterLevel [L835] return (retValue_acc); [L853] RET, EXPR getWaterLevel() [L853] tmp___0 = getWaterLevel() [L855] COND TRUE tmp___0 == 2 [L857] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L857] RET, EXPR isPumpRunning() [L857] tmp___1 = isPumpRunning() [L859] COND FALSE !(\read(tmp___1)) [L863] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 837 SDtfs, 981 SDslu, 749 SDs, 0 SdLazy, 1615 SolverSat, 294 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 209 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.1s InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 636 ConstructedInterpolants, 0 QuantifiedInterpolants, 251056 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...