/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 --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 interpolation-heuristic=FIRST --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_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:10:24,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:10:24,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:10:24,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:10:24,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:10:24,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:10:24,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:10:24,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:10:24,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:10:24,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:10:24,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:10:24,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:10:24,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:10:24,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:10:24,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:10:24,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:10:24,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:10:24,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:10:24,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:10:24,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:10:24,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:10:24,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:10:24,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:10:24,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:10:24,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:10:24,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:10:24,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:10:24,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:10:24,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:10:24,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:10:24,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:10:24,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:10:24,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:10:24,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:10:24,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:10:24,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:10:24,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:10:24,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:10:24,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:10:24,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:10:24,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:10:24,536 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 [2020-09-21 11:10:24,586 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:10:24,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:10:24,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:10:24,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:10:24,589 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:10:24,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:10:24,590 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:10:24,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:10:24,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:10:24,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:10:24,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:10:24,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:10:24,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:10:24,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:10:24,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:10:24,593 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:10:24,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:10:24,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:10:24,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:10:24,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:10:24,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:10:24,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:24,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:10:24,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:10:24,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:10:24,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:10:24,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:10:24,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:10:24,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:10:24,595 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:10:25,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:10:25,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:10:25,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:10:25,064 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:10:25,065 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:10:25,066 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-09-21 11:10:25,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d15d89c01/b24d7bfb2642482da619989bbffad11b/FLAG4a8f3da82 [2020-09-21 11:10:25,796 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:25,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-09-21 11:10:25,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d15d89c01/b24d7bfb2642482da619989bbffad11b/FLAG4a8f3da82 [2020-09-21 11:10:26,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d15d89c01/b24d7bfb2642482da619989bbffad11b [2020-09-21 11:10:26,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:26,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:26,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:26,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:26,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:26,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:26,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201d7596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26, skipping insertion in model container [2020-09-21 11:10:26,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:26,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:26,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:26,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:26,762 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:26,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:26,883 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:26,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26 WrapperNode [2020-09-21 11:10:26,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:26,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:26,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:26,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:26,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:26,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:26,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:26,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:26,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:26,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:26,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (1/1) ... [2020-09-21 11:10:27,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:27,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:27,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:27,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:27,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (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 [2020-09-21 11:10:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:10:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:10:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:10:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:10:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:10:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:10:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:10:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:10:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:10:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:10:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:28,135 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:28,135 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:28,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:28 BoogieIcfgContainer [2020-09-21 11:10:28,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:28,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:28,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:28,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:28,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:26" (1/3) ... [2020-09-21 11:10:28,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cc05b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:28, skipping insertion in model container [2020-09-21 11:10:28,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:26" (2/3) ... [2020-09-21 11:10:28,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cc05b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:28, skipping insertion in model container [2020-09-21 11:10:28,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:28" (3/3) ... [2020-09-21 11:10:28,151 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-09-21 11:10:28,163 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:28,173 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:28,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:28,229 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:28,229 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:28,229 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:28,229 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:28,230 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:28,230 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:28,230 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:28,230 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:28,257 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-09-21 11:10:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:28,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:28,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:28,271 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:28,279 INFO L82 PathProgramCache]: Analyzing trace with hash -374908160, now seen corresponding path program 1 times [2020-09-21 11:10:28,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:28,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457706610] [2020-09-21 11:10:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:28,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:28,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:28,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:28,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:10:28,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:28,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:28,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:28,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:29,107 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:29,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:29,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:29,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:29,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:29,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:29,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:29,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:29,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:29,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:29,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:29,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:29,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:29,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:29,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:29,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:29,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:29,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:29,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:29,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:29,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:29,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:29,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:29,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:29,189 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:29,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:29,190 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:29,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:29,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:29,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:29,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:29,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:29,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:29,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:29,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:29,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:29,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:29,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:29,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:29,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:29,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:29,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:29,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:29,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:29,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:29,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:29,204 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:29,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:29,205 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:29,205 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:29,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:29,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:29,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:29,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:29,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-21 11:10:29,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:29,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:29,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:29,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:29,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:29,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:29,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:29,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:29,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:29,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:29,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:29,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:29,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:29,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:29,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:29,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:29,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:29,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:29,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:29,232 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:29,233 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:29,233 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:29,233 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:29,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:29,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:29,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:29,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:29,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:29,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457706610] [2020-09-21 11:10:29,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:29,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:29,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395547541] [2020-09-21 11:10:29,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:29,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:29,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:29,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:29,314 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2020-09-21 11:10:30,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:30,569 INFO L93 Difference]: Finished difference Result 316 states and 408 transitions. [2020-09-21 11:10:30,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:30,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:30,591 INFO L225 Difference]: With dead ends: 316 [2020-09-21 11:10:30,591 INFO L226 Difference]: Without dead ends: 171 [2020-09-21 11:10:30,597 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 [2020-09-21 11:10:30,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-21 11:10:30,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 136. [2020-09-21 11:10:30,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-21 11:10:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2020-09-21 11:10:30,736 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 52 [2020-09-21 11:10:30,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:30,736 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2020-09-21 11:10:30,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:30,737 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2020-09-21 11:10:30,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:30,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:30,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:30,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:30,751 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:30,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:30,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1199290513, now seen corresponding path program 1 times [2020-09-21 11:10:30,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:30,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146265709] [2020-09-21 11:10:30,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:30,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:30,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:30,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:30,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:30,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:30,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:10:30,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:30,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,161 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:31,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,170 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,171 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:31,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:10:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,232 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:31,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,240 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:31,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:10:31,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:10:31,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:31,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146265709] [2020-09-21 11:10:31,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:31,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:31,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353640337] [2020-09-21 11:10:31,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:31,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:31,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:31,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:31,290 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 4 states. [2020-09-21 11:10:31,738 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:32,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:32,629 INFO L93 Difference]: Finished difference Result 236 states and 285 transitions. [2020-09-21 11:10:32,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:32,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:32,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:32,633 INFO L225 Difference]: With dead ends: 236 [2020-09-21 11:10:32,634 INFO L226 Difference]: Without dead ends: 155 [2020-09-21 11:10:32,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-21 11:10:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 127. [2020-09-21 11:10:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-09-21 11:10:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-09-21 11:10:32,696 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 53 [2020-09-21 11:10:32,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:32,697 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-09-21 11:10:32,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-09-21 11:10:32,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 11:10:32,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:32,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:32,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:32,703 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:32,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:32,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1173909231, now seen corresponding path program 1 times [2020-09-21 11:10:32,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:32,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838870369] [2020-09-21 11:10:32,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:33,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:10:33,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-09-21 11:10:33,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:10:33,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,545 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:33,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:10:33,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:33,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:33,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:33,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,671 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:33,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:33,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:10:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:33,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838870369] [2020-09-21 11:10:33,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:33,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:33,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034441031] [2020-09-21 11:10:33,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:33,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:33,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:33,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:33,705 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 4 states. [2020-09-21 11:10:34,043 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:35,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:35,632 INFO L93 Difference]: Finished difference Result 373 states and 452 transitions. [2020-09-21 11:10:35,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:35,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-21 11:10:35,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:35,638 INFO L225 Difference]: With dead ends: 373 [2020-09-21 11:10:35,639 INFO L226 Difference]: Without dead ends: 270 [2020-09-21 11:10:35,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-21 11:10:35,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 214. [2020-09-21 11:10:35,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-21 11:10:35,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 251 transitions. [2020-09-21 11:10:35,710 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 251 transitions. Word has length 58 [2020-09-21 11:10:35,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:35,711 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 251 transitions. [2020-09-21 11:10:35,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:35,711 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 251 transitions. [2020-09-21 11:10:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:35,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:35,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:35,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:35,713 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:35,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:35,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1403187774, now seen corresponding path program 1 times [2020-09-21 11:10:35,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:35,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820582727] [2020-09-21 11:10:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,145 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:36,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-09-21 11:10:36,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:36,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,535 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:36,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:10:36,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:36,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:36,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:36,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:36,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:36,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:36,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:36,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:36,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:36,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:10:36,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:36,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:36,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:36,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820582727] [2020-09-21 11:10:36,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:36,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:36,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542570827] [2020-09-21 11:10:36,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:36,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:36,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:36,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:36,730 INFO L87 Difference]: Start difference. First operand 214 states and 251 transitions. Second operand 8 states. [2020-09-21 11:10:37,120 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:38,607 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:38,962 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:39,283 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:39,655 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:40,665 INFO L93 Difference]: Finished difference Result 665 states and 852 transitions. [2020-09-21 11:10:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:40,666 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:10:40,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:40,672 INFO L225 Difference]: With dead ends: 665 [2020-09-21 11:10:40,672 INFO L226 Difference]: Without dead ends: 475 [2020-09-21 11:10:40,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:10:40,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-09-21 11:10:40,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 407. [2020-09-21 11:10:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-09-21 11:10:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 485 transitions. [2020-09-21 11:10:40,762 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 485 transitions. Word has length 63 [2020-09-21 11:10:40,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:40,763 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 485 transitions. [2020-09-21 11:10:40,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 485 transitions. [2020-09-21 11:10:40,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:40,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:40,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:40,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:40,766 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:40,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:40,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1321896348, now seen corresponding path program 1 times [2020-09-21 11:10:40,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:40,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167656168] [2020-09-21 11:10:40,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 11:10:41,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-21 11:10:41,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:10:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:10:41,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,547 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:41,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:10:41,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:41,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:41,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:41,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:41,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:41,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:41,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:41,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,695 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:41,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:41,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:41,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:41,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:41,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:41,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:41,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:10:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:10:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:10:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:10:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,749 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,749 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,749 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:41,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:41,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167656168] [2020-09-21 11:10:41,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:41,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:10:41,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4889704] [2020-09-21 11:10:41,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:10:41,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:41,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:10:41,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:10:41,767 INFO L87 Difference]: Start difference. First operand 407 states and 485 transitions. Second operand 6 states. [2020-09-21 11:10:42,113 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:44,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:44,111 INFO L93 Difference]: Finished difference Result 1049 states and 1325 transitions. [2020-09-21 11:10:44,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:44,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-09-21 11:10:44,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:44,120 INFO L225 Difference]: With dead ends: 1049 [2020-09-21 11:10:44,121 INFO L226 Difference]: Without dead ends: 666 [2020-09-21 11:10:44,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:10:44,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-09-21 11:10:44,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 613. [2020-09-21 11:10:44,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-09-21 11:10:44,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 740 transitions. [2020-09-21 11:10:44,250 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 740 transitions. Word has length 67 [2020-09-21 11:10:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:44,250 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 740 transitions. [2020-09-21 11:10:44,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:10:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 740 transitions. [2020-09-21 11:10:44,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:44,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:44,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:44,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:44,253 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:44,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:44,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1134068548, now seen corresponding path program 1 times [2020-09-21 11:10:44,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:44,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890685672] [2020-09-21 11:10:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:44,316 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:44,316 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:44,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:10:44,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:44 BoogieIcfgContainer [2020-09-21 11:10:44,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:44,350 INFO L168 Benchmark]: Toolchain (without parser) took 18271.96 ms. Allocated memory was 140.5 MB in the beginning and 502.3 MB in the end (delta: 361.8 MB). Free memory was 101.7 MB in the beginning and 162.9 MB in the end (delta: -61.2 MB). Peak memory consumption was 300.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:44,351 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:10:44,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.40 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 170.2 MB in the end (delta: -69.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:44,353 INFO L168 Benchmark]: Boogie Preprocessor took 117.85 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:44,354 INFO L168 Benchmark]: RCFGBuilder took 1137.93 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.4 MB in the beginning and 192.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:44,355 INFO L168 Benchmark]: TraceAbstraction took 16205.02 ms. Allocated memory was 235.9 MB in the beginning and 502.3 MB in the end (delta: 266.3 MB). Free memory was 191.5 MB in the beginning and 162.9 MB in the end (delta: 28.6 MB). Peak memory consumption was 294.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:44,358 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 800.40 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 170.2 MB in the end (delta: -69.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.85 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1137.93 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.4 MB in the beginning and 192.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16205.02 ms. Allocated memory was 235.9 MB in the beginning and 502.3 MB in the end (delta: 266.3 MB). Free memory was 191.5 MB in the beginning and 162.9 MB in the end (delta: 28.6 MB). Peak memory consumption was 294.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 [L896] COND TRUE 1 [L898] COND TRUE splverifierCounter < 4 [L904] tmp = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp) [L908] CALL waterRise() [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 [L908] RET waterRise() [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] COND TRUE \read(tmp___1) [L936] CALL stopSystem() [L866] COND FALSE !(\read(pumpRunning)) [L873] systemActive = 0 [L936] RET stopSystem() [L943] CALL timeShift() [L700] COND FALSE !(\read(pumpRunning)) [L707] COND FALSE !(\read(systemActive)) [L715] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND TRUE tmp___0 == 2 [L165] CALL, EXPR isPumpRunning() [L799] int retValue_acc ; [L802] retValue_acc = pumpRunning [L803] return (retValue_acc); [L165] RET, EXPR isPumpRunning() [L165] tmp___1 = isPumpRunning() [L167] COND FALSE !(\read(tmp___1)) [L171] CALL __automaton_fail() [L318] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 630 SDtfs, 878 SDslu, 322 SDs, 0 SdLazy, 1641 SolverSat, 561 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=613occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 240 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 81576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...