/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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:10:46,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:10:47,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:10:47,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:10:47,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:10:47,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:10:47,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:10:47,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:10:47,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:10:47,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:10:47,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:10:47,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:10:47,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:10:47,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:10:47,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:10:47,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:10:47,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:10:47,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:10:47,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:10:47,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:10:47,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:10:47,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:10:47,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:10:47,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:10:47,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:10:47,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:10:47,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:10:47,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:10:47,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:10:47,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:10:47,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:10:47,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:10:47,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:10:47,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:10:47,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:10:47,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:10:47,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:10:47,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:10:47,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:10:47,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:10:47,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:10:47,130 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 11:10:47,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:10:47,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:10:47,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:10:47,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:10:47,172 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:10:47,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:10:47,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:10:47,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:10:47,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:10:47,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:10:47,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:10:47,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:10:47,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:10:47,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:10:47,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:10:47,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:10:47,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:10:47,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:10:47,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:10:47,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:10:47,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:10:47,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:47,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:10:47,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:10:47,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:10:47,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:10:47,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:10:47,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:10:47,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:10:47,179 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 11:10:47,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:10:47,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:10:47,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:10:47,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:10:47,651 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:10:47,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-09-21 11:10:47,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e30958448/963c0506a3b04aa1afff3257926606f5/FLAG73cb1f408 [2020-09-21 11:10:48,380 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:48,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-09-21 11:10:48,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e30958448/963c0506a3b04aa1afff3257926606f5/FLAG73cb1f408 [2020-09-21 11:10:48,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e30958448/963c0506a3b04aa1afff3257926606f5 [2020-09-21 11:10:48,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:48,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:48,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:48,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:48,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:48,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:48,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48, skipping insertion in model container [2020-09-21 11:10:48,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:48,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:48,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:49,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:49,163 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:49,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:49,343 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:49,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49 WrapperNode [2020-09-21 11:10:49,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:49,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:49,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:49,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:49,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (1/1) ... [2020-09-21 11:10:49,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (1/1) ... [2020-09-21 11:10:49,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (1/1) ... [2020-09-21 11:10:49,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (1/1) ... [2020-09-21 11:10:49,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (1/1) ... [2020-09-21 11:10:49,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (1/1) ... [2020-09-21 11:10:49,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (1/1) ... [2020-09-21 11:10:49,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:49,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:49,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:49,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:49,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (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 11:10:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:10:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:10:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 11:10:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:10:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:10:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:10:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:10:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:10:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:10:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:10:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:10:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:10:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:10:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:10:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:10:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 11:10:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:50,721 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:50,721 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:50,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:50 BoogieIcfgContainer [2020-09-21 11:10:50,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:50,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:50,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:50,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:50,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:48" (1/3) ... [2020-09-21 11:10:50,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23864f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:50, skipping insertion in model container [2020-09-21 11:10:50,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:49" (2/3) ... [2020-09-21 11:10:50,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23864f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:50, skipping insertion in model container [2020-09-21 11:10:50,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:50" (3/3) ... [2020-09-21 11:10:50,737 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-09-21 11:10:50,748 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:50,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:50,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:50,811 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:50,812 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:50,812 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:50,812 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:50,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:50,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:50,813 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:50,813 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2020-09-21 11:10:50,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:50,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:50,857 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 11:10:50,857 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:50,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:50,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1970857402, now seen corresponding path program 1 times [2020-09-21 11:10:50,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:50,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828835936] [2020-09-21 11:10:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:51,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:10:51,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:51,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-21 11:10:51,716 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:10:51,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,869 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:51,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:51,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:10:51,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:51,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:51,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:51,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,902 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:51,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:51,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:51,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:51,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:51,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,928 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,928 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:51,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,969 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 11:10:51,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828835936] [2020-09-21 11:10:51,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:51,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:51,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159651801] [2020-09-21 11:10:51,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:51,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:52,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:52,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:52,007 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 3 states. [2020-09-21 11:10:53,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:53,384 INFO L93 Difference]: Finished difference Result 371 states and 484 transitions. [2020-09-21 11:10:53,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:53,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:53,405 INFO L225 Difference]: With dead ends: 371 [2020-09-21 11:10:53,406 INFO L226 Difference]: Without dead ends: 200 [2020-09-21 11:10:53,412 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 11:10:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-09-21 11:10:53,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 162. [2020-09-21 11:10:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-21 11:10:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 194 transitions. [2020-09-21 11:10:53,523 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 194 transitions. Word has length 52 [2020-09-21 11:10:53,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:53,524 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 194 transitions. [2020-09-21 11:10:53,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:53,524 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 194 transitions. [2020-09-21 11:10:53,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:53,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:53,529 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 11:10:53,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:53,529 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:53,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:53,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1981154653, now seen corresponding path program 1 times [2020-09-21 11:10:53,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:53,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178294679] [2020-09-21 11:10:53,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:53,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:10:53,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:53,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:53,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:53,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,858 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:53,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:53,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:53,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:53,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,929 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:53,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,951 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 11:10:53,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178294679] [2020-09-21 11:10:53,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:53,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:53,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027413464] [2020-09-21 11:10:53,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:53,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:53,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:53,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:53,955 INFO L87 Difference]: Start difference. First operand 162 states and 194 transitions. Second operand 4 states. [2020-09-21 11:10:54,448 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:55,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:55,722 INFO L93 Difference]: Finished difference Result 298 states and 367 transitions. [2020-09-21 11:10:55,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:55,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:55,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:55,726 INFO L225 Difference]: With dead ends: 298 [2020-09-21 11:10:55,726 INFO L226 Difference]: Without dead ends: 184 [2020-09-21 11:10:55,728 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 11:10:55,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-09-21 11:10:55,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 153. [2020-09-21 11:10:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-21 11:10:55,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 182 transitions. [2020-09-21 11:10:55,777 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 182 transitions. Word has length 53 [2020-09-21 11:10:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:55,778 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 182 transitions. [2020-09-21 11:10:55,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:55,778 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 182 transitions. [2020-09-21 11:10:55,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:10:55,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:55,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:55,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:55,781 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:55,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:55,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1942602443, now seen corresponding path program 1 times [2020-09-21 11:10:55,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:55,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886905517] [2020-09-21 11:10:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:56,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:10:56,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-21 11:10:56,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:56,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:56,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,554 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:56,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,671 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:10:56,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:56,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:56,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:56,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:56,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:10:56,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:56,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:10:56,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:56,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:56,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:56,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:56,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:10:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,757 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:56,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:56,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,777 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 11:10:56,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886905517] [2020-09-21 11:10:56,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:56,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:56,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740535686] [2020-09-21 11:10:56,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:56,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:56,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:56,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:56,780 INFO L87 Difference]: Start difference. First operand 153 states and 182 transitions. Second operand 4 states. [2020-09-21 11:10:57,116 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:59,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:59,421 INFO L93 Difference]: Finished difference Result 458 states and 570 transitions. [2020-09-21 11:10:59,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:59,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:10:59,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:59,427 INFO L225 Difference]: With dead ends: 458 [2020-09-21 11:10:59,427 INFO L226 Difference]: Without dead ends: 329 [2020-09-21 11:10:59,428 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 11:10:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-09-21 11:10:59,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 276. [2020-09-21 11:10:59,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-21 11:10:59,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 335 transitions. [2020-09-21 11:10:59,507 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 335 transitions. Word has length 57 [2020-09-21 11:10:59,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:59,507 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 335 transitions. [2020-09-21 11:10:59,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:59,507 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 335 transitions. [2020-09-21 11:10:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:59,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:59,511 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 11:10:59,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:59,511 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:59,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:59,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1716572839, now seen corresponding path program 1 times [2020-09-21 11:10:59,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:59,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834357288] [2020-09-21 11:10:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:59,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-21 11:10:59,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:59,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:59,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:59,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:00,274 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:11:00,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:11:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:00,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:11:00,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:00,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:11:00,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:00,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:11:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:11:00,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:00,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:00,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:11:00,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:00,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:11:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:11:00,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:00,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:11:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:00,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:11:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,386 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,386 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,386 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,387 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:00,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:00,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:11:00,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:00,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:11:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:11:00,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:00,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:00,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:00,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:11:00,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:00,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:11:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,415 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,415 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,415 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:11:00,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:00,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:11:00,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:11:00,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:11:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,423 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,423 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:00,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:00,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:00,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:11:00,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:11:00,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:11:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:00,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:11:00,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:11:00,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:11:00,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:11:00,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:11:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:00,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:00,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:00,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:00,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:00,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:00,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:00,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:00,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:00,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:11:00,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:11:00,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:11:00,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:00,461 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 11:11:00,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834357288] [2020-09-21 11:11:00,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:11:00,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:11:00,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911586411] [2020-09-21 11:11:00,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:11:00,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:11:00,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:11:00,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:11:00,463 INFO L87 Difference]: Start difference. First operand 276 states and 335 transitions. Second operand 8 states. [2020-09-21 11:11:00,864 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:11:02,599 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:11:03,052 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:11:03,379 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:11:03,714 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:11:04,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:11:04,887 INFO L93 Difference]: Finished difference Result 864 states and 1130 transitions. [2020-09-21 11:11:04,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:11:04,888 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:11:04,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:11:04,894 INFO L225 Difference]: With dead ends: 864 [2020-09-21 11:11:04,894 INFO L226 Difference]: Without dead ends: 612 [2020-09-21 11:11:04,896 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 11:11:04,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-09-21 11:11:05,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 539. [2020-09-21 11:11:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-09-21 11:11:05,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 665 transitions. [2020-09-21 11:11:05,009 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 665 transitions. Word has length 63 [2020-09-21 11:11:05,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:11:05,010 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 665 transitions. [2020-09-21 11:11:05,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:11:05,010 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 665 transitions. [2020-09-21 11:11:05,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:11:05,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:11:05,014 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 11:11:05,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:11:05,015 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:11:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:11:05,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1081719041, now seen corresponding path program 1 times [2020-09-21 11:11:05,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:11:05,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740198094] [2020-09-21 11:11:05,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:11:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:11:05,082 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:11:05,082 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:11:05,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:11:05,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:11:05 BoogieIcfgContainer [2020-09-21 11:11:05,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:11:05,117 INFO L168 Benchmark]: Toolchain (without parser) took 16512.02 ms. Allocated memory was 139.5 MB in the beginning and 504.4 MB in the end (delta: 364.9 MB). Free memory was 101.1 MB in the beginning and 247.6 MB in the end (delta: -146.5 MB). Peak memory consumption was 218.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:05,118 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:11:05,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.77 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 170.4 MB in the end (delta: -69.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:05,120 INFO L168 Benchmark]: Boogie Preprocessor took 125.08 ms. Allocated memory is still 203.4 MB. Free memory was 170.4 MB in the beginning and 165.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:05,121 INFO L168 Benchmark]: RCFGBuilder took 1257.85 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.5 MB in the beginning and 192.1 MB in the end (delta: -26.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:05,122 INFO L168 Benchmark]: TraceAbstraction took 14386.41 ms. Allocated memory was 235.9 MB in the beginning and 504.4 MB in the end (delta: 268.4 MB). Free memory was 192.1 MB in the beginning and 247.6 MB in the end (delta: -55.5 MB). Peak memory consumption was 212.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:05,126 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.77 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 170.4 MB in the end (delta: -69.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.08 ms. Allocated memory is still 203.4 MB. Free memory was 170.4 MB in the beginning and 165.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1257.85 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.5 MB in the beginning and 192.1 MB in the end (delta: -26.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14386.41 ms. Allocated memory was 235.9 MB in the beginning and 504.4 MB in the end (delta: 268.4 MB). Free memory was 192.1 MB in the beginning and 247.6 MB in the end (delta: -55.5 MB). Peak memory consumption was 212.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] 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() [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 [L454] COND TRUE 1 [L456] COND TRUE splverifierCounter < 4 [L462] tmp = __VERIFIER_nondet_int() [L464] COND TRUE \read(tmp) [L466] CALL waterRise() [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 [L466] RET waterRise() [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___2)) [L488] tmp___1 = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp___1) [L492] CALL stopSystem() [L432] COND FALSE !(\read(pumpRunning)) [L439] systemActive = 0 [L492] RET stopSystem() [L499] CALL timeShift() [L196] COND FALSE !(\read(pumpRunning)) [L203] COND FALSE !(\read(systemActive)) [L211] CALL __utac_acc__Specification3_spec__1() [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; [L631] CALL, EXPR isMethaneLevelCritical() [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); [L631] RET, EXPR isMethaneLevelCritical() [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) [L637] CALL, EXPR getWaterLevel() [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); [L637] RET, EXPR getWaterLevel() [L637] tmp___0 = getWaterLevel() [L639] COND TRUE tmp___0 == 2 [L641] CALL, EXPR isPumpRunning() [L346] int retValue_acc ; [L349] retValue_acc = pumpRunning [L350] return (retValue_acc); [L641] RET, EXPR isPumpRunning() [L641] tmp___1 = isPumpRunning() [L643] COND FALSE !(\read(tmp___1)) [L647] CALL __automaton_fail() [L619] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 261 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 617 SDtfs, 967 SDslu, 270 SDs, 0 SdLazy, 1558 SolverSat, 571 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=539occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 195 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 60460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...