/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:01:56,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:01:56,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:01:56,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:01:56,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:01:56,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:01:56,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:01:56,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:01:56,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:01:56,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:01:56,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:01:56,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:01:56,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:01:56,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:01:56,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:01:56,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:01:56,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:01:56,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:01:56,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:01:56,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:01:56,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:01:56,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:01:56,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:01:56,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:01:56,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:01:56,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:01:56,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:01:56,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:01:56,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:01:56,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:01:56,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:01:56,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:01:56,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:01:56,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:01:56,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:01:56,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:01:56,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:01:56,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:01:56,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:01:56,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:01:56,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:01:56,150 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 [2020-09-24 18:01:56,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:01:56,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:01:56,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:01:56,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:01:56,206 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:01:56,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:01:56,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:01:56,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:01:56,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:01:56,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:01:56,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:01:56,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:01:56,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:01:56,209 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:01:56,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:01:56,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:01:56,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:01:56,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:01:56,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:01:56,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:01:56,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:01:56,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:01:56,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:01:56,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:01:56,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:01:56,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:01:56,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:01:56,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:01:56,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:01:56,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:01:56,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:01:56,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:01:56,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:01:56,709 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:01:56,710 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:01:56,711 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-09-24 18:01:56,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee6c0781a/e27d0621def24de5953f6e39090d7464/FLAGab4a438a7 [2020-09-24 18:01:57,362 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:01:57,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-09-24 18:01:57,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee6c0781a/e27d0621def24de5953f6e39090d7464/FLAGab4a438a7 [2020-09-24 18:01:57,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee6c0781a/e27d0621def24de5953f6e39090d7464 [2020-09-24 18:01:57,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:01:57,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:01:57,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:01:57,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:01:57,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:01:57,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:01:57" (1/1) ... [2020-09-24 18:01:57,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:57, skipping insertion in model container [2020-09-24 18:01:57,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:01:57" (1/1) ... [2020-09-24 18:01:57,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:01:57,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:01:58,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:01:58,290 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:01:58,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:01:58,426 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:01:58,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58 WrapperNode [2020-09-24 18:01:58,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:01:58,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:01:58,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:01:58,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:01:58,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:01:58,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:01:58,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:01:58,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:01:58,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (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 [2020-09-24 18:01:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:01:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:01:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:01:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:01:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:01:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:01:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:01:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:01:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:01:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:01:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:01:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:01:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:01:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:01:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:01:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:01:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:01:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:01:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:01:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:01:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:01:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:01:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:01:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:01:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:01:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:01:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:01:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:01:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:01:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:01:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:01:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:01:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:01:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:01:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:01:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:01:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:01:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:01:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:01:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:01:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:01:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:01:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:01:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:01:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:01:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:01:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:01:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:01:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:01:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:01:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:01:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:01:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:01:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:01:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:01:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:01:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:01:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:01:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:01:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:01:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:01:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:01:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:01:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:01:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:01:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:01:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:01:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:01:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:01:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:01:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:01:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:01:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:01:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:01:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:01:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:01:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:01:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:01:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:01:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:01:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:01:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:01:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:01:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:01:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:01:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:01:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:01:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:01:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:01:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:01:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:01:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:01:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:01:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:01:59,721 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:01:59,722 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:01:59,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:59 BoogieIcfgContainer [2020-09-24 18:01:59,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:01:59,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:01:59,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:01:59,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:01:59,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:01:57" (1/3) ... [2020-09-24 18:01:59,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48bf1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:59, skipping insertion in model container [2020-09-24 18:01:59,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (2/3) ... [2020-09-24 18:01:59,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48bf1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:59, skipping insertion in model container [2020-09-24 18:01:59,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:59" (3/3) ... [2020-09-24 18:01:59,739 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-09-24 18:01:59,749 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:01:59,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:01:59,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:01:59,810 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:01:59,810 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:01:59,811 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:01:59,811 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:01:59,811 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:01:59,811 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:01:59,811 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:01:59,811 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:01:59,836 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-24 18:01:59,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:01:59,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:59,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:59,857 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:59,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:59,865 INFO L82 PathProgramCache]: Analyzing trace with hash -266008754, now seen corresponding path program 1 times [2020-09-24 18:01:59,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:59,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910599515] [2020-09-24 18:01:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:00,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:00,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:02,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:02:05,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:05,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 18:02:05,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:02:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 18:02:05,658 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:05,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:05,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 18:02:05,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:05,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:05,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:05,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:05,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:02:05,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:05,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:02:05,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:05,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:02:05,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:02:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:05,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:05,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:02:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:05,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:05,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:02:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:05,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:05,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:05,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910599515] [2020-09-24 18:02:05,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:05,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:02:05,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804701090] [2020-09-24 18:02:05,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:02:05,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:06,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:02:06,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:06,016 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 3 states. [2020-09-24 18:02:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:07,737 INFO L93 Difference]: Finished difference Result 506 states and 598 transitions. [2020-09-24 18:02:07,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:02:07,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:02:07,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:07,771 INFO L225 Difference]: With dead ends: 506 [2020-09-24 18:02:07,772 INFO L226 Difference]: Without dead ends: 312 [2020-09-24 18:02:07,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:07,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-24 18:02:07,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-24 18:02:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 18:02:07,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-09-24 18:02:07,959 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 153 [2020-09-24 18:02:07,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:07,962 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-09-24 18:02:07,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:02:07,962 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-09-24 18:02:07,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:02:07,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:07,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:07,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:02:07,974 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:07,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:07,982 INFO L82 PathProgramCache]: Analyzing trace with hash 579021377, now seen corresponding path program 1 times [2020-09-24 18:02:07,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:07,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271577556] [2020-09-24 18:02:07,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:08,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:08,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:02:13,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:13,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 18:02:13,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:02:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:02:13,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,363 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:13,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:13,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 18:02:13,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:13,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:13,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:13,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:13,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:13,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:13,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:13,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:13,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:02:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:13,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:13,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:02:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:13,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:13,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:02:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:13,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:13,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:13,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271577556] [2020-09-24 18:02:13,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:13,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:02:13,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786484762] [2020-09-24 18:02:13,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:02:13,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:13,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:02:13,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:02:13,650 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 4 states. [2020-09-24 18:02:14,267 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:02:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:15,328 INFO L93 Difference]: Finished difference Result 410 states and 459 transitions. [2020-09-24 18:02:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:02:15,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:02:15,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:15,337 INFO L225 Difference]: With dead ends: 410 [2020-09-24 18:02:15,337 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 18:02:15,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 18:02:15,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 258. [2020-09-24 18:02:15,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-09-24 18:02:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 277 transitions. [2020-09-24 18:02:15,403 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 277 transitions. Word has length 154 [2020-09-24 18:02:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:15,406 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 277 transitions. [2020-09-24 18:02:15,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:02:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 277 transitions. [2020-09-24 18:02:15,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 18:02:15,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:15,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:15,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:02:15,409 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:15,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:15,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1537433841, now seen corresponding path program 1 times [2020-09-24 18:02:15,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:15,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435127921] [2020-09-24 18:02:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:15,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:15,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:02:18,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:02:18,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2845 [2020-09-24 18:02:18,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:18,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:02:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:02:18,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,564 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:18,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:18,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 18:02:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:18,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:18,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:18,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:18,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:18,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:18,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:18,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:18,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:02:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:02:18,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:18,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:02:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:02:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:18,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:02:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:18,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:02:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:18,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:18,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435127921] [2020-09-24 18:02:18,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:18,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:02:18,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808689068] [2020-09-24 18:02:18,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:02:18,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:18,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:02:18,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:18,797 INFO L87 Difference]: Start difference. First operand 258 states and 277 transitions. Second operand 5 states. [2020-09-24 18:02:19,285 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:21,171 INFO L93 Difference]: Finished difference Result 624 states and 716 transitions. [2020-09-24 18:02:21,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:02:21,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 18:02:21,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:21,181 INFO L225 Difference]: With dead ends: 624 [2020-09-24 18:02:21,181 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 18:02:21,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:02:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 18:02:21,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 390. [2020-09-24 18:02:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-24 18:02:21,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 427 transitions. [2020-09-24 18:02:21,247 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 427 transitions. Word has length 167 [2020-09-24 18:02:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:21,248 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 427 transitions. [2020-09-24 18:02:21,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:02:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 427 transitions. [2020-09-24 18:02:21,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 18:02:21,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:21,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:21,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:02:21,251 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:21,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:21,251 INFO L82 PathProgramCache]: Analyzing trace with hash 868861772, now seen corresponding path program 1 times [2020-09-24 18:02:21,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:21,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485670236] [2020-09-24 18:02:21,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:21,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:02:23,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1724 [2020-09-24 18:02:23,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:02:23,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 18:02:23,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 18:02:23,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,313 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:23,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-24 18:02:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 18:02:23,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:23,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:23,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:23,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:23,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:23,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:23,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:02:23,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:23,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:23,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:23,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:23,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:23,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:02:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:02:23,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:23,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:23,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:23,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:02:23,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:02:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:23,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:23,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:23,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:02:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:23,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:02:23,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:02:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:23,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 18:02:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:23,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:23,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:23,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:23,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:23,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:23,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485670236] [2020-09-24 18:02:23,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:23,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:02:23,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411157084] [2020-09-24 18:02:23,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:02:23,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:23,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:02:23,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:02:23,750 INFO L87 Difference]: Start difference. First operand 390 states and 427 transitions. Second operand 9 states. [2020-09-24 18:02:24,287 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:26,062 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:26,657 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 18:02:27,008 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:27,395 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:27,695 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:02:28,016 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:02:28,320 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:29,379 INFO L93 Difference]: Finished difference Result 1036 states and 1223 transitions. [2020-09-24 18:02:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:02:29,380 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 18:02:29,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:29,386 INFO L225 Difference]: With dead ends: 1036 [2020-09-24 18:02:29,387 INFO L226 Difference]: Without dead ends: 756 [2020-09-24 18:02:29,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:02:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-24 18:02:29,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 657. [2020-09-24 18:02:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-24 18:02:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 735 transitions. [2020-09-24 18:02:29,487 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 735 transitions. Word has length 172 [2020-09-24 18:02:29,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:29,488 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 735 transitions. [2020-09-24 18:02:29,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:02:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 735 transitions. [2020-09-24 18:02:29,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:02:29,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:29,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:29,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:02:29,494 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:29,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:29,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1844704864, now seen corresponding path program 1 times [2020-09-24 18:02:29,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:29,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551403061] [2020-09-24 18:02:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:02:29,565 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:02:29,565 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:02:29,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:02:29,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:02:29 BoogieIcfgContainer [2020-09-24 18:02:29,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:02:29,601 INFO L168 Benchmark]: Toolchain (without parser) took 31966.26 ms. Allocated memory was 140.5 MB in the beginning and 659.0 MB in the end (delta: 518.5 MB). Free memory was 103.1 MB in the beginning and 90.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 531.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:29,602 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:02:29,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.08 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 173.0 MB in the end (delta: -70.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:29,604 INFO L168 Benchmark]: Boogie Preprocessor took 91.53 ms. Allocated memory is still 203.9 MB. Free memory was 173.0 MB in the beginning and 168.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:29,605 INFO L168 Benchmark]: RCFGBuilder took 1210.46 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 168.3 MB in the beginning and 176.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:29,606 INFO L168 Benchmark]: TraceAbstraction took 29867.60 ms. Allocated memory was 237.5 MB in the beginning and 659.0 MB in the end (delta: 421.5 MB). Free memory was 176.4 MB in the beginning and 90.1 MB in the end (delta: 86.3 MB). Peak memory consumption was 507.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:29,610 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.08 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 173.0 MB in the end (delta: -70.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.53 ms. Allocated memory is still 203.9 MB. Free memory was 173.0 MB in the beginning and 168.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1210.46 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 168.3 MB in the beginning and 176.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29867.60 ms. Allocated memory was 237.5 MB in the beginning and 659.0 MB in the end (delta: 421.5 MB). Free memory was 176.4 MB in the beginning and 90.1 MB in the end (delta: 86.3 MB). Peak memory consumption was 507.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 [L896] COND TRUE 1 [L898] COND TRUE splverifierCounter < 4 [L904] tmp = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp) [L908] CALL waterRise() [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 [L908] RET waterRise() [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] COND TRUE \read(tmp___1) [L936] CALL stopSystem() [L866] COND FALSE !(\read(pumpRunning)) [L873] systemActive = 0 [L936] RET stopSystem() [L943] CALL timeShift() [L700] COND FALSE !(\read(pumpRunning)) [L707] COND FALSE !(\read(systemActive)) [L715] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND TRUE tmp___0 == 2 [L165] CALL, EXPR isPumpRunning() [L799] int retValue_acc ; [L802] retValue_acc = pumpRunning [L803] return (retValue_acc); [L165] RET, EXPR isPumpRunning() [L165] tmp___1 = isPumpRunning() [L167] COND FALSE !(\read(tmp___1)) [L171] CALL __automaton_fail() [L318] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1033 SDtfs, 1252 SDslu, 873 SDs, 0 SdLazy, 2195 SolverSat, 402 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred 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, 266 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 247682 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...