/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:10:15,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:10:15,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:10:15,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:10:15,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:10:15,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:10:15,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:10:15,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:10:15,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:10:15,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:10:15,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:10:15,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:10:15,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:10:15,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:10:15,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:10:15,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:10:15,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:10:15,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:10:15,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:10:15,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:10:15,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:10:15,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:10:15,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:10:15,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:10:15,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:10:15,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:10:15,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:10:15,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:10:15,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:10:15,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:10:15,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:10:15,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:10:15,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:10:15,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:10:15,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:10:15,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:10:15,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:10:15,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:10:15,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:10:15,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:10:15,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:10:15,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:10:15,272 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:10:15,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:10:15,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:10:15,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:10:15,275 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:10:15,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:10:15,276 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:10:15,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:10:15,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:10:15,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:10:15,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:10:15,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:10:15,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:10:15,279 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:10:15,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:10:15,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:10:15,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:10:15,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:10:15,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:10:15,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:10:15,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:10:15,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:15,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:10:15,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:10:15,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:10:15,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:10:15,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:10:15,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:10:15,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:10:15,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:10:15,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:10:15,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:10:15,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:10:15,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:10:15,791 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:10:15,792 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-09-21 11:10:15,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b217b3fe7/1f08dbcb6ee24e80a210bc438caf2b9c/FLAG23b4007e0 [2020-09-21 11:10:16,539 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:16,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-09-21 11:10:16,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b217b3fe7/1f08dbcb6ee24e80a210bc438caf2b9c/FLAG23b4007e0 [2020-09-21 11:10:16,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b217b3fe7/1f08dbcb6ee24e80a210bc438caf2b9c [2020-09-21 11:10:16,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:16,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:16,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:16,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:16,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:16,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:16" (1/1) ... [2020-09-21 11:10:16,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbadd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:16, skipping insertion in model container [2020-09-21 11:10:16,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:16" (1/1) ... [2020-09-21 11:10:16,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:16,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:17,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:17,389 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:17,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:17,517 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:17,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17 WrapperNode [2020-09-21 11:10:17,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:17,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:17,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:17,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:17,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (1/1) ... [2020-09-21 11:10:17,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (1/1) ... [2020-09-21 11:10:17,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (1/1) ... [2020-09-21 11:10:17,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (1/1) ... [2020-09-21 11:10:17,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (1/1) ... [2020-09-21 11:10:17,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (1/1) ... [2020-09-21 11:10:17,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (1/1) ... [2020-09-21 11:10:17,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:17,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:17,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:17,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:17,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:17,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:10:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:10:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:17,735 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:17,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:17,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:10:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:17,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:17,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:17,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:17,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:10:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:10:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:10:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:17,747 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:17,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:17,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:17,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:17,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:17,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:17,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:17,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:17,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:17,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:17,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:17,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:17,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:17,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:17,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:17,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:17,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:18,792 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:18,793 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:18,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:18 BoogieIcfgContainer [2020-09-21 11:10:18,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:18,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:18,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:18,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:18,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:16" (1/3) ... [2020-09-21 11:10:18,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ad5fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:18, skipping insertion in model container [2020-09-21 11:10:18,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:17" (2/3) ... [2020-09-21 11:10:18,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ad5fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:18, skipping insertion in model container [2020-09-21 11:10:18,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:18" (3/3) ... [2020-09-21 11:10:18,809 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-09-21 11:10:18,820 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:18,831 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:18,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:18,884 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:18,884 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:18,884 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:18,885 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:18,885 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:18,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:18,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:18,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:18,914 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-09-21 11:10:18,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:18,927 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:18,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:18,929 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:18,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1153926417, now seen corresponding path program 1 times [2020-09-21 11:10:18,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:18,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215660218] [2020-09-21 11:10:18,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:19,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:10:19,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,728 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:19,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:19,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:19,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:19,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:19,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:19,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:19,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:19,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:19,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:19,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:19,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:19,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:19,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:19,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:19,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:19,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:19,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:19,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:19,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:19,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:19,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:19,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:19,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:19,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:19,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215660218] [2020-09-21 11:10:19,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:19,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:19,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681800624] [2020-09-21 11:10:19,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:19,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:19,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:19,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:19,930 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-09-21 11:10:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:20,997 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2020-09-21 11:10:20,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:20,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:21,015 INFO L225 Difference]: With dead ends: 281 [2020-09-21 11:10:21,015 INFO L226 Difference]: Without dead ends: 152 [2020-09-21 11:10:21,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:21,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-21 11:10:21,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-09-21 11:10:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-21 11:10:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-09-21 11:10:21,115 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2020-09-21 11:10:21,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:21,115 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-09-21 11:10:21,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-09-21 11:10:21,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:21,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:21,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:21,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:21,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:21,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:21,121 INFO L82 PathProgramCache]: Analyzing trace with hash -548767927, now seen corresponding path program 1 times [2020-09-21 11:10:21,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:21,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362409064] [2020-09-21 11:10:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:21,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:10:21,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,598 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:21,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:21,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:21,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:21,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:21,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:21,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:21,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:21,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:21,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,658 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:21,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:21,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:21,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:21,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:10:21,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,670 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,671 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:21,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:21,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:21,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:21,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:21,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:21,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:21,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:21,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:21,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:21,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:21,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:21,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:21,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:21,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:21,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:21,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:21,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:21,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362409064] [2020-09-21 11:10:21,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:21,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:21,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919917383] [2020-09-21 11:10:21,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:21,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:21,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:21,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:21,697 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-09-21 11:10:22,223 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:23,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:23,071 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2020-09-21 11:10:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:23,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:23,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:23,075 INFO L225 Difference]: With dead ends: 205 [2020-09-21 11:10:23,075 INFO L226 Difference]: Without dead ends: 136 [2020-09-21 11:10:23,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-21 11:10:23,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-09-21 11:10:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-21 11:10:23,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2020-09-21 11:10:23,113 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2020-09-21 11:10:23,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:23,114 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2020-09-21 11:10:23,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2020-09-21 11:10:23,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:10:23,116 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:23,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:23,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:23,117 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:23,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:23,118 INFO L82 PathProgramCache]: Analyzing trace with hash 196992317, now seen corresponding path program 1 times [2020-09-21 11:10:23,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:23,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021270993] [2020-09-21 11:10:23,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:23,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:23,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:23,581 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:23,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:23,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:10:23,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:23,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-21 11:10:23,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:23,902 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:23,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:24,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:24,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:24,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:24,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:24,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:24,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:24,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-21 11:10:24,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:24,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:24,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:24,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:24,076 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:24,076 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:24,076 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:24,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:24,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:24,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:24,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:24,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:24,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:24,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:24,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:24,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:24,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:24,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:24,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:24,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:24,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:24,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:24,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:24,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:24,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:24,089 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:24,089 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:24,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:24,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:24,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:24,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:24,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:24,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:24,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:24,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:24,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:24,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:24,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:24,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:24,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:24,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:24,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:24,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:24,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:24,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:10:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:24,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:24,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:24,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:24,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:24,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:24,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:24,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:24,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:24,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:24,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:24,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:24,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:24,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:24,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:24,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:24,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:24,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:24,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:24,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:24,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:24,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:24,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:24,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:24,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:24,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:24,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:24,112 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:24,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:24,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:24,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:24,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:24,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:24,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021270993] [2020-09-21 11:10:24,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:24,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:24,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114285176] [2020-09-21 11:10:24,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:24,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:24,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:24,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:24,124 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 4 states. [2020-09-21 11:10:24,457 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:25,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:25,858 INFO L93 Difference]: Finished difference Result 320 states and 392 transitions. [2020-09-21 11:10:25,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:25,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:10:25,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:25,863 INFO L225 Difference]: With dead ends: 320 [2020-09-21 11:10:25,863 INFO L226 Difference]: Without dead ends: 233 [2020-09-21 11:10:25,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:25,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-09-21 11:10:25,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 186. [2020-09-21 11:10:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-09-21 11:10:25,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2020-09-21 11:10:25,921 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 57 [2020-09-21 11:10:25,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:25,922 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2020-09-21 11:10:25,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:25,922 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2020-09-21 11:10:25,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:25,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:25,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:25,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:25,925 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:25,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:25,926 INFO L82 PathProgramCache]: Analyzing trace with hash 925372224, now seen corresponding path program 1 times [2020-09-21 11:10:25,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:25,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829689064] [2020-09-21 11:10:25,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:26,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:26,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:26,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:26,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:26,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:26,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:26,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-09-21 11:10:26,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:26,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:26,774 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:26,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:26,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:26,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:26,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:26,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:26,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:26,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:10:26,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:26,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:26,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:26,939 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:26,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:26,940 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:26,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:26,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:26,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:26,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:26,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:26,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:26,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:26,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:26,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:26,948 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:26,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:26,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:26,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:26,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:26,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:26,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:26,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:26,957 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:26,957 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:26,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:26,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:26,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:26,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:26,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:26,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:26,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:26,967 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:26,967 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:26,967 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:26,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:26,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:26,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:26,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:26,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:26,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:26,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:26,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:26,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:26,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:26,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:26,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:26,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:26,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:26,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:10:26,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:27,005 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:27,006 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:27,006 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:27,006 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:27,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:27,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:27,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:27,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:27,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:27,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:27,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:27,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:27,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:27,016 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:27,016 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:27,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:27,017 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:27,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:27,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:27,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:27,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:27,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:27,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:27,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:27,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:27,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:27,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:27,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:27,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:27,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:27,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:27,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:27,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:27,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:27,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:27,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:27,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829689064] [2020-09-21 11:10:27,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:27,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:27,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994225454] [2020-09-21 11:10:27,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:27,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:27,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:27,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:27,075 INFO L87 Difference]: Start difference. First operand 186 states and 219 transitions. Second operand 8 states. [2020-09-21 11:10:27,550 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:28,951 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:29,311 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:29,642 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:29,926 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:30,639 INFO L93 Difference]: Finished difference Result 570 states and 742 transitions. [2020-09-21 11:10:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:30,642 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:10:30,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:30,648 INFO L225 Difference]: With dead ends: 570 [2020-09-21 11:10:30,648 INFO L226 Difference]: Without dead ends: 408 [2020-09-21 11:10:30,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:10:30,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-21 11:10:30,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 347. [2020-09-21 11:10:30,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-21 11:10:30,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 417 transitions. [2020-09-21 11:10:30,737 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 417 transitions. Word has length 63 [2020-09-21 11:10:30,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:30,738 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 417 transitions. [2020-09-21 11:10:30,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 417 transitions. [2020-09-21 11:10:30,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:30,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:30,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:30,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:30,743 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:30,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:30,743 INFO L82 PathProgramCache]: Analyzing trace with hash -910069242, now seen corresponding path program 1 times [2020-09-21 11:10:30,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:30,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566245288] [2020-09-21 11:10:30,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:30,811 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:30,811 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:30,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:30,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:30 BoogieIcfgContainer [2020-09-21 11:10:30,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:30,844 INFO L168 Benchmark]: Toolchain (without parser) took 14014.80 ms. Allocated memory was 140.5 MB in the beginning and 435.2 MB in the end (delta: 294.6 MB). Free memory was 101.9 MB in the beginning and 298.6 MB in the end (delta: -196.7 MB). Peak memory consumption was 98.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:30,845 INFO L168 Benchmark]: CDTParser took 0.73 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. [2020-09-21 11:10:30,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.82 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 173.6 MB in the end (delta: -72.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:30,847 INFO L168 Benchmark]: Boogie Preprocessor took 102.27 ms. Allocated memory is still 205.0 MB. Free memory was 173.6 MB in the beginning and 169.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:30,848 INFO L168 Benchmark]: RCFGBuilder took 1178.16 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 169.0 MB in the beginning and 197.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:30,849 INFO L168 Benchmark]: TraceAbstraction took 12041.96 ms. Allocated memory was 235.9 MB in the beginning and 435.2 MB in the end (delta: 199.2 MB). Free memory was 197.1 MB in the beginning and 298.6 MB in the end (delta: -101.5 MB). Peak memory consumption was 97.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:30,853 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 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 683.82 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 173.6 MB in the end (delta: -72.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.27 ms. Allocated memory is still 205.0 MB. Free memory was 173.6 MB in the beginning and 169.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1178.16 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 169.0 MB in the beginning and 197.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12041.96 ms. Allocated memory was 235.9 MB in the beginning and 435.2 MB in the end (delta: 199.2 MB). Free memory was 197.1 MB in the beginning and 298.6 MB in the end (delta: -101.5 MB). Peak memory consumption was 97.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 544 SDslu, 228 SDs, 0 SdLazy, 1140 SolverSat, 300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 165 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 60460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...