/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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:20,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:20,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:20,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:20,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:20,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:20,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:21,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:21,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:21,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:21,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:21,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:21,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:21,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:21,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:21,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:21,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:21,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:21,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:21,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:21,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:21,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:21,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:21,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:21,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:21,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:21,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:21,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:21,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:21,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:21,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:21,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:21,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:21,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:21,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:21,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:21,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:21,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:21,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:21,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:21,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:21,062 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 11:09:21,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:21,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:21,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:21,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:21,117 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:21,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:21,118 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:21,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:21,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:21,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:21,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:21,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:21,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:21,120 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:21,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:21,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:21,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:21,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:21,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:21,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:21,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:21,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:21,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:21,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:21,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:21,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:21,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:21,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:21,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:21,123 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 11:09:21,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:21,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:21,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:21,633 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:21,633 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:21,635 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-21 11:09:21,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3e42e3a9/ba7d42f1f1bc4ba6b78c2ffb9c195fa0/FLAG58e98af51 [2020-09-21 11:09:22,307 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:22,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-21 11:09:22,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3e42e3a9/ba7d42f1f1bc4ba6b78c2ffb9c195fa0/FLAG58e98af51 [2020-09-21 11:09:22,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3e42e3a9/ba7d42f1f1bc4ba6b78c2ffb9c195fa0 [2020-09-21 11:09:22,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:22,593 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:22,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:22,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:22,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:22,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:22" (1/1) ... [2020-09-21 11:09:22,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afcb89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:22, skipping insertion in model container [2020-09-21 11:09:22,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:22" (1/1) ... [2020-09-21 11:09:22,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:22,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:23,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:23,214 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:23,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:23,363 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:23,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23 WrapperNode [2020-09-21 11:09:23,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:23,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:23,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:23,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:23,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (1/1) ... [2020-09-21 11:09:23,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (1/1) ... [2020-09-21 11:09:23,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (1/1) ... [2020-09-21 11:09:23,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (1/1) ... [2020-09-21 11:09:23,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (1/1) ... [2020-09-21 11:09:23,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (1/1) ... [2020-09-21 11:09:23,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (1/1) ... [2020-09-21 11:09:23,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:23,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:23,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:23,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:23,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (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 11:09:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:09:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:09:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:24,736 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:24,736 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:24,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:24 BoogieIcfgContainer [2020-09-21 11:09:24,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:24,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:24,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:24,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:24,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:22" (1/3) ... [2020-09-21 11:09:24,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5354b9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:24, skipping insertion in model container [2020-09-21 11:09:24,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:23" (2/3) ... [2020-09-21 11:09:24,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5354b9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:24, skipping insertion in model container [2020-09-21 11:09:24,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:24" (3/3) ... [2020-09-21 11:09:24,758 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-09-21 11:09:24,770 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:24,782 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:24,805 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:24,839 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:24,840 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:24,840 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:24,840 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:24,840 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:24,840 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:24,840 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:24,841 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-09-21 11:09:24,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:24,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:24,875 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 11:09:24,876 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:24,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:24,882 INFO L82 PathProgramCache]: Analyzing trace with hash 385551815, now seen corresponding path program 1 times [2020-09-21 11:09:24,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:24,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703103626] [2020-09-21 11:09:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:25,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:09:25,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:25,664 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:25,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,680 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:25,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:25,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:25,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:25,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:25,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:25,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:25,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:25,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:25,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:25,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:25,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:25,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:25,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:25,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:25,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:25,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:25,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,787 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:25,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:25,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:25,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:25,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:25,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:25,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:25,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:25,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:25,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:25,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:25,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:25,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:25,813 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 11:09:25,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703103626] [2020-09-21 11:09:25,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:25,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:25,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847243681] [2020-09-21 11:09:25,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:25,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:25,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:25,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:25,849 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 3 states. [2020-09-21 11:09:26,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:26,899 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2020-09-21 11:09:26,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:26,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:26,919 INFO L225 Difference]: With dead ends: 249 [2020-09-21 11:09:26,920 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 11:09:26,925 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 11:09:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 11:09:27,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-21 11:09:27,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:09:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-09-21 11:09:27,018 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 52 [2020-09-21 11:09:27,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:27,018 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-09-21 11:09:27,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:27,019 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-09-21 11:09:27,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:27,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:27,023 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 11:09:27,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:27,024 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:27,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:27,024 INFO L82 PathProgramCache]: Analyzing trace with hash 881400109, now seen corresponding path program 1 times [2020-09-21 11:09:27,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:27,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442707097] [2020-09-21 11:09:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:27,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:09:27,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:27,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:27,442 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:27,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:27,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,494 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:27,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:27,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,500 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 25 [2020-09-21 11:09:27,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,530 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:27,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:27,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:27,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:27,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:27,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:27,562 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 11:09:27,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442707097] [2020-09-21 11:09:27,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:27,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:27,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500523288] [2020-09-21 11:09:27,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:27,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:27,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:27,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:27,566 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 4 states. [2020-09-21 11:09:27,984 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:28,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:28,640 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2020-09-21 11:09:28,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:28,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:09:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:28,643 INFO L225 Difference]: With dead ends: 182 [2020-09-21 11:09:28,643 INFO L226 Difference]: Without dead ends: 119 [2020-09-21 11:09:28,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-21 11:09:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-21 11:09:28,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 11:09:28,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-09-21 11:09:28,709 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 53 [2020-09-21 11:09:28,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:28,710 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-09-21 11:09:28,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:28,710 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-09-21 11:09:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:09:28,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:28,721 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 11:09:28,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:09:28,721 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:28,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:28,721 INFO L82 PathProgramCache]: Analyzing trace with hash 633168041, now seen corresponding path program 1 times [2020-09-21 11:09:28,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:28,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712389192] [2020-09-21 11:09:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,243 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:29,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:09:29,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:29,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:29,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:29,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:29,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:29,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:29,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,421 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:29,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:29,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:29,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:29,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:29,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:09:29,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:09:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:09:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:09:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,469 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 11:09:29,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712389192] [2020-09-21 11:09:29,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:29,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:29,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137613374] [2020-09-21 11:09:29,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:29,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:29,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:29,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:29,472 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-09-21 11:09:29,828 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:30,487 INFO L93 Difference]: Finished difference Result 191 states and 236 transitions. [2020-09-21 11:09:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:30,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:09:30,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:30,492 INFO L225 Difference]: With dead ends: 191 [2020-09-21 11:09:30,492 INFO L226 Difference]: Without dead ends: 119 [2020-09-21 11:09:30,493 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 11:09:30,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-21 11:09:30,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-21 11:09:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 11:09:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-09-21 11:09:30,521 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 57 [2020-09-21 11:09:30,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:30,522 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-09-21 11:09:30,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:30,522 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-09-21 11:09:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:09:30,523 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:30,523 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] [2020-09-21 11:09:30,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:09:30,524 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:30,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:30,524 INFO L82 PathProgramCache]: Analyzing trace with hash 119188522, now seen corresponding path program 1 times [2020-09-21 11:09:30,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:30,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85483621] [2020-09-21 11:09:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:09:31,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-09-21 11:09:31,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:09:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 11:09:31,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,401 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:31,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,465 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:09:31,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:31,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:31,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:31,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:31,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:31,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:31,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:31,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:09:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,538 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,538 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:09:31,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:09:31,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,544 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:31,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:31,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:31,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:31,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:09:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:31,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:09:31,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:31,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:09:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:31,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,588 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 11:09:31,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85483621] [2020-09-21 11:09:31,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:31,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:09:31,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894072797] [2020-09-21 11:09:31,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:09:31,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:31,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:09:31,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:09:31,591 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 8 states. [2020-09-21 11:09:32,006 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:33,376 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:33,780 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:34,066 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:34,515 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:34,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:34,842 INFO L93 Difference]: Finished difference Result 284 states and 375 transitions. [2020-09-21 11:09:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:09:34,843 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-21 11:09:34,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:34,847 INFO L225 Difference]: With dead ends: 284 [2020-09-21 11:09:34,847 INFO L226 Difference]: Without dead ends: 212 [2020-09-21 11:09:34,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 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 11:09:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-09-21 11:09:34,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 166. [2020-09-21 11:09:34,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-21 11:09:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 197 transitions. [2020-09-21 11:09:34,894 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 197 transitions. Word has length 65 [2020-09-21 11:09:34,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:34,895 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 197 transitions. [2020-09-21 11:09:34,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:09:34,895 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 197 transitions. [2020-09-21 11:09:34,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:09:34,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:34,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:09:34,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:09:34,897 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:34,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:34,898 INFO L82 PathProgramCache]: Analyzing trace with hash -44114032, now seen corresponding path program 1 times [2020-09-21 11:09:34,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:34,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811149703] [2020-09-21 11:09:34,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:09:35,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-21 11:09:35,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:09:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 11:09:35,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:35,527 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:35,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 11:09:35,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:35,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,646 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,646 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,646 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:35,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:09:35,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:35,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:35,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:35,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:35,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:35,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:35,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,661 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:35,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:35,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:35,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:35,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:09:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:35,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:09:35,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:09:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:35,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:35,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:09:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:35,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:35,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:09:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:35,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:09:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,761 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 11:09:35,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811149703] [2020-09-21 11:09:35,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:35,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:09:35,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893818844] [2020-09-21 11:09:35,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:09:35,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:35,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:09:35,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:09:35,767 INFO L87 Difference]: Start difference. First operand 166 states and 197 transitions. Second operand 6 states. [2020-09-21 11:09:36,122 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:36,692 INFO L93 Difference]: Finished difference Result 279 states and 345 transitions. [2020-09-21 11:09:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:09:36,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-09-21 11:09:36,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:36,696 INFO L225 Difference]: With dead ends: 279 [2020-09-21 11:09:36,696 INFO L226 Difference]: Without dead ends: 137 [2020-09-21 11:09:36,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:09:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-09-21 11:09:36,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2020-09-21 11:09:36,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-21 11:09:36,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 140 transitions. [2020-09-21 11:09:36,728 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 140 transitions. Word has length 69 [2020-09-21 11:09:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:36,729 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 140 transitions. [2020-09-21 11:09:36,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:09:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 140 transitions. [2020-09-21 11:09:36,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:09:36,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:36,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:09:36,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:09:36,730 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:36,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:36,731 INFO L82 PathProgramCache]: Analyzing trace with hash -760855184, now seen corresponding path program 1 times [2020-09-21 11:09:36,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:36,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747717788] [2020-09-21 11:09:36,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:09:36,801 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:09:36,801 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:09:36,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:09:36,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:09:36 BoogieIcfgContainer [2020-09-21 11:09:36,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:09:36,835 INFO L168 Benchmark]: Toolchain (without parser) took 14245.65 ms. Allocated memory was 138.4 MB in the beginning and 465.6 MB in the end (delta: 327.2 MB). Free memory was 100.5 MB in the beginning and 118.5 MB in the end (delta: -17.9 MB). Peak memory consumption was 309.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:36,836 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-09-21 11:09:36,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.93 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.1 MB in the beginning and 171.5 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:36,838 INFO L168 Benchmark]: Boogie Preprocessor took 106.60 ms. Allocated memory is still 201.9 MB. Free memory was 171.5 MB in the beginning and 167.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:36,839 INFO L168 Benchmark]: RCFGBuilder took 1274.88 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 167.4 MB in the beginning and 201.7 MB in the end (delta: -34.3 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:36,840 INFO L168 Benchmark]: TraceAbstraction took 12083.83 ms. Allocated memory was 232.8 MB in the beginning and 465.6 MB in the end (delta: 232.8 MB). Free memory was 201.7 MB in the beginning and 118.5 MB in the end (delta: 83.2 MB). Peak memory consumption was 316.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:36,844 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.93 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.1 MB in the beginning and 171.5 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.60 ms. Allocated memory is still 201.9 MB. Free memory was 171.5 MB in the beginning and 167.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1274.88 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 167.4 MB in the beginning and 201.7 MB in the end (delta: -34.3 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12083.83 ms. Allocated memory was 232.8 MB in the beginning and 465.6 MB in the end (delta: 232.8 MB). Free memory was 201.7 MB in the beginning and 118.5 MB in the end (delta: 83.2 MB). Peak memory consumption was 316.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L95] int pumpRunning = 0; [L96] int systemActive = 1; [L297] int cleanupTimeShifts = 4; [L562] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L760] int waterLevel = 1; [L761] int methaneLevelCritical = 0; [L370] int retValue_acc ; [L371] int tmp ; [L375] FCALL select_helpers() [L376] FCALL select_features() [L377] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L377] RET, EXPR valid_product() [L377] tmp = valid_product() [L379] COND TRUE \read(tmp) [L381] FCALL setup() [L382] CALL runTest() [L364] CALL test() [L233] int splverifierCounter ; [L234] int tmp ; [L235] int tmp___0 ; [L236] int tmp___1 ; [L237] int tmp___2 ; [L240] splverifierCounter = 0 [L242] COND TRUE 1 [L244] COND TRUE splverifierCounter < 4 [L250] tmp = __VERIFIER_nondet_int() [L252] COND TRUE \read(tmp) [L254] CALL waterRise() [L778] COND TRUE waterLevel < 2 [L779] waterLevel = waterLevel + 1 [L254] RET waterRise() [L260] tmp___0 = __VERIFIER_nondet_int() [L262] COND FALSE !(\read(tmp___0)) [L270] tmp___2 = __VERIFIER_nondet_int() [L272] COND TRUE \read(tmp___2) [L285] CALL timeShift() [L103] COND FALSE !(\read(pumpRunning)) [L110] COND TRUE \read(systemActive) [L112] CALL processEnvironment() [L132] int tmp ; [L135] COND FALSE !(\read(pumpRunning)) [L150] FCALL processEnvironment__wrappee__base() [L112] RET processEnvironment() [L118] CALL __utac_acc__Specification3_spec__1() [L841] int tmp ; [L842] int tmp___0 ; [L843] int tmp___1 ; [L847] CALL, EXPR isMethaneLevelCritical() [L799] int retValue_acc ; [L802] retValue_acc = methaneLevelCritical [L803] return (retValue_acc); [L847] RET, EXPR isMethaneLevelCritical() [L847] tmp = isMethaneLevelCritical() [L849] COND FALSE !(\read(tmp)) [L853] CALL, EXPR getWaterLevel() [L831] int retValue_acc ; [L834] retValue_acc = waterLevel [L835] return (retValue_acc); [L853] RET, EXPR getWaterLevel() [L853] tmp___0 = getWaterLevel() [L855] COND TRUE tmp___0 == 2 [L857] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L857] RET, EXPR isPumpRunning() [L857] tmp___1 = isPumpRunning() [L859] COND FALSE !(\read(tmp___1)) [L863] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 435 SDtfs, 567 SDslu, 196 SDs, 0 SdLazy, 970 SolverSat, 345 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred 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, 5 MinimizatonAttempts, 134 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 81318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...