/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:46:35,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:46:35,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:46:35,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:46:35,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:46:35,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:46:35,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:46:35,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:46:35,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:46:35,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:46:35,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:46:35,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:46:35,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:46:35,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:46:35,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:46:35,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:46:35,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:46:35,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:46:35,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:46:35,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:46:35,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:46:35,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:46:35,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:46:35,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:46:35,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:46:35,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:46:35,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:46:35,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:46:35,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:46:35,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:46:35,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:46:35,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:46:35,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:46:35,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:46:35,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:46:35,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:46:35,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:46:35,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:46:35,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:46:35,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:46:35,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:46:35,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:46:35,695 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:46:35,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:46:35,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:46:35,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:46:35,699 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:46:35,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:46:35,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:46:35,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:46:35,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:46:35,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:46:35,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:46:35,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:46:35,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:46:35,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:46:35,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:46:35,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:46:35,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:46:35,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:46:35,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:46:35,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:46:35,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:46:35,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:35,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:46:35,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:46:35,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:46:35,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:46:35,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:46:35,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:46:35,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:46:35,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 15:46:36,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:46:36,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:46:36,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:46:36,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:46:36,205 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:46:36,206 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-09-24 15:46:36,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80081e03e/b465ca1f0e3248e3805fb050ff7a1a3a/FLAGb1c5355ad [2020-09-24 15:46:36,899 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:46:36,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-09-24 15:46:36,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80081e03e/b465ca1f0e3248e3805fb050ff7a1a3a/FLAGb1c5355ad [2020-09-24 15:46:37,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80081e03e/b465ca1f0e3248e3805fb050ff7a1a3a [2020-09-24 15:46:37,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:46:37,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:46:37,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:37,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:46:37,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:46:37,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277364e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37, skipping insertion in model container [2020-09-24 15:46:37,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:46:37,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:46:37,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:37,643 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:46:37,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:37,872 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:46:37,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37 WrapperNode [2020-09-24 15:46:37,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:37,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:46:37,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:46:37,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:46:37,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (1/1) ... [2020-09-24 15:46:37,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:46:37,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:46:37,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:46:37,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:46:37,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:38,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:46:38,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:46:38,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:38,079 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:46:38,080 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:46:38,080 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:46:38,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:46:38,080 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:46:38,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:46:38,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:46:38,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:46:38,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:46:38,081 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:46:38,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:46:38,082 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:46:38,082 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:46:38,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:46:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:46:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:46:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:46:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 15:46:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:46:38,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 15:46:38,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:46:38,084 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:46:38,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:46:38,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:46:38,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:46:38,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:38,085 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:46:38,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:38,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:38,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:38,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:46:38,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:46:38,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:46:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:46:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:46:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:46:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:46:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:46:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:46:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:46:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:46:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:46:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:46:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:46:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:46:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:46:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:46:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:46:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:46:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:46:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:46:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:46:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:46:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:46:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:46:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:46:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:46:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:46:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:46:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:46:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 15:46:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:46:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 15:46:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:46:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:46:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:46:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:46:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:46:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:46:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:46:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:46:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:46:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:46:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:46:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:46:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:46:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:46:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:46:39,211 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:46:39,212 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:46:39,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:39 BoogieIcfgContainer [2020-09-24 15:46:39,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:46:39,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:46:39,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:46:39,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:46:39,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:46:37" (1/3) ... [2020-09-24 15:46:39,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a97469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:39, skipping insertion in model container [2020-09-24 15:46:39,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:37" (2/3) ... [2020-09-24 15:46:39,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a97469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:39, skipping insertion in model container [2020-09-24 15:46:39,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:39" (3/3) ... [2020-09-24 15:46:39,229 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-09-24 15:46:39,241 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:46:39,252 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:46:39,273 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:46:39,304 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:46:39,304 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:46:39,304 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:46:39,304 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:46:39,304 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:46:39,305 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:46:39,305 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:46:39,305 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:46:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-24 15:46:39,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:46:39,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:39,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:39,347 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:39,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:39,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1381778522, now seen corresponding path program 1 times [2020-09-24 15:46:39,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:39,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23738922] [2020-09-24 15:46:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:46:39,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:46:39,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:46:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:46:40,277 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:40,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,303 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:40,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:46:40,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:40,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:40,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:40,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:40,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:40,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:40,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:40,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:40,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:40,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:40,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:40,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:40,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:40,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:40,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:40,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:40,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:40,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:40,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:40,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23738922] [2020-09-24 15:46:40,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:40,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:46:40,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541324704] [2020-09-24 15:46:40,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:46:40,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:40,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:46:40,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:40,604 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-09-24 15:46:41,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:41,883 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2020-09-24 15:46:41,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:46:41,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:46:41,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:41,918 INFO L225 Difference]: With dead ends: 413 [2020-09-24 15:46:41,918 INFO L226 Difference]: Without dead ends: 263 [2020-09-24 15:46:41,925 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 [2020-09-24 15:46:41,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-24 15:46:42,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-09-24 15:46:42,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 15:46:42,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2020-09-24 15:46:42,076 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 153 [2020-09-24 15:46:42,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:42,077 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2020-09-24 15:46:42,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:46:42,077 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2020-09-24 15:46:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:46:42,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:42,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:42,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:46:42,084 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:42,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:42,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1416646641, now seen corresponding path program 1 times [2020-09-24 15:46:42,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:42,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025550905] [2020-09-24 15:46:42,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:46:42,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:46:42,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:46:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:42,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:42,517 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:42,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:42,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:42,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:42,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:42,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:42,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:46:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:42,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:46:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:42,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:46:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:42,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:42,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025550905] [2020-09-24 15:46:42,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:42,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:42,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924071321] [2020-09-24 15:46:42,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:42,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:42,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:42,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:42,712 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 4 states. [2020-09-24 15:46:43,412 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:44,189 INFO L93 Difference]: Finished difference Result 330 states and 370 transitions. [2020-09-24 15:46:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:44,190 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:46:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:44,194 INFO L225 Difference]: With dead ends: 330 [2020-09-24 15:46:44,195 INFO L226 Difference]: Without dead ends: 246 [2020-09-24 15:46:44,196 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 [2020-09-24 15:46:44,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-24 15:46:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-09-24 15:46:44,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-24 15:46:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-09-24 15:46:44,232 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 154 [2020-09-24 15:46:44,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:44,233 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-09-24 15:46:44,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:44,233 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-09-24 15:46:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 15:46:44,237 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:44,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:44,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:46:44,238 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:44,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:44,238 INFO L82 PathProgramCache]: Analyzing trace with hash 448801326, now seen corresponding path program 1 times [2020-09-24 15:46:44,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:44,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085976279] [2020-09-24 15:46:44,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:44,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 15:46:44,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:44,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:46:44,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 15:46:44,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,621 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:44,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:44,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:44,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:46:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:44,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:44,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:44,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:44,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:44,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:44,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:44,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:44,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:44,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:44,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:44,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 15:46:44,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:44,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:44,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:44,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 15:46:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:44,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:44,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:44,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085976279] [2020-09-24 15:46:44,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:44,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:44,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938282308] [2020-09-24 15:46:44,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:44,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:44,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:44,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:44,887 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 4 states. [2020-09-24 15:46:45,554 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:46,233 INFO L93 Difference]: Finished difference Result 350 states and 395 transitions. [2020-09-24 15:46:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:46,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 15:46:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:46,237 INFO L225 Difference]: With dead ends: 350 [2020-09-24 15:46:46,237 INFO L226 Difference]: Without dead ends: 246 [2020-09-24 15:46:46,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:46,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-24 15:46:46,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-09-24 15:46:46,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-24 15:46:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2020-09-24 15:46:46,274 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 163 [2020-09-24 15:46:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:46,275 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2020-09-24 15:46:46,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:46,275 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2020-09-24 15:46:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 15:46:46,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:46,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:46,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:46:46,279 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:46,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:46,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1282068038, now seen corresponding path program 1 times [2020-09-24 15:46:46,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:46,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987001929] [2020-09-24 15:46:46,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 15:46:46,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:46:46,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:46:46,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 15:46:46,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-24 15:46:46,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,743 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:46,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:46,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:46,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 15:46:46,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:46,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:46,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:46,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,843 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:46,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:46,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:46,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:46,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:46,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:46,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:46,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:46,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:46,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:46,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:46,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:46:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:46:46,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:46,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 15:46:46,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:46,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:46,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:46,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:46:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:46,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:46,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:46,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:46:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:46,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:46,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:46,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:46,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:46,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:46,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 15:46:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:46,932 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:46,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:46,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:46,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:46,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:46,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:46,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:46,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:46,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:46,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:46,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:46,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:47,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987001929] [2020-09-24 15:46:47,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:47,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:46:47,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678514708] [2020-09-24 15:46:47,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:46:47,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:47,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:46:47,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:46:47,013 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand 9 states. [2020-09-24 15:46:47,795 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:49,554 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:49,878 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:50,196 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:50,487 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:50,816 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:51,295 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:51,606 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:52,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:52,060 INFO L93 Difference]: Finished difference Result 495 states and 592 transitions. [2020-09-24 15:46:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:46:52,061 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-24 15:46:52,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:52,067 INFO L225 Difference]: With dead ends: 495 [2020-09-24 15:46:52,067 INFO L226 Difference]: Without dead ends: 391 [2020-09-24 15:46:52,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:46:52,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-09-24 15:46:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 313. [2020-09-24 15:46:52,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-09-24 15:46:52,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 345 transitions. [2020-09-24 15:46:52,123 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 345 transitions. Word has length 171 [2020-09-24 15:46:52,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:52,123 INFO L479 AbstractCegarLoop]: Abstraction has 313 states and 345 transitions. [2020-09-24 15:46:52,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:46:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 345 transitions. [2020-09-24 15:46:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 15:46:52,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:52,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:52,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:52,128 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:52,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:52,128 INFO L82 PathProgramCache]: Analyzing trace with hash -426197068, now seen corresponding path program 1 times [2020-09-24 15:46:52,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:52,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139837253] [2020-09-24 15:46:52,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:46:52,226 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:46:52,227 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:46:52,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:52,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:46:52 BoogieIcfgContainer [2020-09-24 15:46:52,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:46:52,264 INFO L168 Benchmark]: Toolchain (without parser) took 15083.48 ms. Allocated memory was 140.5 MB in the beginning and 476.6 MB in the end (delta: 336.1 MB). Free memory was 101.9 MB in the beginning and 148.6 MB in the end (delta: -46.7 MB). Peak memory consumption was 289.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:52,265 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:46:52,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.54 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 174.9 MB in the end (delta: -73.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:52,267 INFO L168 Benchmark]: Boogie Preprocessor took 111.09 ms. Allocated memory is still 204.5 MB. Free memory was 174.9 MB in the beginning and 170.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:52,268 INFO L168 Benchmark]: RCFGBuilder took 1233.98 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 170.5 MB in the beginning and 179.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:52,269 INFO L168 Benchmark]: TraceAbstraction took 13041.34 ms. Allocated memory was 235.9 MB in the beginning and 476.6 MB in the end (delta: 240.6 MB). Free memory was 179.8 MB in the beginning and 148.6 MB in the end (delta: 31.2 MB). Peak memory consumption was 271.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:52,273 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.54 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 174.9 MB in the end (delta: -73.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.09 ms. Allocated memory is still 204.5 MB. Free memory was 174.9 MB in the beginning and 170.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1233.98 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 170.5 MB in the beginning and 179.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13041.34 ms. Allocated memory was 235.9 MB in the beginning and 476.6 MB in the end (delta: 240.6 MB). Free memory was 179.8 MB in the beginning and 148.6 MB in the end (delta: 31.2 MB). Peak memory consumption was 271.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L173] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L243] CALL test() [L461] int splverifierCounter ; [L462] int tmp ; [L463] int tmp___0 ; [L464] int tmp___1 ; [L465] int tmp___2 ; [L468] splverifierCounter = 0 [L470] COND TRUE 1 [L472] COND TRUE splverifierCounter < 4 [L478] tmp = __VERIFIER_nondet_int() [L480] COND TRUE \read(tmp) [L482] CALL waterRise() [L64] COND TRUE waterLevel < 2 [L65] waterLevel = waterLevel + 1 [L482] RET waterRise() [L488] tmp___0 = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp___0)) [L498] tmp___2 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___2) [L513] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L312] int tmp ; [L315] COND FALSE !(\read(pumpRunning)) [L330] FCALL processEnvironment__wrappee__methaneQuery() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification3_spec__1() [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L433] CALL, EXPR isMethaneLevelCritical() [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L433] RET, EXPR isMethaneLevelCritical() [L433] tmp = isMethaneLevelCritical() [L435] COND FALSE !(\read(tmp)) [L439] CALL, EXPR getWaterLevel() [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L439] RET, EXPR getWaterLevel() [L439] tmp___0 = getWaterLevel() [L441] COND TRUE tmp___0 == 2 [L443] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L443] RET, EXPR isPumpRunning() [L443] tmp___1 = isPumpRunning() [L445] COND FALSE !(\read(tmp___1)) [L449] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 599 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 823 SDtfs, 823 SDslu, 720 SDs, 0 SdLazy, 1600 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 181 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 637 ConstructedInterpolants, 0 QuantifiedInterpolants, 252556 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...