/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_spec4_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:14:47,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:14:47,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:14:47,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:14:47,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:14:47,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:14:47,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:14:47,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:14:47,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:14:47,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:14:47,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:14:47,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:14:47,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:14:47,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:14:47,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:14:47,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:14:47,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:14:47,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:14:47,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:14:47,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:14:47,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:14:47,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:14:47,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:14:47,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:14:47,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:14:47,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:14:47,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:14:47,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:14:47,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:14:47,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:14:47,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:14:47,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:14:47,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:14:47,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:14:47,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:14:47,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:14:47,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:14:47,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:14:47,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:14:47,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:14:47,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:14:47,365 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 [2020-09-25 13:14:47,407 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:14:47,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:14:47,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:14:47,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:14:47,410 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:14:47,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:14:47,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:14:47,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:14:47,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:14:47,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:14:47,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:14:47,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:14:47,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:14:47,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:14:47,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:14:47,414 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:14:47,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:14:47,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:14:47,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:14:47,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:14:47,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:14:47,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:14:47,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:14:47,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:14:47,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:14:47,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:14:47,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:14:47,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:14:47,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:14:47,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:14:47,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:14:47,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:14:47,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:14:47,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:14:47,954 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:14:47,955 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2020-09-25 13:14:48,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02d5f9df2/992bb6fc9b6e4942a73754d289f9f1cd/FLAG6b8fa58d6 [2020-09-25 13:14:48,639 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:14:48,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2020-09-25 13:14:48,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02d5f9df2/992bb6fc9b6e4942a73754d289f9f1cd/FLAG6b8fa58d6 [2020-09-25 13:14:48,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02d5f9df2/992bb6fc9b6e4942a73754d289f9f1cd [2020-09-25 13:14:48,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:14:48,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:14:48,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:14:48,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:14:48,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:14:48,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:14:48" (1/1) ... [2020-09-25 13:14:48,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762a87e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:48, skipping insertion in model container [2020-09-25 13:14:48,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:14:48" (1/1) ... [2020-09-25 13:14:48,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:14:49,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:14:49,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:14:49,549 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:14:49,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:14:49,724 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:14:49,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49 WrapperNode [2020-09-25 13:14:49,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:14:49,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:14:49,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:14:49,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:14:49,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (1/1) ... [2020-09-25 13:14:49,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (1/1) ... [2020-09-25 13:14:49,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (1/1) ... [2020-09-25 13:14:49,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (1/1) ... [2020-09-25 13:14:49,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (1/1) ... [2020-09-25 13:14:49,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (1/1) ... [2020-09-25 13:14:49,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (1/1) ... [2020-09-25 13:14:49,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:14:49,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:14:49,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:14:49,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:14:49,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:14:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:14:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:14:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:14:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:14:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:14:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:14:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:14:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:14:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:14:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:14:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:14:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:14:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:14:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:14:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:14:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:14:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:14:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:14:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:14:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:14:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:14:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:14:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:14:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:14:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:14:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:14:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:14:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:14:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:14:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:14:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:14:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:14:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:14:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:14:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:14:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:14:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:14:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:14:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:14:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:14:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:14:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:14:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:14:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:14:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:14:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:14:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:14:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:14:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:14:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:14:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:14:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:14:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:14:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:14:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:14:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:14:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:14:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:14:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:14:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:14:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:14:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:14:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:14:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:14:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:14:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:14:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:14:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:14:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:14:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:14:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:14:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:14:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:14:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:14:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:14:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:14:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:14:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:14:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:14:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:14:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:14:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:14:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:14:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:14:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:14:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:14:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:14:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:14:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:14:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:14:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:14:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:14:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:14:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:14:51,126 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:14:51,127 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:14:51,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:14:51 BoogieIcfgContainer [2020-09-25 13:14:51,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:14:51,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:14:51,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:14:51,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:14:51,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:14:48" (1/3) ... [2020-09-25 13:14:51,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab68757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:14:51, skipping insertion in model container [2020-09-25 13:14:51,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:49" (2/3) ... [2020-09-25 13:14:51,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab68757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:14:51, skipping insertion in model container [2020-09-25 13:14:51,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:14:51" (3/3) ... [2020-09-25 13:14:51,143 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product40.cil.c [2020-09-25 13:14:51,155 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:14:51,166 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:14:51,190 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:14:51,225 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:14:51,226 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:14:51,226 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:14:51,226 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:14:51,226 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:14:51,226 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:14:51,227 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:14:51,227 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:14:51,257 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 13:14:51,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:14:51,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:51,277 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] [2020-09-25 13:14:51,278 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:51,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:51,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1162021346, now seen corresponding path program 1 times [2020-09-25 13:14:51,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:51,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121646897] [2020-09-25 13:14:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:51,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:52,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:53,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:56,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:56,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:14:56,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-09-25 13:14:56,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:56,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:14:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:14:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:14:56,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:14:57,270 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:57,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:57,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:57,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:57,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:57,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 13:14:57,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:57,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:57,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:57,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:57,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:14:57,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:57,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:57,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:57,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:57,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:57,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:57,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:57,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:57,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:57,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:57,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:57,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:57,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:57,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:57,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:57,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:57,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:57,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:57,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:57,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:57,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:57,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:57,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:57,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:57,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:57,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:57,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:57,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:57,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:57,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:14:57,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:57,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:57,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:57,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:57,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:57,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:57,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:14:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:57,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:57,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:57,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:57,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:57,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:57,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:14:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:57,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:57,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:57,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:57,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:57,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:57,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:57,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:57,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121646897] [2020-09-25 13:14:57,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:57,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:14:57,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868433781] [2020-09-25 13:14:57,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:14:57,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:57,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:14:57,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:14:57,862 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 4 states. [2020-09-25 13:14:58,664 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:00,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:00,990 INFO L93 Difference]: Finished difference Result 687 states and 831 transitions. [2020-09-25 13:15:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:15:00,992 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:15:00,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:01,028 INFO L225 Difference]: With dead ends: 687 [2020-09-25 13:15:01,029 INFO L226 Difference]: Without dead ends: 482 [2020-09-25 13:15:01,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:15:01,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-25 13:15:01,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 410. [2020-09-25 13:15:01,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 13:15:01,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 457 transitions. [2020-09-25 13:15:01,221 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 457 transitions. Word has length 142 [2020-09-25 13:15:01,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:01,222 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 457 transitions. [2020-09-25 13:15:01,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:15:01,222 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 457 transitions. [2020-09-25 13:15:01,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:15:01,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:01,228 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] [2020-09-25 13:15:01,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:15:01,228 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:01,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:01,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1650463023, now seen corresponding path program 1 times [2020-09-25 13:15:01,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:01,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357442553] [2020-09-25 13:15:01,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:01,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:01,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:01,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:02,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:15:06,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:15:06,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 13:15:06,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:15:06,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:15:06,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:15:06,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,665 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:06,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 13:15:06,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:15:06,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:07,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:07,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:07,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:07,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:07,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:07,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:07,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:07,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:07,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:07,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:07,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:07,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:07,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:07,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:07,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:07,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:07,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:07,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:07,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:07,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:07,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:15:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:07,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:07,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:15:07,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:15:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:07,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:07,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:07,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:07,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:07,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:15:07,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:07,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:07,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:07,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:07,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:15:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:07,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:07,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:07,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:15:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:07,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:07,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:07,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:07,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:07,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:07,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:07,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:07,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:07,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357442553] [2020-09-25 13:15:07,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:07,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:15:07,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117945061] [2020-09-25 13:15:07,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:15:07,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:07,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:15:07,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:15:07,175 INFO L87 Difference]: Start difference. First operand 410 states and 457 transitions. Second operand 6 states. [2020-09-25 13:15:07,656 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:09,197 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:10,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:10,246 INFO L93 Difference]: Finished difference Result 1110 states and 1376 transitions. [2020-09-25 13:15:10,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:15:10,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 13:15:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:10,254 INFO L225 Difference]: With dead ends: 1110 [2020-09-25 13:15:10,255 INFO L226 Difference]: Without dead ends: 810 [2020-09-25 13:15:10,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:15:10,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-09-25 13:15:10,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 665. [2020-09-25 13:15:10,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-09-25 13:15:10,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 759 transitions. [2020-09-25 13:15:10,367 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 759 transitions. Word has length 156 [2020-09-25 13:15:10,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:10,368 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 759 transitions. [2020-09-25 13:15:10,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:15:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 759 transitions. [2020-09-25 13:15:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:15:10,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:10,371 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] [2020-09-25 13:15:10,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:15:10,372 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:10,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:10,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1964515528, now seen corresponding path program 1 times [2020-09-25 13:15:10,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:10,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492703682] [2020-09-25 13:15:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:10,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:11,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:14,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 13:15:15,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:15:15,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:15:15,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:15:15,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:15:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 13:15:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:15,881 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:15,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:16,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:16,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 13:15:16,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:16,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:15:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:16,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:16,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:16,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:16,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:16,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:16,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:16,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:16,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:16,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:16,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:16,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:16,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:16,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:16,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:16,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:16,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:16,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:16,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:16,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:16,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:16,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:16,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:16,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:16,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:16,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:16,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:16,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:16,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:16,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:16,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 13:15:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:16,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:16,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:16,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:16,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:16,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:16,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:15:16,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:15:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:16,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:16,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:16,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:16,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:16,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:16,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:16,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 13:15:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:16,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:16,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:16,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:16,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:16,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:16,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492703682] [2020-09-25 13:15:16,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:16,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:15:16,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308234977] [2020-09-25 13:15:16,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:15:16,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:16,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:15:16,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:15:16,463 INFO L87 Difference]: Start difference. First operand 665 states and 759 transitions. Second operand 10 states. [2020-09-25 13:15:16,951 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:18,268 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:15:18,845 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:15:19,188 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:19,494 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:15:19,787 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:20,763 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:21,091 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:15:21,571 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:23,006 INFO L93 Difference]: Finished difference Result 1694 states and 2141 transitions. [2020-09-25 13:15:23,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:15:23,007 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 13:15:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:23,025 INFO L225 Difference]: With dead ends: 1694 [2020-09-25 13:15:23,025 INFO L226 Difference]: Without dead ends: 1139 [2020-09-25 13:15:23,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:15:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2020-09-25 13:15:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1039. [2020-09-25 13:15:23,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-09-25 13:15:23,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1259 transitions. [2020-09-25 13:15:23,216 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1259 transitions. Word has length 161 [2020-09-25 13:15:23,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:23,217 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1259 transitions. [2020-09-25 13:15:23,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:15:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1259 transitions. [2020-09-25 13:15:23,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-09-25 13:15:23,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:23,226 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:23,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:15:23,227 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:23,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:23,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1795513697, now seen corresponding path program 1 times [2020-09-25 13:15:23,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:23,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440533485] [2020-09-25 13:15:23,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:23,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:23,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:23,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:23,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:26,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-09-25 13:15:28,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:15:28,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 13:15:28,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 13:15:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 13:15:28,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,609 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:28,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 13:15:28,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:28,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:28,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:28,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:28,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:28,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:28,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:28,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:28,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 13:15:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:28,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:28,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:15:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 13:15:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 13:15:28,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:15:28,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:15:28,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:28,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:15:28,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:28,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:28,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 13:15:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 13:15:29,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:29,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-25 13:15:29,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 13:15:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:29,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:15:29,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 13:15:29,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 13:15:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:29,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:15:29,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 13:15:29,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:29,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:15:29,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:29,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:15:29,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 13:15:29,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:15:29,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:15:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:15:29,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:29,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:29,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:15:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:15:29,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:29,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:15:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:29,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:15:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:29,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:15:29,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:29,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:15:29,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:29,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:29,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-25 13:15:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:29,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:29,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:15:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-09-25 13:15:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:29,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:29,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:29,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:29,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-25 13:15:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:29,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:29,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:29,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:29,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:29,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:29,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:29,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:29,676 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 13:15:29,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440533485] [2020-09-25 13:15:29,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:29,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 13:15:29,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449203390] [2020-09-25 13:15:29,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:15:29,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:29,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:15:29,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:15:29,680 INFO L87 Difference]: Start difference. First operand 1039 states and 1259 transitions. Second operand 13 states. [2020-09-25 13:15:30,613 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:31,655 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:32,010 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:32,302 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:15:32,633 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:32,915 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:15:33,156 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190