/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:09:53,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:09:53,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:09:53,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:09:53,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:09:53,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:09:53,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:09:53,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:09:53,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:09:53,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:09:53,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:09:53,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:09:53,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:09:53,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:09:53,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:09:53,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:09:53,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:09:53,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:09:53,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:09:53,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:09:53,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:09:53,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:09:53,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:09:53,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:09:53,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:09:53,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:09:53,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:09:53,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:09:53,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:09:53,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:09:53,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:09:53,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:09:53,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:09:53,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:09:53,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:09:53,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:09:53,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:09:53,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:09:53,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:09:53,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:09:53,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:09:53,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:09:53,356 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:09:53,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:09:53,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:09:53,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:09:53,358 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:09:53,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:09:53,359 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:09:53,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:09:53,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:09:53,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:09:53,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:09:53,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:09:53,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:09:53,360 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:09:53,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:09:53,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:09:53,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:09:53,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:09:53,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:09:53,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:09:53,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:09:53,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:09:53,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:09:53,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:09:53,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:09:53,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:09:53,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:09:53,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:09:53,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:09:53,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:09:53,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:09:53,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:09:53,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:09:53,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:09:53,881 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:09:53,883 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2020-09-21 12:09:53,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177fcb9e2/a7bfe470680c44948327d04f233ff724/FLAG33a00a6fa [2020-09-21 12:09:54,623 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:09:54,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2020-09-21 12:09:54,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177fcb9e2/a7bfe470680c44948327d04f233ff724/FLAG33a00a6fa [2020-09-21 12:09:54,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177fcb9e2/a7bfe470680c44948327d04f233ff724 [2020-09-21 12:09:54,895 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:09:54,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:09:54,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:09:54,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:09:54,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:09:54,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54, skipping insertion in model container [2020-09-21 12:09:54,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:09:55,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:09:55,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:09:55,523 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:09:55,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:09:55,680 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:09:55,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55 WrapperNode [2020-09-21 12:09:55,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:09:55,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:09:55,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:09:55,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:09:55,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (1/1) ... [2020-09-21 12:09:55,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (1/1) ... [2020-09-21 12:09:55,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (1/1) ... [2020-09-21 12:09:55,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (1/1) ... [2020-09-21 12:09:55,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (1/1) ... [2020-09-21 12:09:55,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (1/1) ... [2020-09-21 12:09:55,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (1/1) ... [2020-09-21 12:09:55,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:09:55,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:09:55,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:09:55,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:09:55,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:09:55,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:09:55,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:09:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:09:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:09:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:09:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:09:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:09:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:09:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:09:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:09:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:09:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:09:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:09:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:09:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:09:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:09:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:09:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:09:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:09:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:09:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:09:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:09:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:09:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:09:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:09:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:09:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:09:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:09:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:09:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:09:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:09:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:09:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:09:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:09:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:09:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:09:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:09:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:09:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:09:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:09:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:09:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:09:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:09:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:09:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:09:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:09:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:09:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:09:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:09:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:09:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:09:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:09:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:09:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:09:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:09:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:09:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:09:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:09:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:09:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:09:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:09:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:09:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:09:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:09:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:09:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:09:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:09:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:09:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:09:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:09:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:09:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:09:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:09:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:09:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:09:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:09:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:09:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:09:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:09:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:09:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:09:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:09:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:09:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:09:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:09:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:09:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:09:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:09:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:09:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:09:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:09:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:09:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:09:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:09:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:09:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:09:57,020 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:09:57,021 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:09:57,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:09:57 BoogieIcfgContainer [2020-09-21 12:09:57,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:09:57,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:09:57,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:09:57,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:09:57,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:09:54" (1/3) ... [2020-09-21 12:09:57,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0361da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:09:57, skipping insertion in model container [2020-09-21 12:09:57,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:55" (2/3) ... [2020-09-21 12:09:57,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0361da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:09:57, skipping insertion in model container [2020-09-21 12:09:57,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:09:57" (3/3) ... [2020-09-21 12:09:57,038 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2020-09-21 12:09:57,050 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:09:57,061 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:09:57,084 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:09:57,113 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:09:57,113 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:09:57,113 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:09:57,113 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:09:57,113 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:09:57,114 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:09:57,114 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:09:57,114 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:09:57,139 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states. [2020-09-21 12:09:57,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:09:57,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:09:57,153 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] [2020-09-21 12:09:57,154 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:09:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:09:57,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1292486909, now seen corresponding path program 1 times [2020-09-21 12:09:57,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:09:57,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762116273] [2020-09-21 12:09:57,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:09:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:57,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:57,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 12:09:58,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:09:58,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-21 12:09:58,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:09:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:58,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:09:58,929 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:09:58,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:09:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:59,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 12:09:59,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:09:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:59,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:59,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:09:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:59,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:59,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:09:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:59,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:09:59,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:09:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:59,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:59,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:09:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:59,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:59,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 12:09:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:59,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:59,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:59,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:09:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:59,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:59,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:09:59,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762116273] [2020-09-21 12:09:59,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:09:59,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:09:59,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055119879] [2020-09-21 12:09:59,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:09:59,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:09:59,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:09:59,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:09:59,151 INFO L87 Difference]: Start difference. First operand 181 states. Second operand 4 states. [2020-09-21 12:10:00,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:00,309 INFO L93 Difference]: Finished difference Result 311 states and 408 transitions. [2020-09-21 12:10:00,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:10:00,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 12:10:00,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:00,331 INFO L225 Difference]: With dead ends: 311 [2020-09-21 12:10:00,331 INFO L226 Difference]: Without dead ends: 174 [2020-09-21 12:10:00,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:10:00,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-09-21 12:10:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 138. [2020-09-21 12:10:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-21 12:10:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 163 transitions. [2020-09-21 12:10:00,471 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 163 transitions. Word has length 51 [2020-09-21 12:10:00,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:00,472 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 163 transitions. [2020-09-21 12:10:00,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:10:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 163 transitions. [2020-09-21 12:10:00,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:10:00,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:00,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:00,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:10:00,478 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:00,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:00,478 INFO L82 PathProgramCache]: Analyzing trace with hash -11798802, now seen corresponding path program 1 times [2020-09-21 12:10:00,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:00,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683838859] [2020-09-21 12:10:00,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:00,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:00,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:10:01,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:01,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-09-21 12:10:01,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:10:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:01,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:02,072 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:02,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:02,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:02,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 12:10:02,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:02,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:02,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:02,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:02,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:02,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:02,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:02,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:02,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:02,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:02,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:02,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:02,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:02,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:02,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:02,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:02,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:02,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:02,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:02,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:02,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:02,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:02,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:02,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:02,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:02,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:02,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:10:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:02,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:02,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:02,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:02,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:10:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:02,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:02,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:02,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683838859] [2020-09-21 12:10:02,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:02,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:10:02,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966285052] [2020-09-21 12:10:02,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:10:02,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:02,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:10:02,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:10:02,278 INFO L87 Difference]: Start difference. First operand 138 states and 163 transitions. Second operand 5 states. [2020-09-21 12:10:02,852 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:03,857 INFO L93 Difference]: Finished difference Result 246 states and 307 transitions. [2020-09-21 12:10:03,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:10:03,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 12:10:03,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:03,862 INFO L225 Difference]: With dead ends: 246 [2020-09-21 12:10:03,863 INFO L226 Difference]: Without dead ends: 164 [2020-09-21 12:10:03,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:03,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-09-21 12:10:03,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 129. [2020-09-21 12:10:03,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-09-21 12:10:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2020-09-21 12:10:03,911 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 52 [2020-09-21 12:10:03,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:03,912 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2020-09-21 12:10:03,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:10:03,912 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2020-09-21 12:10:03,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:10:03,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:03,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:03,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:10:03,915 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:03,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:03,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1490469892, now seen corresponding path program 1 times [2020-09-21 12:10:03,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:03,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410012023] [2020-09-21 12:10:03,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:04,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:04,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:04,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:04,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:10:04,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:04,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-21 12:10:04,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:10:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 12:10:04,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:05,288 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:05,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:05,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:05,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:05,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-21 12:10:05,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:05,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:05,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:05,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:05,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:05,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:05,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:05,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:05,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:05,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:05,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:05,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:05,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:05,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:05,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:05,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:05,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:05,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:05,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:05,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:05,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:05,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:05,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:05,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:05,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:05,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:05,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:05,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:05,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:05,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:05,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:05,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:10:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:05,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:05,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:05,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:05,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:05,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:10:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:05,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:05,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:05,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:05,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410012023] [2020-09-21 12:10:05,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:05,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:10:05,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485095251] [2020-09-21 12:10:05,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:10:05,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:05,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:10:05,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:10:05,542 INFO L87 Difference]: Start difference. First operand 129 states and 151 transitions. Second operand 5 states. [2020-09-21 12:10:05,912 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:07,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:07,902 INFO L93 Difference]: Finished difference Result 377 states and 475 transitions. [2020-09-21 12:10:07,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:10:07,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-09-21 12:10:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:07,910 INFO L225 Difference]: With dead ends: 377 [2020-09-21 12:10:07,910 INFO L226 Difference]: Without dead ends: 276 [2020-09-21 12:10:07,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-21 12:10:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 220. [2020-09-21 12:10:07,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-21 12:10:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 265 transitions. [2020-09-21 12:10:07,985 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 265 transitions. Word has length 57 [2020-09-21 12:10:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:07,986 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 265 transitions. [2020-09-21 12:10:07,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:10:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 265 transitions. [2020-09-21 12:10:07,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-21 12:10:07,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:07,989 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] [2020-09-21 12:10:07,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:10:07,989 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:07,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:07,990 INFO L82 PathProgramCache]: Analyzing trace with hash -512554003, now seen corresponding path program 1 times [2020-09-21 12:10:07,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:07,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395623409] [2020-09-21 12:10:07,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:08,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:08,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-21 12:10:09,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:10:09,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1053 [2020-09-21 12:10:09,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-21 12:10:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:10:09,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:09,406 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:09,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:10:09,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:09,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:09,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:09,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:09,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:10:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:09,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:09,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:09,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:10:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:09,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:09,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:09,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:09,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:10:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:10:09,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:09,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:09,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395623409] [2020-09-21 12:10:09,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:09,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:10:09,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846366921] [2020-09-21 12:10:09,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:09,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:09,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:09,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:09,661 INFO L87 Difference]: Start difference. First operand 220 states and 265 transitions. Second operand 9 states. [2020-09-21 12:10:10,181 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:11,522 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-21 12:10:11,899 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:12,284 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:13,019 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:10:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:14,460 INFO L93 Difference]: Finished difference Result 620 states and 840 transitions. [2020-09-21 12:10:14,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 12:10:14,461 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-09-21 12:10:14,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:14,469 INFO L225 Difference]: With dead ends: 620 [2020-09-21 12:10:14,470 INFO L226 Difference]: Without dead ends: 428 [2020-09-21 12:10:14,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=150, Invalid=450, Unknown=0, NotChecked=0, Total=600 [2020-09-21 12:10:14,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-21 12:10:14,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 348. [2020-09-21 12:10:14,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-09-21 12:10:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 421 transitions. [2020-09-21 12:10:14,560 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 421 transitions. Word has length 62 [2020-09-21 12:10:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:14,561 INFO L479 AbstractCegarLoop]: Abstraction has 348 states and 421 transitions. [2020-09-21 12:10:14,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 421 transitions. [2020-09-21 12:10:14,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:10:14,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:14,565 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] [2020-09-21 12:10:14,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:10:14,565 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:14,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:14,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1737926205, now seen corresponding path program 1 times [2020-09-21 12:10:14,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:14,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821833517] [2020-09-21 12:10:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:15,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:10:15,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:10:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-21 12:10:15,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 12:10:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:15,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:15,911 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:15,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:15,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:15,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:15,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:15,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:10:15,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:15,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:15,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:15,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:15,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:15,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:15,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:15,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:15,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:15,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:15,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:10:16,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:16,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:16,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:16,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-21 12:10:16,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:16,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:10:16,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:16,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:16,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:16,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-21 12:10:16,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:10:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:16,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:10:16,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:16,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:10:16,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:16,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:16,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:10:16,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:10:16,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:16,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:16,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:10:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:10:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:16,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:16,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821833517] [2020-09-21 12:10:16,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:16,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:10:16,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846977274] [2020-09-21 12:10:16,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:10:16,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:16,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:10:16,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:10:16,573 INFO L87 Difference]: Start difference. First operand 348 states and 421 transitions. Second operand 8 states. [2020-09-21 12:10:17,788 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:18,136 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:18,464 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:19,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:19,295 INFO L93 Difference]: Finished difference Result 765 states and 1018 transitions. [2020-09-21 12:10:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:10:19,296 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-09-21 12:10:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:19,301 INFO L225 Difference]: With dead ends: 765 [2020-09-21 12:10:19,301 INFO L226 Difference]: Without dead ends: 445 [2020-09-21 12:10:19,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:10:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-21 12:10:19,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 359. [2020-09-21 12:10:19,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-21 12:10:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 433 transitions. [2020-09-21 12:10:19,385 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 433 transitions. Word has length 85 [2020-09-21 12:10:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:19,386 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 433 transitions. [2020-09-21 12:10:19,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:10:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 433 transitions. [2020-09-21 12:10:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:10:19,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:19,388 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] [2020-09-21 12:10:19,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:10:19,388 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:19,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:19,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1036326331, now seen corresponding path program 1 times [2020-09-21 12:10:19,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:19,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947722007] [2020-09-21 12:10:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:10:20,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:20,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-21 12:10:20,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:10:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 12:10:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,739 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-21 12:10:20,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:20,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:20,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:20,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:20,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:20,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:20,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:20,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:20,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:20,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:20,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:20,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:20,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:20,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:21,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:21,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:21,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 12:10:21,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:10:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:10:21,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:21,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:21,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:21,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:21,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 12:10:21,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:10:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:21,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:21,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:21,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:21,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:10:21,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:10:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:21,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:21,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:21,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:21,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:21,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:21,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:21,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:21,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:21,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:21,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:21,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:21,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:21,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:10:21,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:21,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:21,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:21,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:21,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:10:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:21,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:21,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:21,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:21,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:21,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:10:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:21,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:21,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:21,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:21,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:21,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:21,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:21,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:21,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947722007] [2020-09-21 12:10:21,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:21,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:10:21,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87955713] [2020-09-21 12:10:21,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:10:21,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:21,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:10:21,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:21,206 INFO L87 Difference]: Start difference. First operand 359 states and 433 transitions. Second operand 7 states. [2020-09-21 12:10:21,585 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:22,221 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:25,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:25,131 INFO L93 Difference]: Finished difference Result 1313 states and 1793 transitions. [2020-09-21 12:10:25,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:10:25,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-21 12:10:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:25,140 INFO L225 Difference]: With dead ends: 1313 [2020-09-21 12:10:25,140 INFO L226 Difference]: Without dead ends: 982 [2020-09-21 12:10:25,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:10:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-09-21 12:10:25,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 857. [2020-09-21 12:10:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2020-09-21 12:10:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1065 transitions. [2020-09-21 12:10:25,411 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1065 transitions. Word has length 85 [2020-09-21 12:10:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:25,412 INFO L479 AbstractCegarLoop]: Abstraction has 857 states and 1065 transitions. [2020-09-21 12:10:25,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:10:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1065 transitions. [2020-09-21 12:10:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:10:25,416 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:25,416 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] [2020-09-21 12:10:25,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:10:25,417 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:25,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:25,417 INFO L82 PathProgramCache]: Analyzing trace with hash 831560194, now seen corresponding path program 1 times [2020-09-21 12:10:25,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:25,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520493019] [2020-09-21 12:10:25,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:10:26,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1032 [2020-09-21 12:10:26,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-21 12:10:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:26,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:26,791 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:26,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:26,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:10:26,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:26,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:26,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:26,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:26,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:26,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:26,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:26,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:26,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:26,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:26,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:26,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:26,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:26,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:26,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:26,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:26,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:27,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 12:10:27,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:10:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:27,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:27,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 12:10:27,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:10:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:27,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:27,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 12:10:27,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:10:27,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:27,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:27,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:27,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:10:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:27,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:27,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:10:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:27,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:27,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520493019] [2020-09-21 12:10:27,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:27,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:10:27,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952608115] [2020-09-21 12:10:27,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:27,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:27,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:27,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:27,247 INFO L87 Difference]: Start difference. First operand 857 states and 1065 transitions. Second operand 9 states. [2020-09-21 12:10:28,486 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:28,859 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:10:29,221 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:29,540 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:30,503 INFO L93 Difference]: Finished difference Result 1809 states and 2353 transitions. [2020-09-21 12:10:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:10:30,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-09-21 12:10:30,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:30,520 INFO L225 Difference]: With dead ends: 1809 [2020-09-21 12:10:30,520 INFO L226 Difference]: Without dead ends: 980 [2020-09-21 12:10:30,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:10:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-09-21 12:10:30,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 877. [2020-09-21 12:10:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-09-21 12:10:30,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1085 transitions. [2020-09-21 12:10:30,765 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1085 transitions. Word has length 85 [2020-09-21 12:10:30,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:30,765 INFO L479 AbstractCegarLoop]: Abstraction has 877 states and 1085 transitions. [2020-09-21 12:10:30,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:30,766 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1085 transitions. [2020-09-21 12:10:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:10:30,770 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:30,771 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] [2020-09-21 12:10:30,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:10:30,771 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:30,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1533160068, now seen corresponding path program 1 times [2020-09-21 12:10:30,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:30,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324972452] [2020-09-21 12:10:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:30,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:30,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:10:31,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:31,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-21 12:10:31,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:31,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 12:10:31,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:31,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,093 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:32,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:10:32,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:32,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:32,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:32,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:32,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:32,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:32,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:32,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:32,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:32,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:10:32,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:32,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:10:32,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:32,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:32,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:10:32,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:32,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:10:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:32,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:10:32,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:10:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:32,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:32,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:10:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:32,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:32,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:10:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:32,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:10:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:32,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324972452] [2020-09-21 12:10:32,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:32,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:10:32,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086687058] [2020-09-21 12:10:32,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:10:32,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:32,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:10:32,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:10:32,449 INFO L87 Difference]: Start difference. First operand 877 states and 1085 transitions. Second operand 8 states. [2020-09-21 12:10:33,729 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:34,049 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:34,342 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:35,489 INFO L93 Difference]: Finished difference Result 1656 states and 2152 transitions. [2020-09-21 12:10:35,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:10:35,490 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-09-21 12:10:35,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:35,498 INFO L225 Difference]: With dead ends: 1656 [2020-09-21 12:10:35,499 INFO L226 Difference]: Without dead ends: 807 [2020-09-21 12:10:35,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:10:35,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2020-09-21 12:10:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 730. [2020-09-21 12:10:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-09-21 12:10:35,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 886 transitions. [2020-09-21 12:10:35,689 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 886 transitions. Word has length 85 [2020-09-21 12:10:35,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:35,689 INFO L479 AbstractCegarLoop]: Abstraction has 730 states and 886 transitions. [2020-09-21 12:10:35,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:10:35,689 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 886 transitions. [2020-09-21 12:10:35,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 12:10:35,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:35,692 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] [2020-09-21 12:10:35,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:10:35,693 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:35,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:35,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1385461547, now seen corresponding path program 1 times [2020-09-21 12:10:35,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:35,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490303226] [2020-09-21 12:10:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:35,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:36,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:36,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:36,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 12:10:36,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-21 12:10:36,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:10:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:10:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 12:10:36,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,031 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:37,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:37,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 12:10:37,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:37,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:37,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:37,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:37,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:37,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:37,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:37,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:37,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:37,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:37,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:37,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:37,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:10:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:37,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:37,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:10:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:37,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 12:10:37,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:37,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:10:37,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:37,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:37,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:10:37,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:37,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:10:37,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:37,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:37,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:37,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:37,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:37,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 12:10:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:37,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:37,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 12:10:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:37,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:37,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:37,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:37,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:37,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:37,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:37,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490303226] [2020-09-21 12:10:37,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:37,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:10:37,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236039954] [2020-09-21 12:10:37,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:10:37,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:37,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:10:37,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:37,330 INFO L87 Difference]: Start difference. First operand 730 states and 886 transitions. Second operand 7 states. [2020-09-21 12:10:37,696 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:40,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:40,434 INFO L93 Difference]: Finished difference Result 1466 states and 1993 transitions. [2020-09-21 12:10:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 12:10:40,435 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-09-21 12:10:40,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:40,450 INFO L225 Difference]: With dead ends: 1466 [2020-09-21 12:10:40,450 INFO L226 Difference]: Without dead ends: 1463 [2020-09-21 12:10:40,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-21 12:10:40,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2020-09-21 12:10:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1272. [2020-09-21 12:10:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1272 states. [2020-09-21 12:10:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1616 transitions. [2020-09-21 12:10:40,694 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1616 transitions. Word has length 89 [2020-09-21 12:10:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:40,697 INFO L479 AbstractCegarLoop]: Abstraction has 1272 states and 1616 transitions. [2020-09-21 12:10:40,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:10:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1616 transitions. [2020-09-21 12:10:40,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-21 12:10:40,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:40,703 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 12:10:40,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:10:40,703 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash 466519058, now seen corresponding path program 1 times [2020-09-21 12:10:40,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:40,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365033317] [2020-09-21 12:10:40,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:40,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:40,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:41,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:41,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-21 12:10:41,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:41,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-09-21 12:10:41,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-21 12:10:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:10:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:42,181 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:42,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 12:10:42,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:42,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:42,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:42,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:42,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:42,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:42,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:42,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:42,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:42,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:10:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:42,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:10:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:42,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:42,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:42,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 12:10:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-21 12:10:42,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:10:42,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:10:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 12:10:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:42,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 12:10:42,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:10:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:42,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:10:42,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:42,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:10:42,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:42,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 12:10:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:10:42,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:10:42,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:42,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:10:42,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:42,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:10:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:42,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:42,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 12:10:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:42,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:42,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-21 12:10:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:42,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 12:10:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:42,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:42,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:42,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:42,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:42,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:42,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:42,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 12:10:42,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365033317] [2020-09-21 12:10:42,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:42,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 12:10:42,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421168479] [2020-09-21 12:10:42,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:10:42,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:42,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:10:42,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:10:42,751 INFO L87 Difference]: Start difference. First operand 1272 states and 1616 transitions. Second operand 10 states. [2020-09-21 12:10:43,355 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 190