/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_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:06:43,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:06:43,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:06:43,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:06:43,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:06:43,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:06:43,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:06:43,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:06:43,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:06:43,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:06:43,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:06:43,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:06:43,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:06:43,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:06:43,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:06:43,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:06:43,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:06:43,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:06:43,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:06:43,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:06:43,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:06:43,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:06:43,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:06:43,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:06:43,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:06:43,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:06:43,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:06:43,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:06:43,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:06:43,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:06:43,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:06:43,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:06:43,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:06:43,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:06:43,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:06:43,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:06:43,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:06:43,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:06:43,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:06:43,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:06:43,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:06:43,449 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 12:06:43,477 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:06:43,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:06:43,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:06:43,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:06:43,479 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:06:43,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:06:43,479 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:06:43,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:06:43,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:06:43,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:06:43,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:06:43,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:06:43,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:06:43,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:06:43,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:06:43,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:06:43,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:06:43,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:06:43,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:06:43,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:06:43,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:06:43,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:06:43,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:06:43,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:06:43,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:06:43,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:06:43,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:06:43,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:06:43,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:06:43,484 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 12:06:43,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:06:43,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:06:43,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:06:43,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:06:43,974 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:06:43,976 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-21 12:06:44,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c2035fda/f52e0fd5160c41cd939cebe2573bac6f/FLAG8ba7e10d9 [2020-09-21 12:06:44,645 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:06:44,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-21 12:06:44,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c2035fda/f52e0fd5160c41cd939cebe2573bac6f/FLAG8ba7e10d9 [2020-09-21 12:06:44,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c2035fda/f52e0fd5160c41cd939cebe2573bac6f [2020-09-21 12:06:44,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:06:44,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:06:44,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:06:44,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:06:44,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:06:44,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:06:44" (1/1) ... [2020-09-21 12:06:44,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4207e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:44, skipping insertion in model container [2020-09-21 12:06:44,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:06:44" (1/1) ... [2020-09-21 12:06:44,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:06:45,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:06:45,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:06:45,639 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:06:45,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:06:45,832 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:06:45,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45 WrapperNode [2020-09-21 12:06:45,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:06:45,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:06:45,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:06:45,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:06:45,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (1/1) ... [2020-09-21 12:06:45,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (1/1) ... [2020-09-21 12:06:45,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (1/1) ... [2020-09-21 12:06:45,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (1/1) ... [2020-09-21 12:06:45,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (1/1) ... [2020-09-21 12:06:45,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (1/1) ... [2020-09-21 12:06:45,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (1/1) ... [2020-09-21 12:06:45,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:06:45,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:06:45,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:06:45,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:06:45,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (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 12:06:46,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:06:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:06:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:06:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:06:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:06:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:06:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:06:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:06:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:06:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-21 12:06:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:06:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:06:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:06:46,090 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:06:46,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:06:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:06:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:06:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:06:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:06:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:06:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:06:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:06:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:06:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:06:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:06:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:06:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:06:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:06:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:06:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:06:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:06:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:06:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:06:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:06:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:06:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:06:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:06:46,097 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:06:46,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:06:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:06:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:06:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:06:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:06:46,098 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:06:46,098 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:06:46,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:06:46,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:06:46,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:06:46,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:06:46,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:06:46,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:06:46,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:06:46,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:06:46,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:06:46,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:06:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:06:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:06:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:06:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:06:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:06:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:06:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:06:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-21 12:06:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:06:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:06:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:06:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:06:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:06:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:06:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:06:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:06:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:06:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:06:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:06:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:06:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:06:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:06:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:06:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:06:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:06:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:06:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:06:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:06:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:06:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:06:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:06:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:06:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:06:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:06:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:06:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:06:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:06:47,351 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:06:47,352 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:06:47,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:06:47 BoogieIcfgContainer [2020-09-21 12:06:47,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:06:47,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:06:47,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:06:47,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:06:47,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:06:44" (1/3) ... [2020-09-21 12:06:47,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a35984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:06:47, skipping insertion in model container [2020-09-21 12:06:47,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:45" (2/3) ... [2020-09-21 12:06:47,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a35984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:06:47, skipping insertion in model container [2020-09-21 12:06:47,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:06:47" (3/3) ... [2020-09-21 12:06:47,368 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-09-21 12:06:47,380 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:06:47,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:06:47,414 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:06:47,442 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:06:47,442 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:06:47,442 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:06:47,442 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:06:47,442 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:06:47,442 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:06:47,443 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:06:47,443 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:06:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-09-21 12:06:47,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 12:06:47,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:06:47,485 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] [2020-09-21 12:06:47,486 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:06:47,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:06:47,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1081228888, now seen corresponding path program 1 times [2020-09-21 12:06:47,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:06:47,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316449937] [2020-09-21 12:06:47,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:06:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:47,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:48,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:48,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:48,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 12:06:48,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:06:48,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-21 12:06:48,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:06:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:48,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:06:49,463 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:06:49,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:06:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:49,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:49,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:49,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:49,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 12:06:49,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:49,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:49,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:49,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:06:49,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:06:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:49,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:49,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:49,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:49,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:49,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:06:49,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:49,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:49,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:06:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:49,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:49,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:49,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:49,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:06:49,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:49,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:49,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:06:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:49,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:49,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:49,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:49,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:49,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:06:49,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:49,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:49,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:06:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:49,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:49,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:49,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:49,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:49,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:06:49,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:49,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:49,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:49,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:06:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:49,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:49,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:49,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:49,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:49,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:06:49,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:06:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:49,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:06:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:49,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:49,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:49,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:49,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:49,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:06:49,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:49,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:49,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:06:49,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:49,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:49,768 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 12:06:49,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316449937] [2020-09-21 12:06:49,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:06:49,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:06:49,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054901263] [2020-09-21 12:06:49,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:06:49,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:06:49,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:06:49,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:06:49,805 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 3 states. [2020-09-21 12:06:51,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:06:51,145 INFO L93 Difference]: Finished difference Result 301 states and 397 transitions. [2020-09-21 12:06:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:06:51,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 12:06:51,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:06:51,166 INFO L225 Difference]: With dead ends: 301 [2020-09-21 12:06:51,167 INFO L226 Difference]: Without dead ends: 163 [2020-09-21 12:06:51,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:06:51,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-09-21 12:06:51,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 129. [2020-09-21 12:06:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-09-21 12:06:51,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 153 transitions. [2020-09-21 12:06:51,280 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 153 transitions. Word has length 46 [2020-09-21 12:06:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:06:51,280 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 153 transitions. [2020-09-21 12:06:51,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:06:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 153 transitions. [2020-09-21 12:06:51,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 12:06:51,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:06:51,285 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] [2020-09-21 12:06:51,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:06:51,286 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:06:51,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:06:51,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1618039840, now seen corresponding path program 1 times [2020-09-21 12:06:51,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:06:51,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657222410] [2020-09-21 12:06:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:06:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:51,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:51,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:52,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:52,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:52,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 12:06:52,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:06:52,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-09-21 12:06:52,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:06:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:06:52,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:06:52,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:52,826 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:06:52,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:06:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:52,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:52,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:52,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:52,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:52,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 12:06:52,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:52,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:52,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:52,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:06:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:52,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:52,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:52,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:52,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:06:52,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:52,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:06:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:52,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:52,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:52,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:52,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:06:52,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:52,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:52,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:06:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:52,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:52,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:52,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:52,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:52,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:06:52,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:52,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:52,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:06:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:52,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:52,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:52,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:52,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:52,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:06:52,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:52,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:52,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:06:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:52,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:52,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:52,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:52,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:52,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:06:52,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:06:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:52,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:06:53,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:06:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:53,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:53,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:53,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:53,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:53,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:06:53,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:53,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:06:53,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:53,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:53,026 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 12:06:53,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657222410] [2020-09-21 12:06:53,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:06:53,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:06:53,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877600824] [2020-09-21 12:06:53,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:06:53,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:06:53,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:06:53,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:06:53,036 INFO L87 Difference]: Start difference. First operand 129 states and 153 transitions. Second operand 4 states. [2020-09-21 12:06:53,735 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:06:54,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:06:54,611 INFO L93 Difference]: Finished difference Result 228 states and 280 transitions. [2020-09-21 12:06:54,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:06:54,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 12:06:54,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:06:54,615 INFO L225 Difference]: With dead ends: 228 [2020-09-21 12:06:54,615 INFO L226 Difference]: Without dead ends: 147 [2020-09-21 12:06:54,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:06:54,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-09-21 12:06:54,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 120. [2020-09-21 12:06:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-21 12:06:54,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2020-09-21 12:06:54,660 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 47 [2020-09-21 12:06:54,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:06:54,661 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2020-09-21 12:06:54,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:06:54,661 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2020-09-21 12:06:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:06:54,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:06:54,663 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 12:06:54,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:06:54,664 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:06:54,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:06:54,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1339561462, now seen corresponding path program 1 times [2020-09-21 12:06:54,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:06:54,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922600803] [2020-09-21 12:06:54,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:06:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:54,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:55,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:55,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:55,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 12:06:55,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:06:55,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-21 12:06:55,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:06:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:06:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 12:06:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:56,130 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:06:56,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:06:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:56,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:56,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:56,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:56,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:56,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-21 12:06:56,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:06:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:06:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:56,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:06:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:56,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:56,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:56,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:56,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:06:56,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:06:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:06:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:56,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:06:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:56,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:56,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:56,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:56,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:56,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:06:56,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:56,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:06:56,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:56,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:06:56,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:56,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:06:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:56,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:56,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:56,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:56,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:56,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:06:56,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:06:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:06:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:56,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:06:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:56,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:56,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:56,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:06:56,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:56,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:06:56,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:56,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:06:56,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:56,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:06:56,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:56,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:06:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:56,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:56,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:56,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:56,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:56,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:06:56,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:06:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:56,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:56,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:06:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:56,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:56,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:56,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:56,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:56,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:06:56,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:56,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:06:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:56,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:56,374 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 12:06:56,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922600803] [2020-09-21 12:06:56,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:06:56,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:06:56,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433276766] [2020-09-21 12:06:56,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:06:56,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:06:56,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:06:56,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:06:56,377 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand 4 states. [2020-09-21 12:06:56,766 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:06:58,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:06:58,491 INFO L93 Difference]: Finished difference Result 351 states and 437 transitions. [2020-09-21 12:06:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:06:58,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 12:06:58,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:06:58,497 INFO L225 Difference]: With dead ends: 351 [2020-09-21 12:06:58,497 INFO L226 Difference]: Without dead ends: 255 [2020-09-21 12:06:58,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:06:58,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-21 12:06:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 210. [2020-09-21 12:06:58,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-21 12:06:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 253 transitions. [2020-09-21 12:06:58,573 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 253 transitions. Word has length 51 [2020-09-21 12:06:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:06:58,574 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 253 transitions. [2020-09-21 12:06:58,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:06:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 253 transitions. [2020-09-21 12:06:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:06:58,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:06:58,577 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 12:06:58,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:06:58,577 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:06:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:06:58,578 INFO L82 PathProgramCache]: Analyzing trace with hash 857479477, now seen corresponding path program 1 times [2020-09-21 12:06:58,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:06:58,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548292013] [2020-09-21 12:06:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:06:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:58,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:59,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:59,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:59,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:59,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:06:59,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:06:59,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:06:59,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:06:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-21 12:06:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:06:59,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:06:59,927 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:06:59,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:06:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:06:59,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:06:59,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:06:59,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:06:59,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:06:59,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:06:59,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:06:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:06:59,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:06:59,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:06:59,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:00,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:07:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:00,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:00,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:00,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:00,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:00,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:00,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:00,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:00,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:00,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:00,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:00,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:07:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:00,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:00,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:00,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:00,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:00,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:07:00,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:00,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:00,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:00,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:00,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:00,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:07:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:00,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:00,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:00,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:00,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:00,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:00,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:00,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:00,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:00,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:07:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:00,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:00,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:00,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:00,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:00,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:07:00,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:00,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:00,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:00,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:07:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:00,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:00,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:00,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:07:00,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:00,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:00,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:00,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:00,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:07:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:00,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:00,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:00,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:00,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:00,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:07:00,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:00,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:00,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:07:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:00,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:00,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:00,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:07:00,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:00,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:00,105 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 12:07:00,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548292013] [2020-09-21 12:07:00,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:07:00,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:07:00,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297256338] [2020-09-21 12:07:00,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:07:00,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:07:00,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:07:00,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:07:00,108 INFO L87 Difference]: Start difference. First operand 210 states and 253 transitions. Second operand 8 states. [2020-09-21 12:07:00,640 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:07:01,738 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:07:02,099 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:07:02,419 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:07:03,082 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:03,470 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:07:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:07:04,390 INFO L93 Difference]: Finished difference Result 585 states and 769 transitions. [2020-09-21 12:07:04,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:07:04,391 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-21 12:07:04,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:07:04,396 INFO L225 Difference]: With dead ends: 585 [2020-09-21 12:07:04,396 INFO L226 Difference]: Without dead ends: 399 [2020-09-21 12:07:04,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:07:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-09-21 12:07:04,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 342. [2020-09-21 12:07:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-09-21 12:07:04,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 422 transitions. [2020-09-21 12:07:04,481 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 422 transitions. Word has length 57 [2020-09-21 12:07:04,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:07:04,481 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 422 transitions. [2020-09-21 12:07:04,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:07:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 422 transitions. [2020-09-21 12:07:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 12:07:04,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:07:04,485 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] [2020-09-21 12:07:04,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:07:04,485 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:07:04,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:07:04,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2089178819, now seen corresponding path program 1 times [2020-09-21 12:07:04,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:07:04,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961503845] [2020-09-21 12:07:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:07:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:04,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:04,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:05,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:05,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 12:07:05,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:07:05,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1069 [2020-09-21 12:07:05,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 12:07:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:05,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:05,878 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:07:05,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:07:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:05,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:05,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:05,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:05,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:07:05,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:05,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:07:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:05,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:05,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:05,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:05,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:05,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:07:05,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:05,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:05,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:07:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:05,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:05,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:05,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:05,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:05,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:05,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:05,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:05,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:05,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:05,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:05,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:07:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:05,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:05,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:05,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:05,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:05,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:05,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:07:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:05,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:05,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:05,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:05,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:05,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:07:05,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:05,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:05,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:05,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:05,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:05,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 12:07:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:06,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:06,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:07:06,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:07:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-21 12:07:06,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:07:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:06,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:06,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:06,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:07:06,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:07:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-21 12:07:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:07:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:06,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:06,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:06,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:07:06,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:06,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:07:06,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:06,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:06,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:07:06,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:06,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:06,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:07:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:06,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:06,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:07:06,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:06,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:07:06,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:07:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:06,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:06,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:07:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:06,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:06,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:06,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:06,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:07:06,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:06,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 12:07:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:06,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:06,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:06,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:06,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:07:06,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:06,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:06,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 12:07:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:06,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:06,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:06,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:06,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:06,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:06,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:06,495 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 12:07:06,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961503845] [2020-09-21 12:07:06,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:07:06,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:07:06,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070088500] [2020-09-21 12:07:06,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:07:06,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:07:06,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:07:06,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:07:06,499 INFO L87 Difference]: Start difference. First operand 342 states and 422 transitions. Second operand 7 states. [2020-09-21 12:07:07,465 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:07,778 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:08,130 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:07:08,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:07:08,974 INFO L93 Difference]: Finished difference Result 735 states and 969 transitions. [2020-09-21 12:07:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:07:08,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-09-21 12:07:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:07:08,981 INFO L225 Difference]: With dead ends: 735 [2020-09-21 12:07:08,981 INFO L226 Difference]: Without dead ends: 417 [2020-09-21 12:07:08,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:07:08,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-21 12:07:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 353. [2020-09-21 12:07:09,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-21 12:07:09,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 434 transitions. [2020-09-21 12:07:09,076 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 434 transitions. Word has length 79 [2020-09-21 12:07:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:07:09,076 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 434 transitions. [2020-09-21 12:07:09,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:07:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 434 transitions. [2020-09-21 12:07:09,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 12:07:09,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:07:09,079 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] [2020-09-21 12:07:09,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:07:09,079 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:07:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:07:09,080 INFO L82 PathProgramCache]: Analyzing trace with hash -2066546565, now seen corresponding path program 1 times [2020-09-21 12:07:09,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:07:09,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905746710] [2020-09-21 12:07:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:07:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:09,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:09,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 12:07:10,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:07:10,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:07:10,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:07:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 12:07:10,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:10,447 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:07:10,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:07:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:10,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-21 12:07:10,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:07:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:10,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:07:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:10,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:07:10,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:07:10,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:10,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:07:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:10,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:07:10,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:07:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:10,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:07:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:10,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:07:10,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:10,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:10,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:07:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:10,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:07:10,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:07:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:10,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 12:07:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:07:10,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 12:07:10,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:07:10,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:07:10,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:10,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:07:10,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:07:10,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:07:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:10,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:07:10,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:07:10,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:07:10,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:10,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:07:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:07:10,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:07:10,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:07:10,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:10,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:07:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:10,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:07:10,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:10,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:10,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:10,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 12:07:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:10,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:10,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:10,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:10,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:10,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:10,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 12:07:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:10,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:10,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:10,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:10,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:10,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:10,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:10,861 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 12:07:10,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905746710] [2020-09-21 12:07:10,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:07:10,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:07:10,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462288563] [2020-09-21 12:07:10,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:07:10,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:07:10,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:07:10,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:07:10,864 INFO L87 Difference]: Start difference. First operand 353 states and 434 transitions. Second operand 6 states. [2020-09-21 12:07:11,273 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:07:11,827 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:07:14,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:07:14,314 INFO L93 Difference]: Finished difference Result 1249 states and 1693 transitions. [2020-09-21 12:07:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:07:14,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-09-21 12:07:14,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:07:14,322 INFO L225 Difference]: With dead ends: 1249 [2020-09-21 12:07:14,322 INFO L226 Difference]: Without dead ends: 920 [2020-09-21 12:07:14,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:07:14,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2020-09-21 12:07:14,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 829. [2020-09-21 12:07:14,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-09-21 12:07:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1046 transitions. [2020-09-21 12:07:14,478 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1046 transitions. Word has length 79 [2020-09-21 12:07:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:07:14,479 INFO L479 AbstractCegarLoop]: Abstraction has 829 states and 1046 transitions. [2020-09-21 12:07:14,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:07:14,479 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1046 transitions. [2020-09-21 12:07:14,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 12:07:14,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:07:14,482 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] [2020-09-21 12:07:14,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:07:14,482 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:07:14,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:07:14,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1180296478, now seen corresponding path program 1 times [2020-09-21 12:07:14,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:07:14,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046820213] [2020-09-21 12:07:14,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:07:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:14,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:14,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:15,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:15,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 12:07:15,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:07:15,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:07:15,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:15,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:07:15,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-21 12:07:15,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:07:15,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:15,775 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:07:15,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:07:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:15,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:15,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:15,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:15,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:15,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:07:15,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:15,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:15,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:07:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:15,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:15,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:15,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:15,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:15,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:15,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:07:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:15,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:15,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:15,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:15,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:15,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:07:15,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:15,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:07:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:15,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:15,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:15,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:15,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:15,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:15,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:07:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:15,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:15,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:15,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 12:07:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:15,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:07:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 12:07:15,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:07:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:07:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:07:16,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 35 [2020-09-21 12:07:16,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:16,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:16,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:16,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:07:16,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 12:07:16,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:07:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:07:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:07:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:16,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:16,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:16,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:16,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:07:16,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 12:07:16,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:07:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:16,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:07:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:16,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:16,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:16,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:07:16,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:16,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:07:16,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:16,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:16,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:16,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:07:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:16,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:16,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:16,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:16,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:16,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:07:16,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:16,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:16,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 12:07:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:16,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:16,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:16,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:16,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:16,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:16,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:16,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:16,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 12:07:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:16,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:16,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:16,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:16,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:16,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:07:16,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:16,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:16,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:16,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:16,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:16,194 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 12:07:16,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046820213] [2020-09-21 12:07:16,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:07:16,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:07:16,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48107102] [2020-09-21 12:07:16,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:07:16,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:07:16,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:07:16,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:07:16,199 INFO L87 Difference]: Start difference. First operand 829 states and 1046 transitions. Second operand 8 states. [2020-09-21 12:07:17,297 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:17,547 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:07:17,904 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:18,252 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:19,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:07:19,212 INFO L93 Difference]: Finished difference Result 1723 states and 2239 transitions. [2020-09-21 12:07:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:07:19,212 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-21 12:07:19,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:07:19,219 INFO L225 Difference]: With dead ends: 1723 [2020-09-21 12:07:19,219 INFO L226 Difference]: Without dead ends: 918 [2020-09-21 12:07:19,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:07:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2020-09-21 12:07:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 849. [2020-09-21 12:07:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-09-21 12:07:19,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1066 transitions. [2020-09-21 12:07:19,376 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1066 transitions. Word has length 79 [2020-09-21 12:07:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:07:19,377 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 1066 transitions. [2020-09-21 12:07:19,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:07:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1066 transitions. [2020-09-21 12:07:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 12:07:19,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:07:19,380 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] [2020-09-21 12:07:19,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:07:19,380 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:07:19,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:07:19,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1202928732, now seen corresponding path program 1 times [2020-09-21 12:07:19,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:07:19,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395266277] [2020-09-21 12:07:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:07:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:19,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:19,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:20,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:20,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 12:07:20,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:07:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-09-21 12:07:20,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 12:07:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:20,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:07:20,815 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:07:20,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:07:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:20,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:20,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:20,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:20,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:07:20,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:20,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:20,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:07:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:20,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:20,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:20,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:20,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:07:20,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:20,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:20,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:07:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:20,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:20,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:20,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:20,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:20,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:20,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:20,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:20,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:20,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:20,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:20,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:07:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:20,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:20,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:20,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:20,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:20,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:20,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:20,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:20,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:20,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:07:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:20,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:20,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:20,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:20,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:20,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:20,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:20,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 12:07:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:20,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:20,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:20,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:07:20,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:20,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:07:20,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:20,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:07:20,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:20,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:20,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:20,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:21,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:21,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:07:21,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:21,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:07:21,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:07:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:21,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:21,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:21,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:21,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:07:21,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:21,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:07:21,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:21,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:21,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:07:21,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:21,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:21,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:07:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:21,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:21,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:21,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:07:21,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:21,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:07:21,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:07:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:21,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:21,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:07:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:21,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:21,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:21,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:21,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:07:21,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:21,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 12:07:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:21,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:21,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:21,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:21,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:21,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:21,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:21,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:21,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 12:07:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:21,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:21,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:21,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:07:21,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:21,138 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 12:07:21,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395266277] [2020-09-21 12:07:21,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:07:21,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:07:21,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291796465] [2020-09-21 12:07:21,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:07:21,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:07:21,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:07:21,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:07:21,144 INFO L87 Difference]: Start difference. First operand 849 states and 1066 transitions. Second operand 7 states. [2020-09-21 12:07:22,216 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:22,547 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:22,843 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:23,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:07:23,818 INFO L93 Difference]: Finished difference Result 1577 states and 2044 transitions. [2020-09-21 12:07:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:07:23,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-09-21 12:07:23,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:07:23,824 INFO L225 Difference]: With dead ends: 1577 [2020-09-21 12:07:23,825 INFO L226 Difference]: Without dead ends: 752 [2020-09-21 12:07:23,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:07:23,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-09-21 12:07:23,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 708. [2020-09-21 12:07:23,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2020-09-21 12:07:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 873 transitions. [2020-09-21 12:07:23,965 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 873 transitions. Word has length 79 [2020-09-21 12:07:23,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:07:23,967 INFO L479 AbstractCegarLoop]: Abstraction has 708 states and 873 transitions. [2020-09-21 12:07:23,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:07:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 873 transitions. [2020-09-21 12:07:23,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 12:07:23,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:07:23,971 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] [2020-09-21 12:07:23,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:07:23,971 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:07:23,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:07:23,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1381014239, now seen corresponding path program 1 times [2020-09-21 12:07:23,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:07:23,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086862398] [2020-09-21 12:07:23,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:07:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:24,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 12:07:25,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-21 12:07:25,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 12:07:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 12:07:25,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,348 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:07:25,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:07:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:25,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-21 12:07:25,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:25,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:07:25,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:07:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:25,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:25,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:07:25,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:07:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:25,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:07:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:07:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:25,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:07:25,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:25,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:07:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:07:25,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:25,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:07:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 12:07:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:25,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:07:25,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:07:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:07:25,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 12:07:25,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:07:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:07:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:07:25,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:07:25,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:25,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:07:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:07:25,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:07:25,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:25,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:25,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:07:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:07:25,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:07:25,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:07:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:25,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:07:25,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:25,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:25,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 12:07:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:25,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:07:25,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:07:25,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:07:25,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:07:25,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 12:07:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:07:25,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:07:25,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:07:25,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:07:25,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:07:25,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:07:25,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:07:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:07:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:07:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:07:25,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:07:25,694 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 12:07:25,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086862398] [2020-09-21 12:07:25,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:07:25,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:07:25,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831255156] [2020-09-21 12:07:25,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:07:25,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:07:25,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:07:25,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:07:25,697 INFO L87 Difference]: Start difference. First operand 708 states and 873 transitions. Second operand 9 states. [2020-09-21 12:07:26,352 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:07:27,334 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:07:27,669 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:07:27,996 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:07:28,231 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:07:28,689 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:07:30,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:07:30,475 INFO L93 Difference]: Finished difference Result 2132 states and 2786 transitions. [2020-09-21 12:07:30,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:07:30,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 12:07:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:07:30,487 INFO L225 Difference]: With dead ends: 2132 [2020-09-21 12:07:30,487 INFO L226 Difference]: Without dead ends: 1448 [2020-09-21 12:07:30,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-09-21 12:07:30,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2020-09-21 12:07:30,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1353. [2020-09-21 12:07:30,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1353 states. [2020-09-21 12:07:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1682 transitions. [2020-09-21 12:07:30,731 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1682 transitions. Word has length 83 [2020-09-21 12:07:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:07:30,732 INFO L479 AbstractCegarLoop]: Abstraction has 1353 states and 1682 transitions. [2020-09-21 12:07:30,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:07:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1682 transitions. [2020-09-21 12:07:30,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 12:07:30,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:07:30,737 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] [2020-09-21 12:07:30,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:07:30,737 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:07:30,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:07:30,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1146127589, now seen corresponding path program 1 times [2020-09-21 12:07:30,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:07:30,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245161716] [2020-09-21 12:07:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:07:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:07:30,798 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:07:30,798 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:07:30,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:07:30,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:07:30 BoogieIcfgContainer [2020-09-21 12:07:30,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:07:30,853 INFO L168 Benchmark]: Toolchain (without parser) took 45884.09 ms. Allocated memory was 140.0 MB in the beginning and 769.7 MB in the end (delta: 629.7 MB). Free memory was 101.7 MB in the beginning and 144.2 MB in the end (delta: -42.5 MB). Peak memory consumption was 587.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:07:30,859 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:07:30,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 859.38 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 167.9 MB in the end (delta: -66.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:07:30,865 INFO L168 Benchmark]: Boogie Preprocessor took 140.70 ms. Allocated memory is still 203.4 MB. Free memory was 167.9 MB in the beginning and 163.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:07:30,865 INFO L168 Benchmark]: RCFGBuilder took 1382.66 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 193.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:07:30,869 INFO L168 Benchmark]: TraceAbstraction took 43491.39 ms. Allocated memory was 236.5 MB in the beginning and 769.7 MB in the end (delta: 533.2 MB). Free memory was 193.0 MB in the beginning and 144.2 MB in the end (delta: 48.8 MB). Peak memory consumption was 582.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:07:30,875 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 859.38 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 167.9 MB in the end (delta: -66.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.70 ms. Allocated memory is still 203.4 MB. Free memory was 167.9 MB in the beginning and 163.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1382.66 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 193.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43491.39 ms. Allocated memory was 236.5 MB in the beginning and 769.7 MB in the end (delta: 533.2 MB). Free memory was 193.0 MB in the beginning and 144.2 MB in the end (delta: 48.8 MB). Peak memory consumption was 582.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L617] int pumpRunning = 0; [L618] int systemActive = 1; [L848] int cleanupTimeShifts = 4; [L921] int retValue_acc ; [L922] int tmp ; [L926] FCALL select_helpers() [L927] FCALL select_features() [L928] CALL, EXPR valid_product() [L839] int retValue_acc ; [L842] retValue_acc = 1 [L843] return (retValue_acc); [L928] RET, EXPR valid_product() [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L932] FCALL setup() [L933] CALL runTest() [L915] CALL test() [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) [L569] CALL waterRise() [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 [L569] RET waterRise() [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp___0) [L579] CALL changeMethaneLevel() [L480] COND FALSE !(\read(methaneLevelCritical)) [L483] methaneLevelCritical = 1 [L579] RET changeMethaneLevel() [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L602] CALL timeShift() [L624] COND FALSE !(\read(pumpRunning)) [L631] COND TRUE \read(systemActive) [L633] CALL processEnvironment() [L679] int tmp ; [L682] COND FALSE !(\read(pumpRunning)) [L697] CALL processEnvironment__wrappee__highWaterSensor() [L653] int tmp ; [L656] COND TRUE ! pumpRunning [L658] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L530] int retValue_acc ; [L533] COND FALSE !(waterLevel < 2) [L537] retValue_acc = 0 [L538] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND FALSE !(\read(tmp)) [L787] tmp___0 = 1 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L658] RET, EXPR isHighWaterLevel() [L658] tmp = isHighWaterLevel() [L660] COND TRUE \read(tmp) [L662] CALL activatePump() [L707] pumpRunning = 1 [L662] RET activatePump() [L697] RET processEnvironment__wrappee__highWaterSensor() [L633] RET processEnvironment() [L639] CALL __utac_acc__Specification1_spec__1() [L410] int tmp ; [L411] int tmp___0 ; [L415] CALL, EXPR isMethaneLevelCritical() [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); [L415] RET, EXPR isMethaneLevelCritical() [L415] tmp = isMethaneLevelCritical() [L417] COND TRUE \read(tmp) [L419] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L419] RET, EXPR isPumpRunning() [L419] tmp___0 = isPumpRunning() [L421] COND TRUE \read(tmp___0) [L423] CALL __automaton_fail() [L439] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 43.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 25.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1101 SDtfs, 1770 SDslu, 1011 SDs, 0 SdLazy, 4125 SolverSat, 1095 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 202 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1353occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 526 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 687 NumberOfCodeBlocks, 687 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 591 ConstructedInterpolants, 0 QuantifiedInterpolants, 170290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...