/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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_spec5_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:28:38,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:28:38,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:28:38,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:28:38,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:28:38,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:28:38,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:28:38,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:28:38,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:28:38,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:28:38,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:28:38,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:28:38,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:28:38,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:28:38,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:28:38,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:28:38,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:28:38,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:28:38,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:28:38,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:28:38,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:28:38,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:28:38,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:28:38,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:28:38,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:28:38,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:28:38,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:28:38,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:28:38,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:28:38,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:28:38,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:28:38,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:28:38,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:28:38,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:28:38,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:28:38,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:28:38,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:28:38,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:28:38,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:28:38,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:28:38,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:28:38,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:28:38,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:28:38,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:28:38,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:28:38,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:28:38,377 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:28:38,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:28:38,378 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:28:38,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:28:38,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:28:38,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:28:38,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:28:38,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:28:38,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:28:38,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:28:38,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:28:38,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:28:38,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:28:38,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:28:38,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:28:38,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:28:38,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:28:38,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:28:38,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:28:38,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:28:38,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:28:38,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:28:38,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:28:38,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:28:38,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:28:38,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:28:38,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:28:38,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:28:38,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:28:38,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:28:38,886 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:28:38,887 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-24 21:28:38,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da1db1992/eac024f5b6334c02a9004418be10c6d0/FLAG1129f14ee [2020-09-24 21:28:39,614 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:28:39,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-24 21:28:39,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da1db1992/eac024f5b6334c02a9004418be10c6d0/FLAG1129f14ee [2020-09-24 21:28:39,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da1db1992/eac024f5b6334c02a9004418be10c6d0 [2020-09-24 21:28:39,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:28:39,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:28:39,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:28:39,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:28:39,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:28:39,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:28:39" (1/1) ... [2020-09-24 21:28:39,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29805dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:39, skipping insertion in model container [2020-09-24 21:28:39,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:28:39" (1/1) ... [2020-09-24 21:28:39,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:28:40,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:28:40,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:28:40,582 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:28:40,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:28:40,728 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:28:40,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40 WrapperNode [2020-09-24 21:28:40,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:28:40,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:28:40,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:28:40,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:28:40,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (1/1) ... [2020-09-24 21:28:40,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (1/1) ... [2020-09-24 21:28:40,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (1/1) ... [2020-09-24 21:28:40,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (1/1) ... [2020-09-24 21:28:40,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (1/1) ... [2020-09-24 21:28:40,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (1/1) ... [2020-09-24 21:28:40,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (1/1) ... [2020-09-24 21:28:40,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:28:40,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:28:40,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:28:40,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:28:40,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:28:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:28:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:28:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:28:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:28:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:28:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:28:40,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:28:40,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:28:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:28:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:28:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:28:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:28:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:28:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:28:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:28:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:28:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:28:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:28:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:28:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:28:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:28:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:28:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:28:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:28:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:28:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:28:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:28:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:28:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:28:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:28:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:28:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:28:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:28:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:28:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:28:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:28:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:28:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:28:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:28:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:28:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:28:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:28:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:28:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:28:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:28:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:28:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:28:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:28:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:28:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:28:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:28:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:28:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:28:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:28:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:28:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:28:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:28:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:28:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:28:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:28:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:28:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:28:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:28:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:28:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:28:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:28:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:28:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:28:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:28:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:28:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:28:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:28:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:28:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:28:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:28:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:28:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:28:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:28:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:28:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:28:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:28:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:28:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:28:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:28:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:28:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:28:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:28:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:28:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:28:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:28:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:28:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:28:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:28:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:28:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:28:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:28:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:28:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:28:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:28:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:28:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:28:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:28:42,230 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:28:42,230 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:28:42,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:28:42 BoogieIcfgContainer [2020-09-24 21:28:42,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:28:42,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:28:42,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:28:42,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:28:42,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:28:39" (1/3) ... [2020-09-24 21:28:42,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a954479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:28:42, skipping insertion in model container [2020-09-24 21:28:42,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:40" (2/3) ... [2020-09-24 21:28:42,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a954479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:28:42, skipping insertion in model container [2020-09-24 21:28:42,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:28:42" (3/3) ... [2020-09-24 21:28:42,250 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2020-09-24 21:28:42,263 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:28:42,276 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:28:42,301 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:28:42,336 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:28:42,336 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:28:42,336 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:28:42,336 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:28:42,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:28:42,337 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:28:42,337 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:28:42,337 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:28:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-24 21:28:42,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 21:28:42,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:42,391 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:42,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:42,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:42,400 INFO L82 PathProgramCache]: Analyzing trace with hash 797820518, now seen corresponding path program 1 times [2020-09-24 21:28:42,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:42,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270786935] [2020-09-24 21:28:42,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:43,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:44,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 21:28:47,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:28:47,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:28:47,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:28:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:28:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 21:28:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:28:48,325 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:48,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:48,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-24 21:28:48,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:28:48,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:48,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:48,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:48,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:48,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:48,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:48,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:48,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:48,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:48,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:28:48,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:48,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:48,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:48,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:48,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:48,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:48,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:48,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:48,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:48,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:28:48,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:48,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:28:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:48,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:28:48,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:28:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:48,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:48,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:48,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:48,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:48,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:28:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:48,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:48,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:48,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:48,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 21:28:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:48,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:28:48,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:48,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 21:28:48,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270786935] [2020-09-24 21:28:48,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:48,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:28:48,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687756340] [2020-09-24 21:28:48,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:28:48,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:48,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:28:48,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:28:48,977 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 9 states. [2020-09-24 21:28:49,608 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:50,425 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:28:50,727 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:28:52,367 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:52,739 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:53,073 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:53,514 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:53,833 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:54,156 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:55,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:28:55,042 INFO L93 Difference]: Finished difference Result 674 states and 804 transitions. [2020-09-24 21:28:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:28:55,044 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 21:28:55,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:28:55,067 INFO L225 Difference]: With dead ends: 674 [2020-09-24 21:28:55,067 INFO L226 Difference]: Without dead ends: 447 [2020-09-24 21:28:55,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:28:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-24 21:28:55,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 399. [2020-09-24 21:28:55,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-09-24 21:28:55,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 444 transitions. [2020-09-24 21:28:55,218 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 444 transitions. Word has length 160 [2020-09-24 21:28:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:28:55,219 INFO L479 AbstractCegarLoop]: Abstraction has 399 states and 444 transitions. [2020-09-24 21:28:55,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:28:55,219 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 444 transitions. [2020-09-24 21:28:55,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-24 21:28:55,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:55,227 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:55,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:28:55,227 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:55,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:55,231 INFO L82 PathProgramCache]: Analyzing trace with hash -548905277, now seen corresponding path program 1 times [2020-09-24 21:28:55,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:55,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851176801] [2020-09-24 21:28:55,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:55,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:55,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:55,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:55,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:00,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:00,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-09-24 21:29:00,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:29:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-24 21:29:00,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:00,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:29:00,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:29:00,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-24 21:29:00,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:00,639 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:29:00,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:00,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:00,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:00,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:29:00,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-24 21:29:00,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:29:00,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:29:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:01,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:01,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:01,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:01,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:29:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:01,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:01,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:01,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:29:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:01,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:29:01,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:01,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:01,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:01,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:29:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:01,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:29:01,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:01,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:29:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:01,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:01,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:01,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:01,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:29:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 21:29:01,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 21:29:01,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:29:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:29:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 21:29:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:01,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:29:01,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:01,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:29:01,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:01,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:01,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:29:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:29:01,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:29:01,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:29:01,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:29:01,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:01,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:01,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:29:01,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:29:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:29:01,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:01,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 21:29:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:01,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:01,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:29:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:01,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:29:01,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:01,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 21:29:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:29:01,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:29:01,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 21:29:01,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:29:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:29:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:29:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:01,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:29:01,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 21:29:01,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:29:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:29:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:29:01,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:29:01,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:29:01,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:29:01,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:01,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:29:01,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:29:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:29:01,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:01,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:29:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:29:01,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:29:01,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:29:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:29:01,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:01,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:01,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:01,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:29:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:01,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:01,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 21:29:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:01,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:01,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:01,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-24 21:29:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:01,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:01,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:01,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:01,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:01,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:01,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:01,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 21:29:01,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851176801] [2020-09-24 21:29:01,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:29:01,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 21:29:01,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544817137] [2020-09-24 21:29:01,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 21:29:01,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:29:01,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 21:29:01,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:29:01,911 INFO L87 Difference]: Start difference. First operand 399 states and 444 transitions. Second operand 19 states. [2020-09-24 21:29:02,475 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:04,038 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 21:29:04,831 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:05,218 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:29:05,605 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:05,995 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:29:06,346 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:06,958 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:07,325 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:29:07,895 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 21:29:08,227 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:29:08,822 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 21:29:09,185 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:09,801 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 21:29:10,148 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:29:10,736 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 21:29:11,060 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:11,680 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 21:29:12,730 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 21:29:13,353 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-24 21:29:13,971 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-09-24 21:29:14,691 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 21:29:15,395 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-24 21:29:16,028 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 21:29:18,516 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:18,833 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:19,179 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:19,495 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:19,824 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:20,168 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:20,679 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:20,997 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:29:21,353 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:21,685 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:29:22,030 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:29:22,367 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 21:29:22,741 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:23,089 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:29:23,443 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:23,763 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:29:24,103 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:24,422 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:29:25,969 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:26,305 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:29:26,673 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:27,043 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:29:27,386 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:29,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:29,766 INFO L93 Difference]: Finished difference Result 1807 states and 2592 transitions. [2020-09-24 21:29:29,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-09-24 21:29:29,766 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 257 [2020-09-24 21:29:29,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:29,807 INFO L225 Difference]: With dead ends: 1807 [2020-09-24 21:29:29,807 INFO L226 Difference]: Without dead ends: 1523 [2020-09-24 21:29:29,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2793 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=1265, Invalid=6925, Unknown=0, NotChecked=0, Total=8190 [2020-09-24 21:29:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-09-24 21:29:30,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1184. [2020-09-24 21:29:30,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1184 states. [2020-09-24 21:29:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1442 transitions. [2020-09-24 21:29:30,027 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1442 transitions. Word has length 257 [2020-09-24 21:29:30,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:30,028 INFO L479 AbstractCegarLoop]: Abstraction has 1184 states and 1442 transitions. [2020-09-24 21:29:30,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 21:29:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1442 transitions. [2020-09-24 21:29:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 21:29:30,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:30,033 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:30,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:29:30,033 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:30,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:30,034 INFO L82 PathProgramCache]: Analyzing trace with hash 572483222, now seen corresponding path program 1 times [2020-09-24 21:29:30,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:30,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145956729] [2020-09-24 21:29:30,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:30,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:31,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:31,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-24 21:29:31,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:29:31,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1693 [2020-09-24 21:29:31,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 21:29:31,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:29:31,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,052 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:29:32,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:29:32,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 21:29:32,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:29:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:32,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:29:32,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:29:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:32,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:32,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:32,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:29:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:32,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:32,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:29:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:32,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:29:32,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:29:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:32,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:32,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:29:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:32,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:32,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:29:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:32,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:32,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:29:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:29:32,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:29:32,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 21:29:32,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:29:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:29:32,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:32,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:29:32,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 21:29:32,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:29:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:29:32,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:29:32,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:29:32,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:29:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:29:32,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:29:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:29:32,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:29:32,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:29:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:32,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:29:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:29:32,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:29:32,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:29:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:29:32,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:32,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:32,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:32,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:29:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:32,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:32,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 21:29:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:32,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:32,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-24 21:29:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:32,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:32,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:32,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:32,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:32,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:29:32,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145956729] [2020-09-24 21:29:32,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:29:32,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:29:32,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743644803] [2020-09-24 21:29:32,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:29:32,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:29:32,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:29:32,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:29:32,705 INFO L87 Difference]: Start difference. First operand 1184 states and 1442 transitions. Second operand 10 states. [2020-09-24 21:29:33,704 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 190