/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:47:47,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:47:47,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:47:47,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:47:47,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:47:47,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:47:47,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:47:47,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:47:47,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:47:47,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:47:47,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:47:47,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:47:47,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:47:47,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:47:47,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:47:47,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:47:47,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:47:47,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:47:47,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:47:47,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:47:47,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:47:47,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:47:47,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:47:47,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:47:47,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:47:47,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:47:47,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:47:47,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:47:47,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:47:47,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:47:47,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:47:47,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:47:47,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:47:47,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:47:47,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:47:47,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:47:47,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:47:47,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:47:47,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:47:47,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:47:47,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:47:47,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:47:47,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:47:47,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:47:47,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:47:47,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:47:47,373 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:47:47,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:47:47,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:47:47,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:47:47,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:47:47,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:47:47,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:47:47,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:47:47,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:47:47,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:47:47,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:47:47,376 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:47:47,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:47:47,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:47:47,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:47:47,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:47:47,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:47:47,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:47:47,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:47:47,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:47:47,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:47:47,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:47:47,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:47:47,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:47:47,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:47:47,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:47:47,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:47:47,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:47:47,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:47:47,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:47:47,863 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:47:47,864 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2020-09-25 09:47:47,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4fbceaf3/b815f1279ad64298a489ef10797b041a/FLAGeb82f581f [2020-09-25 09:47:48,606 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:47:48,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2020-09-25 09:47:48,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4fbceaf3/b815f1279ad64298a489ef10797b041a/FLAGeb82f581f [2020-09-25 09:47:48,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4fbceaf3/b815f1279ad64298a489ef10797b041a [2020-09-25 09:47:48,901 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:47:48,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:47:48,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:47:48,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:47:48,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:47:48,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:47:48" (1/1) ... [2020-09-25 09:47:48,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a11bedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:48, skipping insertion in model container [2020-09-25 09:47:48,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:47:48" (1/1) ... [2020-09-25 09:47:48,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:47:49,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:47:49,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:47:49,451 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:47:49,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:47:49,697 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:47:49,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49 WrapperNode [2020-09-25 09:47:49,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:47:49,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:47:49,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:47:49,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:47:49,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (1/1) ... [2020-09-25 09:47:49,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (1/1) ... [2020-09-25 09:47:49,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (1/1) ... [2020-09-25 09:47:49,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (1/1) ... [2020-09-25 09:47:49,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (1/1) ... [2020-09-25 09:47:49,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (1/1) ... [2020-09-25 09:47:49,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (1/1) ... [2020-09-25 09:47:49,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:47:49,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:47:49,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:47:49,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:47:49,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:47:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:47:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:47:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:47:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:47:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:47:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:47:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:47:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:47:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:47:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:47:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:47:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:47:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:47:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:47:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 09:47:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:47:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:47:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:47:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:47:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:47:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:47:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:47:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:47:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 09:47:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 09:47:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:47:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:47:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:47:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:47:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:47:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:47:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:47:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:47:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:47:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:47:49,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:47:49,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:47:49,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:47:49,899 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:47:49,899 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:47:49,899 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:47:49,900 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:47:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:47:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:47:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:47:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:47:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:47:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:47:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:47:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:47:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:47:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:47:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:47:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:47:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:47:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:47:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:47:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:47:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:47:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:47:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:47:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:47:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:47:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:47:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:47:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:47:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:47:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:47:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:47:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:47:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:47:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:47:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:47:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:47:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:47:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:47:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:47:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 09:47:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:47:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:47:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:47:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:47:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:47:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 09:47:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:47:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 09:47:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:47:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:47:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:47:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:47:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:47:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:47:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:47:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:47:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:47:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:47:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:47:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:47:51,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:47:51,178 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:47:51,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:47:51 BoogieIcfgContainer [2020-09-25 09:47:51,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:47:51,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:47:51,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:47:51,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:47:51,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:47:48" (1/3) ... [2020-09-25 09:47:51,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f20bbec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:47:51, skipping insertion in model container [2020-09-25 09:47:51,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:47:49" (2/3) ... [2020-09-25 09:47:51,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f20bbec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:47:51, skipping insertion in model container [2020-09-25 09:47:51,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:47:51" (3/3) ... [2020-09-25 09:47:51,197 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2020-09-25 09:47:51,212 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:47:51,226 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:47:51,252 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:47:51,290 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:47:51,290 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:47:51,290 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:47:51,291 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:47:51,291 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:47:51,291 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:47:51,291 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:47:51,291 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:47:51,325 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-09-25 09:47:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:47:51,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:47:51,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:47:51,346 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:47:51,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:47:51,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1512755977, now seen corresponding path program 1 times [2020-09-25 09:47:51,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:47:51,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961974422] [2020-09-25 09:47:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:47:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:51,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:52,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:52,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:53,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:54,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:56,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:56,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:47:56,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:47:56,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 09:47:56,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:56,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:56,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:47:56,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 09:47:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 09:47:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 21 [2020-09-25 09:47:57,539 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:47:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:47:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:57,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:57,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:57,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:47:57,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 09:47:57,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:57,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 09:47:57,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:58,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:47:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:58,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:58,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:58,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:58,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:47:58,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:58,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:58,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:58,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:58,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:47:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:58,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:58,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:58,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:58,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:47:58,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:58,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:58,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:58,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:58,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:58,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:58,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:47:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:58,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:58,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:58,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:58,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:58,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:47:58,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:58,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:58,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:47:58,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:47:58,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:47:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:58,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:58,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:58,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:58,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:58,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:47:58,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:58,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:58,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:47:58,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:47:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:58,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:58,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:58,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:47:58,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:58,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:47:58,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:58,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:58,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:47:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:47:58,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 09:47:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:58,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:58,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:58,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:58,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:58,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 09:47:58,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:58,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:58,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:47:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:47:58,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:58,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 09:47:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:58,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:58,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:58,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:58,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:58,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:58,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:58,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:47:58,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:58,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:58,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:47:58,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961974422] [2020-09-25 09:47:58,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:47:58,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:47:58,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72461755] [2020-09-25 09:47:58,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:47:58,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:47:58,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:47:58,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:47:58,404 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 9 states. [2020-09-25 09:47:59,131 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:48:00,301 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:48:00,655 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:48:01,008 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:48:01,362 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:48:01,701 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:48:02,541 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:48:02,882 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:48:03,477 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:05,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:05,162 INFO L93 Difference]: Finished difference Result 737 states and 889 transitions. [2020-09-25 09:48:05,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 09:48:05,165 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 09:48:05,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:05,193 INFO L225 Difference]: With dead ends: 737 [2020-09-25 09:48:05,194 INFO L226 Difference]: Without dead ends: 509 [2020-09-25 09:48:05,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 09:48:05,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-09-25 09:48:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 437. [2020-09-25 09:48:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-09-25 09:48:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 488 transitions. [2020-09-25 09:48:05,351 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 488 transitions. Word has length 148 [2020-09-25 09:48:05,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:05,356 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 488 transitions. [2020-09-25 09:48:05,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:48:05,356 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 488 transitions. [2020-09-25 09:48:05,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 09:48:05,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:05,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:05,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:48:05,370 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:05,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:05,375 INFO L82 PathProgramCache]: Analyzing trace with hash 843597651, now seen corresponding path program 1 times [2020-09-25 09:48:05,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:05,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733699546] [2020-09-25 09:48:05,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:05,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:05,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:05,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:07,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:10,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:10,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 09:48:10,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:48:10,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 09:48:10,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:10,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:48:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:48:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 09:48:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:10,772 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:48:10,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:10,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:48:11,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 09:48:11,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:48:11,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:11,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:48:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:11,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:11,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:11,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:11,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:11,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:11,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:48:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:11,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:11,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:11,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:11,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:11,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:48:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:11,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:11,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:11,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 36 [2020-09-25 09:48:11,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:48:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:11,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:11,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:48:11,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:11,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:11,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:48:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:11,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:48:11,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:11,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:48:11,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:11,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 09:48:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:11,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:48:11,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:48:11,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:48:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:11,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 09:48:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:11,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:11,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:11,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:11,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 09:48:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:11,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:11,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:11,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:11,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:11,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:48:11,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:11,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:11,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:11,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:11,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:11,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:48:11,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733699546] [2020-09-25 09:48:11,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:11,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:48:11,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22110526] [2020-09-25 09:48:11,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:48:11,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:11,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:48:11,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:48:11,392 INFO L87 Difference]: Start difference. First operand 437 states and 488 transitions. Second operand 10 states. [2020-09-25 09:48:11,901 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:48:13,074 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:48:13,664 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 09:48:14,048 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:48:14,397 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:48:14,722 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:48:15,562 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:48:15,872 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:48:16,249 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:17,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:17,653 INFO L93 Difference]: Finished difference Result 1038 states and 1261 transitions. [2020-09-25 09:48:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 09:48:17,653 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-25 09:48:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:17,662 INFO L225 Difference]: With dead ends: 1038 [2020-09-25 09:48:17,662 INFO L226 Difference]: Without dead ends: 716 [2020-09-25 09:48:17,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 09:48:17,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-09-25 09:48:17,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 606. [2020-09-25 09:48:17,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-09-25 09:48:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 689 transitions. [2020-09-25 09:48:17,776 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 689 transitions. Word has length 163 [2020-09-25 09:48:17,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:17,777 INFO L479 AbstractCegarLoop]: Abstraction has 606 states and 689 transitions. [2020-09-25 09:48:17,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:48:17,777 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 689 transitions. [2020-09-25 09:48:17,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 09:48:17,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:17,782 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:17,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:48:17,782 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:17,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:17,783 INFO L82 PathProgramCache]: Analyzing trace with hash 971522961, now seen corresponding path program 1 times [2020-09-25 09:48:17,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:17,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845946258] [2020-09-25 09:48:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:17,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:18,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:18,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:18,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:18,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:22,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:22,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-09-25 09:48:22,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:48:22,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 09:48:22,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:22,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:48:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 09:48:22,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,187 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:48:23,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:48:23,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 09:48:23,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:48:23,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:48:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:23,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:23,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:23,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:23,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:48:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:23,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:23,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:23,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:23,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:48:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:23,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:23,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:48:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:23,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:48:23,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:23,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:23,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:48:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:48:23,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:23,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:48:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 09:48:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:48:23,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:23,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:48:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:23,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 09:48:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 09:48:23,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:23,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 09:48:23,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 09:48:23,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 09:48:23,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:23,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 09:48:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:23,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:48:23,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:23,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 09:48:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 09:48:23,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:23,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 09:48:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:23,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 09:48:23,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:23,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:23,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:23,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:23,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:23,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:23,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:23,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 09:48:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:48:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:48:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:48:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:23,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 09:48:23,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 09:48:23,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:48:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 09:48:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:48:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:23,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:23,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:23,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:23,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:48:23,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:23,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 09:48:23,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:23,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:23,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:48:23,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:48:23,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:48:23,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:48:24,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 09:48:24,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:48:24,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:48:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:48:24,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:24,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:24,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:48:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:48:24,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:48:24,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 09:48:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:24,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-25 09:48:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:24,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:48:24,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:24,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-25 09:48:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:24,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:24,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:24,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:24,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 09:48:24,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845946258] [2020-09-25 09:48:24,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:48:24,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 09:48:24,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389709600] [2020-09-25 09:48:24,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 09:48:24,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:24,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 09:48:24,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:48:24,298 INFO L87 Difference]: Start difference. First operand 606 states and 689 transitions. Second operand 14 states. [2020-09-25 09:48:24,892 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:48:26,205 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:48:26,546 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 09:48:26,873 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 09:48:27,202 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:48:27,541 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:48:27,844 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:48:29,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:29,787 INFO L93 Difference]: Finished difference Result 1316 states and 1636 transitions. [2020-09-25 09:48:29,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 09:48:29,792 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 257 [2020-09-25 09:48:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:29,799 INFO L225 Difference]: With dead ends: 1316 [2020-09-25 09:48:29,799 INFO L226 Difference]: Without dead ends: 825 [2020-09-25 09:48:29,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2020-09-25 09:48:29,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-09-25 09:48:29,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 634. [2020-09-25 09:48:29,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-25 09:48:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 721 transitions. [2020-09-25 09:48:29,888 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 721 transitions. Word has length 257 [2020-09-25 09:48:29,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:29,889 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 721 transitions. [2020-09-25 09:48:29,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 09:48:29,889 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 721 transitions. [2020-09-25 09:48:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-25 09:48:29,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:29,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:29,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:48:29,893 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1367198544, now seen corresponding path program 1 times [2020-09-25 09:48:29,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:29,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843521348] [2020-09-25 09:48:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:29,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:30,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:33,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:33,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-25 09:48:33,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:48:33,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3454 [2020-09-25 09:48:33,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:33,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:33,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:48:33,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 09:48:33,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 09:48:33,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:33,752 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:48:33,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:33,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:33,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:33,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:48:33,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:33,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 09:48:33,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:33,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:33,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:33,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:33,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:48:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:33,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:33,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:33,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:33,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:33,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:33,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:33,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:33,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:33,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:48:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:33,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:33,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:33,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:33,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:33,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:48:33,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:33,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:33,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:33,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:33,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:33,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:33,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:48:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:33,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:33,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:33,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:33,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:33,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:33,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:33,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:33,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:48:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:33,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:33,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:33,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:33,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:33,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:33,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:33,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:33,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:33,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:48:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:33,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:33,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:33,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:48:33,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:33,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:33,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:33,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:48:33,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:33,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 09:48:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:48:34,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:34,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:48:34,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:34,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:34,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:48:34,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:34,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 09:48:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 09:48:34,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:48:34,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 09:48:34,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 09:48:34,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:34,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 09:48:34,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:48:34,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 09:48:34,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:34,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:48:34,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:48:34,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:34,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:48:34,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:34,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 09:48:34,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:48:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:48:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:34,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:48:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:48:34,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:34,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 09:48:34,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:48:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:48:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:48:34,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:48:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:48:34,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:34,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:48:34,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:34,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:34,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:48:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:48:34,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:34,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 09:48:34,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:34,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:48:34,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 09:48:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:34,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:34,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:34,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:34,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:34,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 09:48:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:34,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:34,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:34,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:34,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:48:34,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843521348] [2020-09-25 09:48:34,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:34,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 09:48:34,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463576431] [2020-09-25 09:48:34,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 09:48:34,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:34,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 09:48:34,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:48:34,605 INFO L87 Difference]: Start difference. First operand 634 states and 721 transitions. Second operand 11 states. [2020-09-25 09:48:35,373 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:48:36,354 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:48:36,679 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 194