/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:59:37,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:59:37,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:59:37,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:59:37,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:59:37,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:59:37,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:59:37,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:59:37,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:59:37,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:59:37,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:59:37,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:59:37,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:59:37,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:59:37,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:59:37,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:59:37,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:59:37,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:59:37,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:59:37,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:59:37,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:59:37,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:59:37,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:59:37,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:59:37,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:59:37,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:59:37,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:59:37,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:59:37,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:59:37,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:59:37,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:59:37,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:59:37,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:59:37,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:59:37,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:59:37,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:59:37,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:59:37,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:59:37,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:59:37,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:59:37,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:59:37,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:59:37,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:59:37,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:59:37,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:59:37,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:59:37,894 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:59:37,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:59:37,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:59:37,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:59:37,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:59:37,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:59:37,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:59:37,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:59:37,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:59:37,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:59:37,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:59:37,896 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:59:37,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:59:37,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:59:37,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:59:37,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:59:37,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:59:37,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:59:37,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:59:37,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:59:37,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:59:37,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:59:37,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:59:37,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:59:37,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:59:37,899 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;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;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;log-additional-information=true; [2020-09-24 16:59:38,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:59:38,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:59:38,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:59:38,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:59:38,387 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:59:38,389 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2020-09-24 16:59:38,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66b5435cd/5b706b5db56240f6807c4ff578982710/FLAG5d6bb392c [2020-09-24 16:59:39,136 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:59:39,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2020-09-24 16:59:39,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66b5435cd/5b706b5db56240f6807c4ff578982710/FLAG5d6bb392c [2020-09-24 16:59:39,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66b5435cd/5b706b5db56240f6807c4ff578982710 [2020-09-24 16:59:39,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:59:39,391 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:59:39,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:39,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:59:39,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:59:39,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:59:39" (1/1) ... [2020-09-24 16:59:39,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:39, skipping insertion in model container [2020-09-24 16:59:39,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:59:39" (1/1) ... [2020-09-24 16:59:39,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:59:39,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:59:39,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:39,969 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:59:40,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:40,145 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:59:40,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40 WrapperNode [2020-09-24 16:59:40,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:40,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:59:40,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:59:40,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:59:40,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (1/1) ... [2020-09-24 16:59:40,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (1/1) ... [2020-09-24 16:59:40,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (1/1) ... [2020-09-24 16:59:40,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (1/1) ... [2020-09-24 16:59:40,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (1/1) ... [2020-09-24 16:59:40,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (1/1) ... [2020-09-24 16:59:40,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (1/1) ... [2020-09-24 16:59:40,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:59:40,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:59:40,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:59:40,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:59:40,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:59:40,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:59:40,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:59:40,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:59:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:59:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:59:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:59:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 16:59:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:59:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:59:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:59:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:59:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:59:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:59:40,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:59:40,359 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:59:40,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:40,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:40,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:40,360 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:59:40,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:40,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:40,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:40,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:59:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:59:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:59:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:59:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:59:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:59:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:59:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:59:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:59:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:59:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:59:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:59:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:59:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:59:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:59:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:59:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:59:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:59:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:59:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:59:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:59:40,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:59:40,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:59:40,366 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:59:40,366 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:59:40,366 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:59:40,366 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:59:40,366 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:59:40,367 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:59:40,367 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:59:40,367 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:59:40,368 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:59:40,368 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:59:40,368 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:59:40,368 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:59:40,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:40,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:59:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:59:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:59:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:59:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:59:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:59:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 16:59:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:59:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:59:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:59:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:59:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:59:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:59:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:59:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:59:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:59:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:59:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:59:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:59:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:59:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:59:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:59:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:59:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:59:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:59:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:59:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:59:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:59:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:59:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:59:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:59:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:59:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:59:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:59:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:59:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:59:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:59:41,517 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:59:41,517 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:59:41,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:41 BoogieIcfgContainer [2020-09-24 16:59:41,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:59:41,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:59:41,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:59:41,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:59:41,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:59:39" (1/3) ... [2020-09-24 16:59:41,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0a8037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:41, skipping insertion in model container [2020-09-24 16:59:41,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:40" (2/3) ... [2020-09-24 16:59:41,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0a8037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:41, skipping insertion in model container [2020-09-24 16:59:41,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:41" (3/3) ... [2020-09-24 16:59:41,534 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2020-09-24 16:59:41,545 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:59:41,556 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:59:41,579 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:59:41,612 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:59:41,612 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:59:41,612 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:59:41,612 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:59:41,612 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:59:41,612 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:59:41,613 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:59:41,613 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:59:41,644 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states. [2020-09-24 16:59:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:59:41,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:41,665 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:41,666 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:41,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:41,674 INFO L82 PathProgramCache]: Analyzing trace with hash -593535945, now seen corresponding path program 1 times [2020-09-24 16:59:41,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:41,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846572516] [2020-09-24 16:59:41,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:42,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:42,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:43,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:44,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:54,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:54,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:59:54,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:59:54,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12367 [2020-09-24 16:59:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:59:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:59:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 16:59:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:54,905 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:54,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:55,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-24 16:59:55,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:59:55,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:55,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:55,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:55,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:55,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:55,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:55,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:55,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:55,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:55,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:55,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:59:55,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:55,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:55,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:55,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:55,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:55,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:55,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:55,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:55,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:55,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:55,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:55,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:55,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:59:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:55,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:59:55,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:59:55,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:55,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:55,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:55,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:55,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:55,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:59:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:55,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:55,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:55,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:55,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:55,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:59:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:55,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:55,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:55,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:55,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:55,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:59:55,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:55,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:55,563 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:59:55,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846572516] [2020-09-24 16:59:55,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:55,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:59:55,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201710767] [2020-09-24 16:59:55,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:59:55,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:55,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:59:55,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:59:55,598 INFO L87 Difference]: Start difference. First operand 363 states. Second operand 9 states. [2020-09-24 16:59:56,224 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:57,110 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:57,462 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:59,130 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:59,441 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:59,791 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:00:00,219 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:00:00,493 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:00:00,819 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:00:02,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:00:02,009 INFO L93 Difference]: Finished difference Result 719 states and 862 transitions. [2020-09-24 17:00:02,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 17:00:02,010 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 17:00:02,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:00:02,039 INFO L225 Difference]: With dead ends: 719 [2020-09-24 17:00:02,039 INFO L226 Difference]: Without dead ends: 480 [2020-09-24 17:00:02,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 17:00:02,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-24 17:00:02,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 432. [2020-09-24 17:00:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-09-24 17:00:02,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 482 transitions. [2020-09-24 17:00:02,176 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 482 transitions. Word has length 160 [2020-09-24 17:00:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:00:02,178 INFO L479 AbstractCegarLoop]: Abstraction has 432 states and 482 transitions. [2020-09-24 17:00:02,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:00:02,178 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 482 transitions. [2020-09-24 17:00:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 17:00:02,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:00:02,185 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:00:02,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:00:02,185 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:00:02,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:00:02,186 INFO L82 PathProgramCache]: Analyzing trace with hash -2071947246, now seen corresponding path program 1 times [2020-09-24 17:00:02,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:00:02,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340281889] [2020-09-24 17:00:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:00:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:02,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:02,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:04,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:04,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 17:00:04,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:00:04,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2248 [2020-09-24 17:00:04,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:00:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 17:00:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:00:04,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:04,848 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:00:04,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:00:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:04,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:04,951 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:04,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:00:04,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:04,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 17:00:04,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:04,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:04,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:04,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:04,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:04,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:00:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:04,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:04,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:00:04,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:00:04,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:04,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:04,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:00:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:04,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:04,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:00:04,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:00:04,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:04,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:00:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:04,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:04,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:04,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:00:05,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:00:05,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:00:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:00:05,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:00:05,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:00:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:00:05,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:00:05,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:00:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 17:00:05,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:00:05,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:00:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:00:05,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:00:05,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 17:00:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:00:05,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 17:00:05,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:00:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 17:00:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:00:05,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:00:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 17:00:05,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 17:00:05,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:00:05,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 17:00:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:00:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:00:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 17:00:05,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 17:00:05,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:00:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:00:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:00:05,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:00:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:00:05,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 17:00:05,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:00:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 17:00:05,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:00:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:00:05,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:00:05,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:00:05,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:00:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 17:00:05,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 17:00:05,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 17:00:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 17:00:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:00:05,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:00:05,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 17:00:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:00:05,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:00:05,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 17:00:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:00:05,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:00:05,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:00:05,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 17:00:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:00:05,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:00:05,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:00:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:00:05,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 17:00:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:05,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:05,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:00:05,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:00:05,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:00:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:00:05,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:00:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:00:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:00:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:00:05,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:00:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 17:00:05,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340281889] [2020-09-24 17:00:05,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:00:05,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:00:05,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507407569] [2020-09-24 17:00:05,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:00:05,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:00:05,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:00:05,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:00:05,674 INFO L87 Difference]: Start difference. First operand 432 states and 482 transitions. Second operand 10 states. [2020-09-24 17:00:07,425 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:00:07,677 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 17:00:08,021 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 17:00:08,357 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:00:08,676 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 17:00:09,005 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:00:10,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:00:10,278 INFO L93 Difference]: Finished difference Result 844 states and 1021 transitions. [2020-09-24 17:00:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:00:10,279 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 226 [2020-09-24 17:00:10,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:00:10,294 INFO L225 Difference]: With dead ends: 844 [2020-09-24 17:00:10,295 INFO L226 Difference]: Without dead ends: 527 [2020-09-24 17:00:10,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 17:00:10,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-09-24 17:00:10,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 446. [2020-09-24 17:00:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-24 17:00:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 502 transitions. [2020-09-24 17:00:10,410 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 502 transitions. Word has length 226 [2020-09-24 17:00:10,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:00:10,411 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 502 transitions. [2020-09-24 17:00:10,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:00:10,411 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 502 transitions. [2020-09-24 17:00:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-09-24 17:00:10,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:00:10,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:00:10,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:00:10,418 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:00:10,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:00:10,419 INFO L82 PathProgramCache]: Analyzing trace with hash 143285359, now seen corresponding path program 1 times [2020-09-24 17:00:10,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:00:10,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327141615] [2020-09-24 17:00:10,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:00:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:00:10,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:10,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:10,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:11,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:11,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:00:16,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking...