/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=SHALLOWEST --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_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:39:33,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:39:33,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:39:33,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:39:33,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:39:33,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:39:33,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:39:33,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:39:33,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:39:33,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:39:33,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:39:33,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:39:33,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:39:33,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:39:33,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:39:33,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:39:33,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:39:33,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:39:33,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:39:33,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:39:33,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:39:33,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:39:33,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:39:33,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:39:33,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:39:33,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:39:33,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:39:33,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:39:33,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:39:33,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:39:33,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:39:33,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:39:33,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:39:33,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:39:33,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:39:33,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:39:33,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:39:33,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:39:33,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:39:33,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:39:33,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:39:33,174 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 23:39:33,228 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:39:33,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:39:33,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:39:33,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:39:33,230 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:39:33,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:39:33,234 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:39:33,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:39:33,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:39:33,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:39:33,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:39:33,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:39:33,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:39:33,236 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:39:33,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:39:33,237 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:39:33,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:39:33,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:39:33,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:39:33,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:39:33,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:39:33,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:39:33,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:39:33,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:39:33,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:39:33,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:39:33,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:39:33,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:39:33,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:39:33,240 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:39:33,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:39:33,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:39:33,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:39:33,720 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:39:33,720 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:39:33,722 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-24 23:39:33,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea1e4d3af/ba8ee55be98c49b28ec3649d64c9c11a/FLAG06717021c [2020-09-24 23:39:34,399 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:39:34,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-24 23:39:34,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea1e4d3af/ba8ee55be98c49b28ec3649d64c9c11a/FLAG06717021c [2020-09-24 23:39:34,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea1e4d3af/ba8ee55be98c49b28ec3649d64c9c11a [2020-09-24 23:39:34,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:39:34,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:39:34,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:39:34,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:39:34,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:39:34,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:39:34" (1/1) ... [2020-09-24 23:39:34,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:34, skipping insertion in model container [2020-09-24 23:39:34,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:39:34" (1/1) ... [2020-09-24 23:39:34,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:39:34,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:39:35,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:39:35,245 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:39:35,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:39:35,367 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:39:35,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35 WrapperNode [2020-09-24 23:39:35,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:39:35,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:39:35,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:39:35,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:39:35,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (1/1) ... [2020-09-24 23:39:35,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (1/1) ... [2020-09-24 23:39:35,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (1/1) ... [2020-09-24 23:39:35,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (1/1) ... [2020-09-24 23:39:35,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (1/1) ... [2020-09-24 23:39:35,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (1/1) ... [2020-09-24 23:39:35,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (1/1) ... [2020-09-24 23:39:35,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:39:35,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:39:35,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:39:35,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:39:35,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (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 23:39:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:39:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:39:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:39:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:39:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:39:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:39:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:39:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:39:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:39:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:39:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:39:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:39:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:39:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:39:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:39:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:39:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:39:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:39:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:39:35,546 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:39:35,546 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:39:35,546 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:39:35,546 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:39:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:39:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:39:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:39:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:39:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:39:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:39:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:39:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:39:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:39:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:39:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:39:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:39:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:39:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:39:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:39:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:39:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:39:35,550 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:39:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:39:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:39:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:39:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:39:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:39:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:39:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:39:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:39:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:39:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:39:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:39:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:39:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:39:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:39:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:39:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:39:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:39:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:39:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:39:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:39:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:39:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:39:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:39:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:39:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:39:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:39:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:39:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:39:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:39:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:39:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:39:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:39:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:39:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:39:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:39:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:39:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:39:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:39:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:39:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:39:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:39:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:39:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:39:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:39:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:39:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:39:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:39:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:39:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:39:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:39:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:39:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:39:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:39:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:39:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:39:36,839 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:39:36,839 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:39:36,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:39:36 BoogieIcfgContainer [2020-09-24 23:39:36,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:39:36,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:39:36,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:39:36,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:39:36,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:39:34" (1/3) ... [2020-09-24 23:39:36,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5791f468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:39:36, skipping insertion in model container [2020-09-24 23:39:36,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:35" (2/3) ... [2020-09-24 23:39:36,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5791f468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:39:36, skipping insertion in model container [2020-09-24 23:39:36,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:39:36" (3/3) ... [2020-09-24 23:39:36,864 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-09-24 23:39:36,875 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:39:36,890 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:39:36,908 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:39:36,943 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:39:36,943 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:39:36,943 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:39:36,943 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:39:36,943 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:39:36,944 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:39:36,944 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:39:36,944 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:39:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 23:39:36,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:39:36,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:36,991 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] [2020-09-24 23:39:36,992 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:36,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:37,000 INFO L82 PathProgramCache]: Analyzing trace with hash 627708892, now seen corresponding path program 1 times [2020-09-24 23:39:37,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:37,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43858820] [2020-09-24 23:39:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:37,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:37,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:39,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:39,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:42,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:42,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:39:42,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:42,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-24 23:39:42,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:39:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:39:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:39:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-24 23:39:43,082 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:43,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:43,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:43,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:43,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:43,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-24 23:39:43,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:39:43,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:43,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:43,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:43,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:43,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:43,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:43,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:39:43,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:43,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:43,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:43,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:43,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:43,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:43,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:43,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:43,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:43,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:43,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:39:43,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:43,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:43,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:43,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:43,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 23:39:43,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:43,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:43,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:43,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:43,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:43,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:43,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:43,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:39:43,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:43,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:43,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:43,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:39:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:43,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:43,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:43,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:43,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:39:43,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:43,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:39:43,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:39:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:43,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:43,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:43,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:43,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:43,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:43,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:43,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:43,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:43,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:43,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43858820] [2020-09-24 23:39:43,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:43,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:39:43,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584151844] [2020-09-24 23:39:43,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:39:43,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:43,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:39:43,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:39:43,861 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 8 states. [2020-09-24 23:39:44,473 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:45,390 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:45,757 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:46,185 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:46,596 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:46,947 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:47,273 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:47,575 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:49,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:49,631 INFO L93 Difference]: Finished difference Result 661 states and 811 transitions. [2020-09-24 23:39:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:39:49,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:39:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:49,667 INFO L225 Difference]: With dead ends: 661 [2020-09-24 23:39:49,667 INFO L226 Difference]: Without dead ends: 456 [2020-09-24 23:39:49,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:39:49,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-24 23:39:49,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 412. [2020-09-24 23:39:49,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-24 23:39:49,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 464 transitions. [2020-09-24 23:39:49,830 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 464 transitions. Word has length 142 [2020-09-24 23:39:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:49,831 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 464 transitions. [2020-09-24 23:39:49,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:39:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 464 transitions. [2020-09-24 23:39:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:39:49,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:49,838 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] [2020-09-24 23:39:49,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:39:49,839 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:49,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1549705395, now seen corresponding path program 1 times [2020-09-24 23:39:49,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:49,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81000559] [2020-09-24 23:39:49,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:49,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:54,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:54,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:39:54,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:39:54,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:39:54,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:54,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:39:54,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:39:54,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 23:39:54,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,238 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:55,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:55,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 23:39:55,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:39:55,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:55,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:39:55,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:55,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:55,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:55,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:55,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:55,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:55,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:55,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:55,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:55,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 23:39:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:39:55,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:39:55,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:39:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:55,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 23:39:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:55,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:39:55,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:55,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:55,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:39:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:55,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:55,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:55,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:55,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:55,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:55,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81000559] [2020-09-24 23:39:55,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:55,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:39:55,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287316688] [2020-09-24 23:39:55,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:39:55,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:55,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:39:55,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:39:55,728 INFO L87 Difference]: Start difference. First operand 412 states and 464 transitions. Second operand 5 states. [2020-09-24 23:39:56,207 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:39:58,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:58,088 INFO L93 Difference]: Finished difference Result 899 states and 1121 transitions. [2020-09-24 23:39:58,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:39:58,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:39:58,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:58,096 INFO L225 Difference]: With dead ends: 899 [2020-09-24 23:39:58,096 INFO L226 Difference]: Without dead ends: 597 [2020-09-24 23:39:58,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:39:58,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-09-24 23:39:58,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 542. [2020-09-24 23:39:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-24 23:39:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 636 transitions. [2020-09-24 23:39:58,209 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 636 transitions. Word has length 148 [2020-09-24 23:39:58,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:58,210 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 636 transitions. [2020-09-24 23:39:58,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:39:58,210 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 636 transitions. [2020-09-24 23:39:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 23:39:58,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:58,215 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] [2020-09-24 23:39:58,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:39:58,216 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:58,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:58,216 INFO L82 PathProgramCache]: Analyzing trace with hash -132091282, now seen corresponding path program 1 times [2020-09-24 23:39:58,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:58,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137911245] [2020-09-24 23:39:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:58,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:58,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:59,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:00,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 23:40:03,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:40:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 23:40:03,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:40:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:40:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-24 23:40:03,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,590 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:40:03,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:40:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:03,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:40:03,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:03,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-24 23:40:03,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:40:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:40:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:03,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:03,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:03,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:03,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:40:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:03,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:03,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:03,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:03,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:03,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:03,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:03,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:40:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:03,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:03,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:03,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:40:03,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:03,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:40:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:03,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:03,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:03,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:03,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:03,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:40:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:03,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:40:03,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:03,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:40:03,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:40:03,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:40:03,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:40:03,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:40:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:03,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:40:03,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:03,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:03,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:40:03,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 23:40:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:03,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:03,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:03,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:40:03,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:40:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:03,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:04,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:40:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:04,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:04,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:04,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:04,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:04,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:04,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:04,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:40:04,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137911245] [2020-09-24 23:40:04,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:40:04,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:40:04,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671659085] [2020-09-24 23:40:04,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:40:04,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:40:04,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:40:04,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:40:04,058 INFO L87 Difference]: Start difference. First operand 542 states and 636 transitions. Second operand 12 states. [2020-09-24 23:40:04,594 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:05,512 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:05,868 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:06,248 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:06,606 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:40:06,968 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:08,003 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:08,298 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:08,704 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:11,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:40:11,018 INFO L93 Difference]: Finished difference Result 1289 states and 1820 transitions. [2020-09-24 23:40:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 23:40:11,018 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 161 [2020-09-24 23:40:11,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:40:11,029 INFO L225 Difference]: With dead ends: 1289 [2020-09-24 23:40:11,029 INFO L226 Difference]: Without dead ends: 1024 [2020-09-24 23:40:11,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2020-09-24 23:40:11,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2020-09-24 23:40:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 719. [2020-09-24 23:40:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-24 23:40:11,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 892 transitions. [2020-09-24 23:40:11,155 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 892 transitions. Word has length 161 [2020-09-24 23:40:11,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:40:11,155 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 892 transitions. [2020-09-24 23:40:11,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:40:11,156 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 892 transitions. [2020-09-24 23:40:11,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 23:40:11,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:40:11,160 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 23:40:11,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:40:11,161 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:40:11,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:40:11,161 INFO L82 PathProgramCache]: Analyzing trace with hash -2009748231, now seen corresponding path program 1 times [2020-09-24 23:40:11,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:40:11,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878020904] [2020-09-24 23:40:11,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:40:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:11,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:11,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:11,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:12,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:16,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:16,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 23:40:16,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:40:16,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 23:40:16,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:40:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:40:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 23:40:16,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:16,551 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:40:16,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:40:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:16,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:16,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:16,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:40:16,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:16,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-24 23:40:16,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:40:16,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:16,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:40:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:16,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:16,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:16,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:16,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:16,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:16,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:16,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:16,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:40:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:16,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:16,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:16,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:16,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:16,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:16,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:16,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:40:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:16,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:16,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:16,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:16,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:40:16,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:16,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:40:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:16,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:16,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:16,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:16,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:16,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:16,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:16,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:16,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:16,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:16,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:16,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 23:40:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:16,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 23:40:17,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:40:17,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-24 23:40:17,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:40:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:40:17,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:40:17,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 23:40:17,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:40:17,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:40:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 23:40:17,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:40:17,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:40:17,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:40:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:40:17,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:17,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:40:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:40:17,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:17,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 23:40:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:40:17,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:40:17,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:17,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:17,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-24 23:40:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:40:17,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:40:17,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:40:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 23:40:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:17,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:17,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 23:40:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:17,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:17,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,555 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:40:17,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878020904] [2020-09-24 23:40:17,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:40:17,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:40:17,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733437652] [2020-09-24 23:40:17,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:40:17,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:40:17,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:40:17,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:40:17,559 INFO L87 Difference]: Start difference. First operand 719 states and 892 transitions. Second operand 7 states. [2020-09-24 23:40:18,015 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:40:19,202 INFO L93 Difference]: Finished difference Result 1466 states and 1976 transitions. [2020-09-24 23:40:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:40:19,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 210 [2020-09-24 23:40:19,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:40:19,211 INFO L225 Difference]: With dead ends: 1466 [2020-09-24 23:40:19,211 INFO L226 Difference]: Without dead ends: 857 [2020-09-24 23:40:19,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:40:19,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-09-24 23:40:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 719. [2020-09-24 23:40:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-24 23:40:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 887 transitions. [2020-09-24 23:40:19,318 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 887 transitions. Word has length 210 [2020-09-24 23:40:19,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:40:19,319 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 887 transitions. [2020-09-24 23:40:19,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:40:19,319 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 887 transitions. [2020-09-24 23:40:19,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-09-24 23:40:19,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:40:19,327 INFO L422 BasicCegarLoop]: trace histogram [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 23:40:19,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:40:19,327 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:40:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:40:19,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1043771422, now seen corresponding path program 1 times [2020-09-24 23:40:19,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:40:19,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794734106] [2020-09-24 23:40:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:40:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:19,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:19,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:19,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking...