/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:11:18,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:11:18,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:11:18,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:11:18,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:11:18,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:11:18,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:11:18,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:11:18,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:11:18,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:11:18,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:11:18,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:11:18,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:11:18,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:11:18,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:11:18,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:11:18,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:11:18,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:11:18,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:11:18,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:11:18,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:11:18,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:11:18,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:11:18,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:11:18,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:11:18,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:11:18,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:11:18,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:11:18,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:11:18,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:11:18,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:11:18,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:11:18,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:11:18,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:11:18,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:11:18,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:11:18,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:11:18,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:11:18,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:11:18,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:11:18,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:11:18,203 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 [2020-08-22 06:11:18,225 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:11:18,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:11:18,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:11:18,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:11:18,227 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:11:18,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:11:18,227 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:11:18,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:11:18,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:11:18,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:11:18,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:11:18,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:11:18,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:11:18,228 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:11:18,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:11:18,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:11:18,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:11:18,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:11:18,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:11:18,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:11:18,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:11:18,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:11:18,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:11:18,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:11:18,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:11:18,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:11:18,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:11:18,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:11:18,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:11:18,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:11:18,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:11:18,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:11:18,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:11:18,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:11:18,598 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:11:18,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product44.cil.c [2020-08-22 06:11:18,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99e6e7b9e/c11d686e2d1b4ca784366c192fefc804/FLAG0c30070b1 [2020-08-22 06:11:19,199 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:11:19,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product44.cil.c [2020-08-22 06:11:19,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99e6e7b9e/c11d686e2d1b4ca784366c192fefc804/FLAG0c30070b1 [2020-08-22 06:11:19,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99e6e7b9e/c11d686e2d1b4ca784366c192fefc804 [2020-08-22 06:11:19,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:11:19,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:11:19,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:11:19,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:11:19,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:11:19,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5395a65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19, skipping insertion in model container [2020-08-22 06:11:19,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:11:19,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:11:19,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:11:19,910 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:11:20,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:11:20,141 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:11:20,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20 WrapperNode [2020-08-22 06:11:20,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:11:20,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:11:20,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:11:20,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:11:20,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:11:20,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:11:20,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:11:20,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:11:20,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (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 [2020-08-22 06:11:20,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:11:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:11:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 06:11:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 06:11:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 06:11:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 06:11:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 06:11:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 06:11:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 06:11:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 06:11:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 06:11:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 06:11:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 06:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 06:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 06:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 06:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 06:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 06:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 06:11:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 06:11:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 06:11:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 06:11:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 06:11:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 06:11:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 06:11:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 06:11:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 06:11:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 06:11:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 06:11:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 06:11:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 06:11:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 06:11:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 06:11:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 06:11:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 06:11:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 06:11:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 06:11:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:11:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 06:11:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 06:11:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 06:11:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 06:11:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:11:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:11:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 06:11:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 06:11:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 06:11:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 06:11:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 06:11:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 06:11:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 06:11:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 06:11:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 06:11:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 06:11:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 06:11:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 06:11:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 06:11:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 06:11:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 06:11:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 06:11:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 06:11:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 06:11:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 06:11:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 06:11:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 06:11:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 06:11:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 06:11:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 06:11:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 06:11:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 06:11:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 06:11:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 06:11:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 06:11:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 06:11:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 06:11:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 06:11:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 06:11:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 06:11:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 06:11:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 06:11:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 06:11:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 06:11:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 06:11:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 06:11:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 06:11:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 06:11:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 06:11:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 06:11:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 06:11:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 06:11:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 06:11:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 06:11:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 06:11:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:11:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 06:11:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:11:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 06:11:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:11:21,472 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:11:21,472 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 06:11:21,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:11:21 BoogieIcfgContainer [2020-08-22 06:11:21,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:11:21,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:11:21,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:11:21,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:11:21,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:11:19" (1/3) ... [2020-08-22 06:11:21,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a896f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:11:21, skipping insertion in model container [2020-08-22 06:11:21,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20" (2/3) ... [2020-08-22 06:11:21,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a896f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:11:21, skipping insertion in model container [2020-08-22 06:11:21,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:11:21" (3/3) ... [2020-08-22 06:11:21,486 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product44.cil.c [2020-08-22 06:11:21,497 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:11:21,505 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:11:21,520 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:11:21,546 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:11:21,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:11:21,546 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:11:21,546 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:11:21,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:11:21,547 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:11:21,547 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:11:21,547 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:11:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-08-22 06:11:21,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 06:11:21,582 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:21,583 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 06:11:21,583 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:21,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:21,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1834170296, now seen corresponding path program 1 times [2020-08-22 06:11:21,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:21,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132530264] [2020-08-22 06:11:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,270 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:22,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 06:11:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 06:11:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:22,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132530264] [2020-08-22 06:11:22,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:22,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 06:11:22,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231134110] [2020-08-22 06:11:22,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 06:11:22,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:22,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 06:11:22,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:11:22,411 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 4 states. [2020-08-22 06:11:23,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:23,511 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2020-08-22 06:11:23,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 06:11:23,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 06:11:23,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:23,529 INFO L225 Difference]: With dead ends: 318 [2020-08-22 06:11:23,530 INFO L226 Difference]: Without dead ends: 176 [2020-08-22 06:11:23,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:11:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-08-22 06:11:23,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 143. [2020-08-22 06:11:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-08-22 06:11:23,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 165 transitions. [2020-08-22 06:11:23,635 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 165 transitions. Word has length 59 [2020-08-22 06:11:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:23,636 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 165 transitions. [2020-08-22 06:11:23,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 06:11:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 165 transitions. [2020-08-22 06:11:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 06:11:23,640 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:23,640 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 06:11:23,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:11:23,641 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:23,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1514103119, now seen corresponding path program 1 times [2020-08-22 06:11:23,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:23,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519132149] [2020-08-22 06:11:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,987 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:23,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:11:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 06:11:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 06:11:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:24,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519132149] [2020-08-22 06:11:24,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:24,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 06:11:24,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509216640] [2020-08-22 06:11:24,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 06:11:24,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:24,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 06:11:24,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 06:11:24,063 INFO L87 Difference]: Start difference. First operand 143 states and 165 transitions. Second operand 5 states. [2020-08-22 06:11:24,483 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:25,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:25,390 INFO L93 Difference]: Finished difference Result 250 states and 301 transitions. [2020-08-22 06:11:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 06:11:25,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-22 06:11:25,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:25,394 INFO L225 Difference]: With dead ends: 250 [2020-08-22 06:11:25,394 INFO L226 Difference]: Without dead ends: 166 [2020-08-22 06:11:25,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:11:25,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-08-22 06:11:25,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 134. [2020-08-22 06:11:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-08-22 06:11:25,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2020-08-22 06:11:25,465 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 60 [2020-08-22 06:11:25,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:25,466 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2020-08-22 06:11:25,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 06:11:25,466 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2020-08-22 06:11:25,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-22 06:11:25,468 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:25,469 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 06:11:25,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:11:25,469 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:25,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:25,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1793464780, now seen corresponding path program 1 times [2020-08-22 06:11:25,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:25,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076475175] [2020-08-22 06:11:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,788 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:25,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:11:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 06:11:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 06:11:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:25,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076475175] [2020-08-22 06:11:25,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:25,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:25,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933526973] [2020-08-22 06:11:25,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:25,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:25,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:25,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:25,909 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 9 states. [2020-08-22 06:11:26,266 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:26,592 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:26,825 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:27,056 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:27,960 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:29,647 INFO L93 Difference]: Finished difference Result 451 states and 548 transitions. [2020-08-22 06:11:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 06:11:29,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-22 06:11:29,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:29,653 INFO L225 Difference]: With dead ends: 451 [2020-08-22 06:11:29,653 INFO L226 Difference]: Without dead ends: 345 [2020-08-22 06:11:29,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:11:29,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-08-22 06:11:29,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 272. [2020-08-22 06:11:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-08-22 06:11:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 322 transitions. [2020-08-22 06:11:29,726 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 322 transitions. Word has length 65 [2020-08-22 06:11:29,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:29,726 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 322 transitions. [2020-08-22 06:11:29,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 322 transitions. [2020-08-22 06:11:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-22 06:11:29,729 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:29,729 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 06:11:29,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:11:29,730 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:29,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:29,730 INFO L82 PathProgramCache]: Analyzing trace with hash -10520395, now seen corresponding path program 1 times [2020-08-22 06:11:29,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:29,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295873765] [2020-08-22 06:11:29,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,011 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:30,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:11:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:11:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-22 06:11:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 06:11:30,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295873765] [2020-08-22 06:11:30,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:30,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:30,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902796288] [2020-08-22 06:11:30,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:30,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:30,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:30,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:30,146 INFO L87 Difference]: Start difference. First operand 272 states and 322 transitions. Second operand 9 states. [2020-08-22 06:11:30,540 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:31,304 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:32,209 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:32,472 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:32,771 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:33,062 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:33,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:33,719 INFO L93 Difference]: Finished difference Result 695 states and 884 transitions. [2020-08-22 06:11:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 06:11:33,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-22 06:11:33,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:33,725 INFO L225 Difference]: With dead ends: 695 [2020-08-22 06:11:33,725 INFO L226 Difference]: Without dead ends: 451 [2020-08-22 06:11:33,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 06:11:33,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-08-22 06:11:33,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 387. [2020-08-22 06:11:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-08-22 06:11:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 459 transitions. [2020-08-22 06:11:33,823 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 459 transitions. Word has length 70 [2020-08-22 06:11:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:33,824 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 459 transitions. [2020-08-22 06:11:33,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:33,824 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 459 transitions. [2020-08-22 06:11:33,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-22 06:11:33,827 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:33,828 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 06:11:33,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:11:33,828 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:33,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:33,829 INFO L82 PathProgramCache]: Analyzing trace with hash -762155168, now seen corresponding path program 1 times [2020-08-22 06:11:33,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:33,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859876654] [2020-08-22 06:11:33,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,115 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:34,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:11:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:11:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 06:11:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 06:11:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:34,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859876654] [2020-08-22 06:11:34,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:34,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:34,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193515133] [2020-08-22 06:11:34,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:34,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:34,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:34,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:34,307 INFO L87 Difference]: Start difference. First operand 387 states and 459 transitions. Second operand 9 states. [2020-08-22 06:11:34,655 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:35,710 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:35,976 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 06:11:36,247 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:36,534 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:37,889 INFO L93 Difference]: Finished difference Result 1214 states and 1597 transitions. [2020-08-22 06:11:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 06:11:37,894 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-08-22 06:11:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:37,900 INFO L225 Difference]: With dead ends: 1214 [2020-08-22 06:11:37,901 INFO L226 Difference]: Without dead ends: 855 [2020-08-22 06:11:37,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:11:37,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-08-22 06:11:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 733. [2020-08-22 06:11:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-08-22 06:11:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 874 transitions. [2020-08-22 06:11:38,034 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 874 transitions. Word has length 103 [2020-08-22 06:11:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:38,035 INFO L479 AbstractCegarLoop]: Abstraction has 733 states and 874 transitions. [2020-08-22 06:11:38,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 874 transitions. [2020-08-22 06:11:38,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-22 06:11:38,038 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:38,039 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 06:11:38,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:11:38,039 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:38,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:38,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1731736191, now seen corresponding path program 1 times [2020-08-22 06:11:38,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:38,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865459767] [2020-08-22 06:11:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,368 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:38,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:11:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:11:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 06:11:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 06:11:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:38,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865459767] [2020-08-22 06:11:38,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:38,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:38,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672356908] [2020-08-22 06:11:38,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:38,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:38,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:38,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:38,532 INFO L87 Difference]: Start difference. First operand 733 states and 874 transitions. Second operand 9 states. [2020-08-22 06:11:39,504 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:39,766 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:40,060 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:40,306 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:41,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:41,070 INFO L93 Difference]: Finished difference Result 1573 states and 2006 transitions. [2020-08-22 06:11:41,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 06:11:41,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-08-22 06:11:41,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:41,079 INFO L225 Difference]: With dead ends: 1573 [2020-08-22 06:11:41,080 INFO L226 Difference]: Without dead ends: 868 [2020-08-22 06:11:41,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 06:11:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-08-22 06:11:41,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 753. [2020-08-22 06:11:41,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-08-22 06:11:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 894 transitions. [2020-08-22 06:11:41,198 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 894 transitions. Word has length 103 [2020-08-22 06:11:41,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:41,199 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 894 transitions. [2020-08-22 06:11:41,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:41,199 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 894 transitions. [2020-08-22 06:11:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-22 06:11:41,202 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:41,202 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 06:11:41,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 06:11:41,203 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:41,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:41,203 INFO L82 PathProgramCache]: Analyzing trace with hash 513843263, now seen corresponding path program 1 times [2020-08-22 06:11:41,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:41,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790632860] [2020-08-22 06:11:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,529 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:41,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:11:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:11:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 06:11:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 06:11:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:41,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790632860] [2020-08-22 06:11:41,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:41,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 06:11:41,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339809643] [2020-08-22 06:11:41,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 06:11:41,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:41,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 06:11:41,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 06:11:41,700 INFO L87 Difference]: Start difference. First operand 753 states and 894 transitions. Second operand 11 states. [2020-08-22 06:11:42,247 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:42,473 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:42,695 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:43,461 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:43,711 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:43,949 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:44,766 INFO L93 Difference]: Finished difference Result 1392 states and 1738 transitions. [2020-08-22 06:11:44,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 06:11:44,767 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-08-22 06:11:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:44,773 INFO L225 Difference]: With dead ends: 1392 [2020-08-22 06:11:44,773 INFO L226 Difference]: Without dead ends: 667 [2020-08-22 06:11:44,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:11:44,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-08-22 06:11:44,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 590. [2020-08-22 06:11:44,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-08-22 06:11:44,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 686 transitions. [2020-08-22 06:11:44,895 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 686 transitions. Word has length 103 [2020-08-22 06:11:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:44,896 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 686 transitions. [2020-08-22 06:11:44,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 06:11:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 686 transitions. [2020-08-22 06:11:44,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 06:11:44,903 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:44,903 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 06:11:44,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 06:11:44,904 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:44,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:44,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1595809660, now seen corresponding path program 1 times [2020-08-22 06:11:44,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:44,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224893865] [2020-08-22 06:11:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,340 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:45,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 06:11:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-22 06:11:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 06:11:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 06:11:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:45,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224893865] [2020-08-22 06:11:45,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:45,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 06:11:45,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958983735] [2020-08-22 06:11:45,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 06:11:45,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:45,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 06:11:45,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 06:11:45,539 INFO L87 Difference]: Start difference. First operand 590 states and 686 transitions. Second operand 12 states. [2020-08-22 06:11:45,892 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:46,526 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:47,244 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:47,588 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:47,826 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:48,097 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:48,370 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:49,846 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:50,112 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:50,731 INFO L93 Difference]: Finished difference Result 1731 states and 2173 transitions. [2020-08-22 06:11:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 06:11:50,734 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2020-08-22 06:11:50,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:50,743 INFO L225 Difference]: With dead ends: 1731 [2020-08-22 06:11:50,743 INFO L226 Difference]: Without dead ends: 1345 [2020-08-22 06:11:50,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 06:11:50,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2020-08-22 06:11:50,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1225. [2020-08-22 06:11:50,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1225 states. [2020-08-22 06:11:50,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1427 transitions. [2020-08-22 06:11:50,944 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1427 transitions. Word has length 107 [2020-08-22 06:11:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:50,944 INFO L479 AbstractCegarLoop]: Abstraction has 1225 states and 1427 transitions. [2020-08-22 06:11:50,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 06:11:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1427 transitions. [2020-08-22 06:11:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-08-22 06:11:50,947 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:50,948 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:50,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 06:11:50,948 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:50,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:50,949 INFO L82 PathProgramCache]: Analyzing trace with hash 439174861, now seen corresponding path program 1 times [2020-08-22 06:11:50,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:50,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779130793] [2020-08-22 06:11:50,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,316 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:51,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 06:11:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:11:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:11:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-22 06:11:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 06:11:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-22 06:11:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 06:11:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 06:11:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,585 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 06:11:51,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779130793] [2020-08-22 06:11:51,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:11:51,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 06:11:51,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398867298] [2020-08-22 06:11:51,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 06:11:51,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:51,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 06:11:51,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:11:51,588 INFO L87 Difference]: Start difference. First operand 1225 states and 1427 transitions. Second operand 16 states. [2020-08-22 06:11:52,109 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:52,455 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 06:11:52,734 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 06:11:52,993 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 06:11:53,732 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:54,027 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:54,375 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:54,655 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:55,933 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:56,431 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:56,701 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:57,000 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:57,459 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:58,013 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:58,239 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:58,509 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:58,764 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:59,301 INFO L93 Difference]: Finished difference Result 2512 states and 3022 transitions. [2020-08-22 06:11:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-08-22 06:11:59,302 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 151 [2020-08-22 06:11:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:59,311 INFO L225 Difference]: With dead ends: 2512 [2020-08-22 06:11:59,311 INFO L226 Difference]: Without dead ends: 1485 [2020-08-22 06:11:59,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=548, Invalid=2002, Unknown=0, NotChecked=0, Total=2550 [2020-08-22 06:11:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2020-08-22 06:11:59,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1337. [2020-08-22 06:11:59,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-08-22 06:11:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1535 transitions. [2020-08-22 06:11:59,596 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1535 transitions. Word has length 151 [2020-08-22 06:11:59,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:59,596 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1535 transitions. [2020-08-22 06:11:59,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 06:11:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1535 transitions. [2020-08-22 06:11:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-08-22 06:11:59,605 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:59,606 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:59,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 06:11:59,607 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:59,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:59,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1237087136, now seen corresponding path program 1 times [2020-08-22 06:11:59,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:59,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377182062] [2020-08-22 06:11:59,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,001 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:12:00,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:12:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:12:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:12:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 06:12:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:12:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-22 06:12:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 06:12:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-22 06:12:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-08-22 06:12:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 06:12:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-08-22 06:12:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-08-22 06:12:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-08-22 06:12:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 111 proven. 48 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-08-22 06:12:00,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377182062] [2020-08-22 06:12:00,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:12:00,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 06:12:00,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408010115] [2020-08-22 06:12:00,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 06:12:00,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:12:00,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 06:12:00,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:12:00,717 INFO L87 Difference]: Start difference. First operand 1337 states and 1535 transitions. Second operand 16 states. [2020-08-22 06:12:02,188 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:12:02,457 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:02,727 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:02,967 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:04,090 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:12:05,697 INFO L93 Difference]: Finished difference Result 3772 states and 4541 transitions. [2020-08-22 06:12:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-22 06:12:05,698 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 306 [2020-08-22 06:12:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:12:05,712 INFO L225 Difference]: With dead ends: 3772 [2020-08-22 06:12:05,712 INFO L226 Difference]: Without dead ends: 2204 [2020-08-22 06:12:05,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 112 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2020-08-22 06:12:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2020-08-22 06:12:06,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1823. [2020-08-22 06:12:06,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1823 states. [2020-08-22 06:12:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2126 transitions. [2020-08-22 06:12:06,084 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2126 transitions. Word has length 306 [2020-08-22 06:12:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:12:06,086 INFO L479 AbstractCegarLoop]: Abstraction has 1823 states and 2126 transitions. [2020-08-22 06:12:06,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 06:12:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2126 transitions. [2020-08-22 06:12:06,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-08-22 06:12:06,097 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:12:06,097 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:12:06,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 06:12:06,098 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:12:06,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:12:06,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1658296613, now seen corresponding path program 1 times [2020-08-22 06:12:06,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:12:06,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246848234] [2020-08-22 06:12:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:12:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,409 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:12:06,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:12:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:12:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:12:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 06:12:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:12:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-22 06:12:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:12:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-08-22 06:12:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-08-22 06:12:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-08-22 06:12:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-08-22 06:12:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 06:12:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-08-22 06:12:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-08-22 06:12:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 118 proven. 44 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-08-22 06:12:06,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246848234] [2020-08-22 06:12:06,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:12:06,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 06:12:06,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265334311] [2020-08-22 06:12:06,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 06:12:06,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:12:06,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 06:12:06,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-08-22 06:12:06,981 INFO L87 Difference]: Start difference. First operand 1823 states and 2126 transitions. Second operand 17 states. [2020-08-22 06:12:07,536 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:07,888 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:08,153 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:08,392 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:09,119 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:10,162 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:10,442 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:10,985 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:11,795 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:12,416 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:12,692 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:13,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:12:13,680 INFO L93 Difference]: Finished difference Result 3474 states and 4131 transitions. [2020-08-22 06:12:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 06:12:13,681 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 312 [2020-08-22 06:12:13,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:12:13,693 INFO L225 Difference]: With dead ends: 3474 [2020-08-22 06:12:13,693 INFO L226 Difference]: Without dead ends: 1872 [2020-08-22 06:12:13,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2020-08-22 06:12:13,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2020-08-22 06:12:14,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1772. [2020-08-22 06:12:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1772 states. [2020-08-22 06:12:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2039 transitions. [2020-08-22 06:12:14,030 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2039 transitions. Word has length 312 [2020-08-22 06:12:14,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:12:14,031 INFO L479 AbstractCegarLoop]: Abstraction has 1772 states and 2039 transitions. [2020-08-22 06:12:14,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 06:12:14,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2039 transitions. [2020-08-22 06:12:14,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-08-22 06:12:14,041 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:12:14,042 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:12:14,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 06:12:14,042 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:12:14,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:12:14,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1546174684, now seen corresponding path program 1 times [2020-08-22 06:12:14,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:12:14,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396371607] [2020-08-22 06:12:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:12:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,384 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:12:14,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:12:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:12:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:12:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 06:12:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:12:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-22 06:12:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:12:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-08-22 06:12:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-08-22 06:12:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-08-22 06:12:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-08-22 06:12:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-08-22 06:12:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2020-08-22 06:12:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2020-08-22 06:12:14,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396371607] [2020-08-22 06:12:14,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:12:14,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 06:12:14,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635775151] [2020-08-22 06:12:14,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:12:14,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:12:14,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:12:14,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:12:14,634 INFO L87 Difference]: Start difference. First operand 1772 states and 2039 transitions. Second operand 9 states. [2020-08-22 06:12:15,519 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 189