/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:06:50,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:06:50,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:06:51,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 22:06:51,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 22:06:51,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 22:06:51,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 22:06:51,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 22:06:51,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 22:06:51,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 22:06:51,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 22:06:51,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 22:06:51,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:06:51,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:06:51,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:06:51,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:06:51,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:06:51,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:06:51,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:06:51,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:06:51,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:06:51,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:06:51,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:06:51,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:06:51,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:06:51,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:06:51,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:06:51,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:06:51,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:06:51,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:06:51,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:06:51,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:06:51,088 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:06:51,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:06:51,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:06:51,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:06:51,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:06:51,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:06:51,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:06:51,090 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:06:51,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:06:51,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:06:51,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:06:51,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:06:51,091 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:06:51,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:06:51,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:06:51,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:06:51,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:06:51,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:06:51,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:06:51,093 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:06:51,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:06:51,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:06:51,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:06:51,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:06:51,509 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:06:51,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2021-02-23 22:06:51,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bcc29a4f/c5523d633221412ea9e17a70ec6fe8aa/FLAG5f4ad65df [2021-02-23 22:06:52,281 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:06:52,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2021-02-23 22:06:52,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bcc29a4f/c5523d633221412ea9e17a70ec6fe8aa/FLAG5f4ad65df [2021-02-23 22:06:52,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bcc29a4f/c5523d633221412ea9e17a70ec6fe8aa [2021-02-23 22:06:52,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:06:52,538 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:06:52,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:06:52,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:06:52,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:06:52,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:06:52" (1/1) ... [2021-02-23 22:06:52,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ad7494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:52, skipping insertion in model container [2021-02-23 22:06:52,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:06:52" (1/1) ... [2021-02-23 22:06:52,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:06:52,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:06:52,980 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c[15762,15775] [2021-02-23 22:06:52,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:06:53,008 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:06:53,112 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c[15762,15775] [2021-02-23 22:06:53,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:06:53,162 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:06:53,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53 WrapperNode [2021-02-23 22:06:53,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:06:53,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:06:53,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:06:53,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:06:53,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (1/1) ... [2021-02-23 22:06:53,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (1/1) ... [2021-02-23 22:06:53,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (1/1) ... [2021-02-23 22:06:53,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (1/1) ... [2021-02-23 22:06:53,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (1/1) ... [2021-02-23 22:06:53,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (1/1) ... [2021-02-23 22:06:53,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (1/1) ... [2021-02-23 22:06:53,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:06:53,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:06:53,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:06:53,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:06:53,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-02-23 22:06:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:06:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:06:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 22:06:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:06:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 22:06:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-23 22:06:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 22:06:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 22:06:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 22:06:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 22:06:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 22:06:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 22:06:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 22:06:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 22:06:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 22:06:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 22:06:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 22:06:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 22:06:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 22:06:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 22:06:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:06:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 22:06:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 22:06:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 22:06:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 22:06:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 22:06:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 22:06:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 22:06:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 22:06:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 22:06:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 22:06:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 22:06:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 22:06:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 22:06:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 22:06:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 22:06:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 22:06:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 22:06:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 22:06:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:06:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:06:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:06:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:06:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:06:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 22:06:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 22:06:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 22:06:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 22:06:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 22:06:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 22:06:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 22:06:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 22:06:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 22:06:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 22:06:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-23 22:06:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 22:06:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 22:06:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 22:06:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 22:06:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 22:06:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 22:06:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 22:06:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 22:06:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 22:06:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 22:06:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 22:06:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 22:06:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 22:06:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 22:06:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 22:06:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 22:06:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 22:06:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:06:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 22:06:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 22:06:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 22:06:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 22:06:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 22:06:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:06:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 22:06:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 22:06:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:06:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 22:06:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 22:06:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:06:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 22:06:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 22:06:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 22:06:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 22:06:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:06:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:06:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:06:54,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:06:54,694 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 22:06:54,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:06:54 BoogieIcfgContainer [2021-02-23 22:06:54,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:06:54,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:06:54,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:06:54,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:06:54,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:06:52" (1/3) ... [2021-02-23 22:06:54,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49249fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:06:54, skipping insertion in model container [2021-02-23 22:06:54,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:06:53" (2/3) ... [2021-02-23 22:06:54,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49249fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:06:54, skipping insertion in model container [2021-02-23 22:06:54,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:06:54" (3/3) ... [2021-02-23 22:06:54,708 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2021-02-23 22:06:54,715 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:06:54,721 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:06:54,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:06:54,773 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:06:54,773 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:06:54,773 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:06:54,773 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:06:54,774 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:06:54,774 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:06:54,775 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:06:54,775 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:06:54,809 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2021-02-23 22:06:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-23 22:06:54,840 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:06:54,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:06:54,842 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:06:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:06:54,851 INFO L82 PathProgramCache]: Analyzing trace with hash 229297265, now seen corresponding path program 1 times [2021-02-23 22:06:54,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:06:54,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858248875] [2021-02-23 22:06:54,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:06:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:55,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,643 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:06:55,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:06:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:55,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:06:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:55,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:06:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:55,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:06:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:55,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:06:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:55,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 22:06:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:55,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 22:06:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:55,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:55,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:06:55,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858248875] [2021-02-23 22:06:55,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:06:55,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 22:06:55,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952272167] [2021-02-23 22:06:55,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 22:06:55,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:06:55,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 22:06:55,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:06:55,847 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2021-02-23 22:06:57,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:06:57,384 INFO L93 Difference]: Finished difference Result 445 states and 530 transitions. [2021-02-23 22:06:57,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 22:06:57,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-23 22:06:57,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:06:57,403 INFO L225 Difference]: With dead ends: 445 [2021-02-23 22:06:57,403 INFO L226 Difference]: Without dead ends: 282 [2021-02-23 22:06:57,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:06:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-02-23 22:06:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 241. [2021-02-23 22:06:57,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2021-02-23 22:06:57,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 260 transitions. [2021-02-23 22:06:57,597 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 260 transitions. Word has length 147 [2021-02-23 22:06:57,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:06:57,598 INFO L480 AbstractCegarLoop]: Abstraction has 241 states and 260 transitions. [2021-02-23 22:06:57,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 22:06:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 260 transitions. [2021-02-23 22:06:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-23 22:06:57,602 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:06:57,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:06:57,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:06:57,602 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:06:57,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:06:57,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2102136118, now seen corresponding path program 1 times [2021-02-23 22:06:57,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:06:57,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669302790] [2021-02-23 22:06:57,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:06:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:57,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:57,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:57,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:57,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:06:57,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:57,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:58,037 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:06:58,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:06:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:58,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:58,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:58,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:06:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:58,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:58,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:58,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:06:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:58,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:58,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:58,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:06:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:58,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:58,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:06:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:58,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:58,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:58,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 22:06:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:58,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:58,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:58,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:06:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:06:58,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:06:58,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:06:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:06:58,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669302790] [2021-02-23 22:06:58,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:06:58,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:06:58,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350272738] [2021-02-23 22:06:58,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:06:58,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:06:58,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:06:58,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:06:58,161 INFO L87 Difference]: Start difference. First operand 241 states and 260 transitions. Second operand 4 states. [2021-02-23 22:06:58,965 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:06:59,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:06:59,896 INFO L93 Difference]: Finished difference Result 352 states and 394 transitions. [2021-02-23 22:06:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 22:06:59,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-23 22:06:59,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:06:59,902 INFO L225 Difference]: With dead ends: 352 [2021-02-23 22:06:59,902 INFO L226 Difference]: Without dead ends: 265 [2021-02-23 22:06:59,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 22:06:59,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-02-23 22:07:00,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2021-02-23 22:07:00,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2021-02-23 22:07:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 247 transitions. [2021-02-23 22:07:00,012 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 247 transitions. Word has length 148 [2021-02-23 22:07:00,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:07:00,014 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 247 transitions. [2021-02-23 22:07:00,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:07:00,014 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 247 transitions. [2021-02-23 22:07:00,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-23 22:07:00,020 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:07:00,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:07:00,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:07:00,021 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:07:00,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:07:00,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1484901068, now seen corresponding path program 1 times [2021-02-23 22:07:00,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:07:00,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881712387] [2021-02-23 22:07:00,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:07:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:00,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:00,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:00,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:00,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:00,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:00,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:00,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:00,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:00,565 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:07:00,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:07:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:00,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:00,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:07:00,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:07:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:00,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:00,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:07:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:00,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:00,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:07:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:00,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:00,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:07:00,681 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 22:07:00,682 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 22:07:00,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:07:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:00,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:00,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 22:07:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:00,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:00,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 22:07:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:00,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:00,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:07:00,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881712387] [2021-02-23 22:07:00,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:07:00,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:07:00,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298232842] [2021-02-23 22:07:00,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:07:00,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:07:00,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:07:00,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:07:00,774 INFO L87 Difference]: Start difference. First operand 231 states and 247 transitions. Second operand 9 states. [2021-02-23 22:07:01,577 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:02,007 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:07:02,373 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 22:07:02,733 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:03,118 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:03,497 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:04,689 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:07:06,651 INFO L93 Difference]: Finished difference Result 590 states and 676 transitions. [2021-02-23 22:07:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 22:07:06,652 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-23 22:07:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:07:06,656 INFO L225 Difference]: With dead ends: 590 [2021-02-23 22:07:06,657 INFO L226 Difference]: Without dead ends: 474 [2021-02-23 22:07:06,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-23 22:07:06,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-02-23 22:07:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 399. [2021-02-23 22:07:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2021-02-23 22:07:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 441 transitions. [2021-02-23 22:07:06,893 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 441 transitions. Word has length 157 [2021-02-23 22:07:06,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:07:06,895 INFO L480 AbstractCegarLoop]: Abstraction has 399 states and 441 transitions. [2021-02-23 22:07:06,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:07:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 441 transitions. [2021-02-23 22:07:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-23 22:07:06,899 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:07:06,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:07:06,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:07:06,900 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:07:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:07:06,900 INFO L82 PathProgramCache]: Analyzing trace with hash -142752541, now seen corresponding path program 1 times [2021-02-23 22:07:06,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:07:06,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108328136] [2021-02-23 22:07:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:07:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:07,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:07,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:07,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:07,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:07,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,414 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:07:07,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:07:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:07,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:07:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:07:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:07:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:07:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-23 22:07:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:07,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:07,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-23 22:07:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 22:07:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:07,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:07,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:07,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:07:07,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108328136] [2021-02-23 22:07:07,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:07:07,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 22:07:07,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669458130] [2021-02-23 22:07:07,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 22:07:07,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:07:07,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 22:07:07,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-23 22:07:07,626 INFO L87 Difference]: Start difference. First operand 399 states and 441 transitions. Second operand 6 states. [2021-02-23 22:07:08,282 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:10,125 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:07:10,795 INFO L93 Difference]: Finished difference Result 989 states and 1162 transitions. [2021-02-23 22:07:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 22:07:10,796 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2021-02-23 22:07:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:07:10,808 INFO L225 Difference]: With dead ends: 989 [2021-02-23 22:07:10,808 INFO L226 Difference]: Without dead ends: 705 [2021-02-23 22:07:10,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:07:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-02-23 22:07:11,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 589. [2021-02-23 22:07:11,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2021-02-23 22:07:11,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 651 transitions. [2021-02-23 22:07:11,041 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 651 transitions. Word has length 165 [2021-02-23 22:07:11,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:07:11,042 INFO L480 AbstractCegarLoop]: Abstraction has 589 states and 651 transitions. [2021-02-23 22:07:11,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 22:07:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 651 transitions. [2021-02-23 22:07:11,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-23 22:07:11,045 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:07:11,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:07:11,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 22:07:11,045 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:07:11,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:07:11,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1695129984, now seen corresponding path program 1 times [2021-02-23 22:07:11,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:07:11,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383901622] [2021-02-23 22:07:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:07:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:11,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:11,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:11,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:11,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:11,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:11,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:11,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:11,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:11,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:11,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,522 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:07:11,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:07:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:07:11,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:07:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:07:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:07:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:07:11,602 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 22:07:11,603 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 22:07:11,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:07:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:07:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-23 22:07:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:11,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:11,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-23 22:07:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:11,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:11,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:07:11,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383901622] [2021-02-23 22:07:11,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:07:11,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-23 22:07:11,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753573617] [2021-02-23 22:07:11,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 22:07:11,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:07:11,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 22:07:11,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-23 22:07:11,729 INFO L87 Difference]: Start difference. First operand 589 states and 651 transitions. Second operand 14 states. [2021-02-23 22:07:12,329 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:12,765 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:07:13,147 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 22:07:13,531 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:13,893 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:14,274 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:15,140 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:16,090 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:16,492 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:16,966 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:17,417 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:07:17,835 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 22:07:18,224 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 22:07:18,605 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:19,037 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:19,529 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 22:07:19,943 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:21,282 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:21,659 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:22,186 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:23,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:07:23,744 INFO L93 Difference]: Finished difference Result 1915 states and 2304 transitions. [2021-02-23 22:07:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-23 22:07:23,744 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-23 22:07:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:07:23,755 INFO L225 Difference]: With dead ends: 1915 [2021-02-23 22:07:23,755 INFO L226 Difference]: Without dead ends: 1441 [2021-02-23 22:07:23,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 22:07:23,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2021-02-23 22:07:24,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1322. [2021-02-23 22:07:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1322 states. [2021-02-23 22:07:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1498 transitions. [2021-02-23 22:07:24,354 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1498 transitions. Word has length 166 [2021-02-23 22:07:24,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:07:24,355 INFO L480 AbstractCegarLoop]: Abstraction has 1322 states and 1498 transitions. [2021-02-23 22:07:24,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 22:07:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1498 transitions. [2021-02-23 22:07:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-23 22:07:24,361 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:07:24,361 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:07:24,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:07:24,362 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:07:24,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:07:24,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1674567031, now seen corresponding path program 1 times [2021-02-23 22:07:24,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:07:24,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620666948] [2021-02-23 22:07:24,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:07:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,781 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:07:24,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:07:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:07:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:07:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:07:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:07:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-23 22:07:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 22:07:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-23 22:07:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-02-23 22:07:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-23 22:07:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-02-23 22:07:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:24,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:24,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:24,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:24,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:25,031 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-02-23 22:07:25,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620666948] [2021-02-23 22:07:25,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:07:25,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 22:07:25,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510269941] [2021-02-23 22:07:25,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 22:07:25,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:07:25,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 22:07:25,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:07:25,033 INFO L87 Difference]: Start difference. First operand 1322 states and 1498 transitions. Second operand 11 states. [2021-02-23 22:07:25,661 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:27,967 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:28,368 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:28,836 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:29,266 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:29,677 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:30,350 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:30,716 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:31,173 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:07:31,667 INFO L93 Difference]: Finished difference Result 1469 states and 1702 transitions. [2021-02-23 22:07:31,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 22:07:31,668 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2021-02-23 22:07:31,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:07:31,677 INFO L225 Difference]: With dead ends: 1469 [2021-02-23 22:07:31,678 INFO L226 Difference]: Without dead ends: 1466 [2021-02-23 22:07:31,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2021-02-23 22:07:31,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-02-23 22:07:32,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1322. [2021-02-23 22:07:32,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1322 states. [2021-02-23 22:07:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1495 transitions. [2021-02-23 22:07:32,280 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1495 transitions. Word has length 210 [2021-02-23 22:07:32,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:07:32,281 INFO L480 AbstractCegarLoop]: Abstraction has 1322 states and 1495 transitions. [2021-02-23 22:07:32,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 22:07:32,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1495 transitions. [2021-02-23 22:07:32,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-02-23 22:07:32,289 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:07:32,290 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:07:32,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 22:07:32,290 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:07:32,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:07:32,291 INFO L82 PathProgramCache]: Analyzing trace with hash 788070914, now seen corresponding path program 1 times [2021-02-23 22:07:32,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:07:32,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075651832] [2021-02-23 22:07:32,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:07:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,629 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:07:32,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:07:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:07:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:07:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:07:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:07:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-23 22:07:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:07:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:32,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:32,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:07:32,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:07:32,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:07:32,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:07:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 22:07:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 22:07:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-23 22:07:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-02-23 22:07:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-02-23 22:07:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-02-23 22:07:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-02-23 22:07:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:32,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:32,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-23 22:07:32,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075651832] [2021-02-23 22:07:32,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:07:32,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 22:07:32,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117713825] [2021-02-23 22:07:32,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 22:07:32,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:07:32,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 22:07:32,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:07:32,971 INFO L87 Difference]: Start difference. First operand 1322 states and 1495 transitions. Second operand 11 states. [2021-02-23 22:07:34,517 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:34,949 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 22:07:35,393 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-23 22:07:35,790 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:36,201 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:07:36,555 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:38,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:07:38,075 INFO L93 Difference]: Finished difference Result 2788 states and 3276 transitions. [2021-02-23 22:07:38,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 22:07:38,076 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2021-02-23 22:07:38,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:07:38,088 INFO L225 Difference]: With dead ends: 2788 [2021-02-23 22:07:38,089 INFO L226 Difference]: Without dead ends: 1581 [2021-02-23 22:07:38,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-23 22:07:38,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2021-02-23 22:07:38,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1370. [2021-02-23 22:07:38,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1370 states. [2021-02-23 22:07:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1545 transitions. [2021-02-23 22:07:38,679 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1545 transitions. Word has length 246 [2021-02-23 22:07:38,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:07:38,680 INFO L480 AbstractCegarLoop]: Abstraction has 1370 states and 1545 transitions. [2021-02-23 22:07:38,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 22:07:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1545 transitions. [2021-02-23 22:07:38,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-02-23 22:07:38,687 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:07:38,687 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:07:38,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 22:07:38,688 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:07:38,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:07:38,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1331396100, now seen corresponding path program 1 times [2021-02-23 22:07:38,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:07:38,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494189960] [2021-02-23 22:07:38,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:07:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:38,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:38,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:38,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:38,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:38,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:38,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:38,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:38,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:38,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:38,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,073 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:07:39,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:07:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:07:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:07:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:07:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:07:39,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:07:39,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:07:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 22:07:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:39,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:39,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:07:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:39,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:39,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 22:07:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 22:07:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-02-23 22:07:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 22:07:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-02-23 22:07:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-02-23 22:07:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:39,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:39,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-02-23 22:07:39,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494189960] [2021-02-23 22:07:39,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:07:39,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-23 22:07:39,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725571794] [2021-02-23 22:07:39,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 22:07:39,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:07:39,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 22:07:39,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-02-23 22:07:39,376 INFO L87 Difference]: Start difference. First operand 1370 states and 1545 transitions. Second operand 14 states. [2021-02-23 22:07:40,094 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:40,471 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 22:07:40,841 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:41,210 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:07:41,549 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:42,549 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:42,921 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:07:43,306 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:43,710 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:07:44,075 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:07:45,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:07:45,490 INFO L93 Difference]: Finished difference Result 2571 states and 3010 transitions. [2021-02-23 22:07:45,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 22:07:45,491 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 237 [2021-02-23 22:07:45,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:07:45,500 INFO L225 Difference]: With dead ends: 2571 [2021-02-23 22:07:45,500 INFO L226 Difference]: Without dead ends: 1316 [2021-02-23 22:07:45,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-23 22:07:45,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2021-02-23 22:07:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1169. [2021-02-23 22:07:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2021-02-23 22:07:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1306 transitions. [2021-02-23 22:07:46,127 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1306 transitions. Word has length 237 [2021-02-23 22:07:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:07:46,128 INFO L480 AbstractCegarLoop]: Abstraction has 1169 states and 1306 transitions. [2021-02-23 22:07:46,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 22:07:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1306 transitions. [2021-02-23 22:07:46,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-02-23 22:07:46,135 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:07:46,135 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:07:46,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 22:07:46,136 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:07:46,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:07:46,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1266546411, now seen corresponding path program 1 times [2021-02-23 22:07:46,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:07:46,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917010908] [2021-02-23 22:07:46,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:07:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:46,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,503 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:07:46,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:07:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:07:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:07:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:07:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:07:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-23 22:07:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:07:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:46,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:46,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:46,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:07:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:46,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 22:07:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 22:07:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-23 22:07:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:07:46,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:46,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-02-23 22:07:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-23 22:07:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-02-23 22:07:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-02-23 22:07:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:46,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:46,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-02-23 22:07:46,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917010908] [2021-02-23 22:07:46,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:07:46,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-23 22:07:46,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061928472] [2021-02-23 22:07:46,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:07:46,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:07:46,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:07:46,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:07:46,749 INFO L87 Difference]: Start difference. First operand 1169 states and 1306 transitions. Second operand 9 states. [2021-02-23 22:07:47,969 WARN L202 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 204 [2021-02-23 22:07:48,769 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:07:51,771 INFO L93 Difference]: Finished difference Result 2463 states and 2881 transitions. [2021-02-23 22:07:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 22:07:51,771 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 247 [2021-02-23 22:07:51,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:07:51,781 INFO L225 Difference]: With dead ends: 2463 [2021-02-23 22:07:51,781 INFO L226 Difference]: Without dead ends: 1625 [2021-02-23 22:07:51,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-23 22:07:51,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2021-02-23 22:07:52,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1360. [2021-02-23 22:07:52,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1360 states. [2021-02-23 22:07:52,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1533 transitions. [2021-02-23 22:07:52,476 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1533 transitions. Word has length 247 [2021-02-23 22:07:52,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:07:52,477 INFO L480 AbstractCegarLoop]: Abstraction has 1360 states and 1533 transitions. [2021-02-23 22:07:52,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:07:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1533 transitions. [2021-02-23 22:07:52,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-02-23 22:07:52,483 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:07:52,484 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:07:52,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 22:07:52,484 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:07:52,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:07:52,484 INFO L82 PathProgramCache]: Analyzing trace with hash 975062631, now seen corresponding path program 1 times [2021-02-23 22:07:52,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:07:52,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420959564] [2021-02-23 22:07:52,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:07:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:52,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:52,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:52,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:52,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:52,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:52,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:52,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:52,931 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:07:52,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:07:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:52,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:52,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:07:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:52,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:52,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:07:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:52,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:07:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:52,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:52,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:07:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:52,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:52,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-23 22:07:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:52,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:52,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:52,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:07:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:53,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:53,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:53,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:07:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:07:53,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 22:07:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 22:07:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-02-23 22:07:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:53,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:07:53,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-02-23 22:07:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:07:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-02-23 22:07:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:53,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:07:53,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-02-23 22:07:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:07:53,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:07:53,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:07:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-23 22:07:53,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420959564] [2021-02-23 22:07:53,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:07:53,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-02-23 22:07:53,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384248013] [2021-02-23 22:07:53,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 22:07:53,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:07:53,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 22:07:53,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-02-23 22:07:53,221 INFO L87 Difference]: Start difference. First operand 1360 states and 1533 transitions. Second operand 13 states. [2021-02-23 22:07:53,860 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:54,819 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:07:55,672 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:56,063 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:56,481 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:56,885 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:57,262 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:57,636 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:07:58,000 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:07:58,411 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:07:58,857 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 22:07:59,233 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:08:00,992 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:08:01,344 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:08:02,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:08:02,658 INFO L93 Difference]: Finished difference Result 3008 states and 3593 transitions. [2021-02-23 22:08:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-23 22:08:02,658 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 242 [2021-02-23 22:08:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:08:02,669 INFO L225 Difference]: With dead ends: 3008 [2021-02-23 22:08:02,670 INFO L226 Difference]: Without dead ends: 1979 [2021-02-23 22:08:02,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 42 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-02-23 22:08:02,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2021-02-23 22:08:03,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1593. [2021-02-23 22:08:03,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1593 states. [2021-02-23 22:08:03,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 1812 transitions. [2021-02-23 22:08:03,483 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 1812 transitions. Word has length 242 [2021-02-23 22:08:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:08:03,484 INFO L480 AbstractCegarLoop]: Abstraction has 1593 states and 1812 transitions. [2021-02-23 22:08:03,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 22:08:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 1812 transitions. [2021-02-23 22:08:03,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-02-23 22:08:03,489 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:08:03,489 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:08:03,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 22:08:03,489 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:08:03,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:08:03,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1362989195, now seen corresponding path program 2 times [2021-02-23 22:08:03,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:08:03,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36472218] [2021-02-23 22:08:03,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:08:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:08:03,574 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:08:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:08:03,645 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:08:03,917 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:08:03,917 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:08:03,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 22:08:04,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:08:04 BoogieIcfgContainer [2021-02-23 22:08:04,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:08:04,255 INFO L168 Benchmark]: Toolchain (without parser) took 71729.86 ms. Allocated memory was 164.6 MB in the beginning and 1.0 GB in the end (delta: 866.1 MB). Free memory was 139.4 MB in the beginning and 644.9 MB in the end (delta: -505.5 MB). Peak memory consumption was 362.2 MB. Max. memory is 8.0 GB. [2021-02-23 22:08:04,255 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 164.6 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:08:04,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.28 ms. Allocated memory is still 164.6 MB. Free memory was 138.1 MB in the beginning and 117.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 22:08:04,256 INFO L168 Benchmark]: Boogie Preprocessor took 148.99 ms. Allocated memory is still 164.6 MB. Free memory was 117.8 MB in the beginning and 146.2 MB in the end (delta: -28.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:08:04,256 INFO L168 Benchmark]: RCFGBuilder took 1384.97 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 146.2 MB in the beginning and 132.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 60.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:08:04,256 INFO L168 Benchmark]: TraceAbstraction took 69553.60 ms. Allocated memory was 198.2 MB in the beginning and 1.0 GB in the end (delta: 832.6 MB). Free memory was 131.5 MB in the beginning and 644.9 MB in the end (delta: -513.4 MB). Peak memory consumption was 319.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:08:04,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 164.6 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 618.28 ms. Allocated memory is still 164.6 MB. Free memory was 138.1 MB in the beginning and 117.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.99 ms. Allocated memory is still 164.6 MB. Free memory was 117.8 MB in the beginning and 146.2 MB in the end (delta: -28.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1384.97 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 146.2 MB in the beginning and 132.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 60.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 69553.60 ms. Allocated memory was 198.2 MB in the beginning and 1.0 GB in the end (delta: 832.6 MB). Free memory was 131.5 MB in the beginning and 644.9 MB in the end (delta: -513.4 MB). Peak memory consumption was 319.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 786]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L150] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=174, head={182:165}, methaneLevelCritical=146, pumpRunning=0, systemActive=138, waterLevel=142] [L151] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=174, head={182:165}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=142] [L317] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={182:165}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=142] [L585] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=142] [L826] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=1] [L827] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L394] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L399] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L820] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L821] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L400] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L400] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L402] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L404] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L405] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L384] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L50] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L51] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L52] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L67] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L69] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L69] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L77] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L87] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L102] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L166] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L186] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L283] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L284] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L906] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L913] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L914] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L289] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L291] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L294] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L296] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L297] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L191] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L193] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L195] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L214] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L195] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L166] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L172] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L119] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L123] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L897] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L901] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L123] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L123] tmp = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L125] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L172] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L102] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L57] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L59] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L65] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L67] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L77] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L87] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L102] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L159] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L832] COND TRUE waterLevel > 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L833] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L159] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L164] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L166] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L186] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L204] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L166] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L172] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L119] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L123] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L897] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L900] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L901] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L123] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L123] tmp = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L125] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L172] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L102] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L57] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L67] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L75] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L77] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L85] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L87] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L102] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L159] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel > 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L833] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L159] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L164] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L166] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L186] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L189] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L204] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L166] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L172] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L119] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L123] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L897] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L900] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L901] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L123] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L123] tmp = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L125] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L127] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L241] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L242] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L127] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L127] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L129] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L131] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L786] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 69.1s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 56.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2422 SDtfs, 5012 SDslu, 5518 SDs, 0 SdLazy, 10675 SolverSat, 1381 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 469 GetRequests, 290 SyntacticMatches, 10 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 30.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1593occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 1538 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 2254 NumberOfCodeBlocks, 2254 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1955 ConstructedInterpolants, 0 QuantifiedInterpolants, 974015 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 174/185 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...