/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_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 21:46:03,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 21:46:03,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 21:46:03,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 21:46:03,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 21:46:03,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 21:46:03,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 21:46:03,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 21:46:03,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 21:46:03,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 21:46:03,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 21:46:03,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 21:46:03,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 21:46:03,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 21:46:03,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 21:46:03,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 21:46:03,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 21:46:03,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 21:46:03,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 21:46:03,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 21:46:03,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 21:46:03,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 21:46:03,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 21:46:03,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 21:46:03,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 21:46:03,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 21:46:03,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 21:46:03,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 21:46:03,446 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 21:46:03,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 21:46:03,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 21:46:03,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 21:46:03,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 21:46:03,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 21:46:03,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 21:46:03,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 21:46:03,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 21:46:03,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 21:46:03,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 21:46:03,462 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 21:46:03,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 21:46:03,463 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 21:46:03,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 21:46:03,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 21:46:03,463 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 21:46:03,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 21:46:03,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 21:46:03,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 21:46:03,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 21:46:03,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 21:46:03,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 21:46:03,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 21:46:03,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 21:46:03,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 21:46:03,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 21:46:03,885 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 21:46:03,885 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 21:46:03,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2021-02-23 21:46:03,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f484252dd/e1c4e58370b846f2b71940deca9f838a/FLAGa3cc31738 [2021-02-23 21:46:04,600 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 21:46:04,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2021-02-23 21:46:04,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f484252dd/e1c4e58370b846f2b71940deca9f838a/FLAGa3cc31738 [2021-02-23 21:46:04,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f484252dd/e1c4e58370b846f2b71940deca9f838a [2021-02-23 21:46:04,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 21:46:04,936 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 21:46:04,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 21:46:04,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 21:46:04,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 21:46:04,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:46:04" (1/1) ... [2021-02-23 21:46:04,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d260d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:04, skipping insertion in model container [2021-02-23 21:46:04,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:46:04" (1/1) ... [2021-02-23 21:46:04,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 21:46:05,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 21:46:05,414 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_spec1_product41.cil.c[17169,17182] [2021-02-23 21:46:05,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:46:05,443 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 21:46:05,519 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_spec1_product41.cil.c[17169,17182] [2021-02-23 21:46:05,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:46:05,563 INFO L208 MainTranslator]: Completed translation [2021-02-23 21:46:05,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05 WrapperNode [2021-02-23 21:46:05,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 21:46:05,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 21:46:05,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 21:46:05,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 21:46:05,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (1/1) ... [2021-02-23 21:46:05,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (1/1) ... [2021-02-23 21:46:05,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (1/1) ... [2021-02-23 21:46:05,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (1/1) ... [2021-02-23 21:46:05,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (1/1) ... [2021-02-23 21:46:05,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (1/1) ... [2021-02-23 21:46:05,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (1/1) ... [2021-02-23 21:46:05,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 21:46:05,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 21:46:05,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 21:46:05,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 21:46:05,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (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 21:46:05,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 21:46:05,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 21:46:05,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 21:46:05,821 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 21:46:05,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 21:46:05,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 21:46:05,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 21:46:05,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 21:46:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 21:46:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 21:46:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 21:46:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 21:46:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 21:46:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 21:46:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 21:46:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 21:46:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 21:46:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 21:46:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 21:46:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 21:46:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 21:46:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-23 21:46:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 21:46:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 21:46:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 21:46:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 21:46:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 21:46:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 21:46:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 21:46:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 21:46:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 21:46:05,826 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 21:46:05,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 21:46:05,826 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 21:46:05,826 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 21:46:05,826 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 21:46:05,826 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 21:46:05,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 21:46:05,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-23 21:46:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 21:46:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 21:46:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 21:46:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 21:46:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 21:46:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 21:46:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 21:46:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 21:46:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 21:46:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 21:46:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 21:46:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 21:46:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 21:46:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 21:46:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 21:46:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 21:46:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 21:46:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 21:46:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 21:46:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 21:46:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 21:46:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 21:46:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 21:46:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 21:46:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 21:46:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 21:46:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 21:46:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 21:46:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 21:46:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 21:46:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 21:46:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 21:46:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 21:46:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 21:46:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 21:46:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-23 21:46:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 21:46:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 21:46:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 21:46:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-23 21:46:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 21:46:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 21:46:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 21:46:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 21:46:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 21:46:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 21:46:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 21:46:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 21:46:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 21:46:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 21:46:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 21:46:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 21:46:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 21:46:07,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 21:46:07,310 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 21:46:07,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:46:07 BoogieIcfgContainer [2021-02-23 21:46:07,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 21:46:07,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 21:46:07,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 21:46:07,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 21:46:07,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 09:46:04" (1/3) ... [2021-02-23 21:46:07,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e55402d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:46:07, skipping insertion in model container [2021-02-23 21:46:07,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:46:05" (2/3) ... [2021-02-23 21:46:07,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e55402d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:46:07, skipping insertion in model container [2021-02-23 21:46:07,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:46:07" (3/3) ... [2021-02-23 21:46:07,324 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2021-02-23 21:46:07,331 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 21:46:07,337 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 21:46:07,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 21:46:07,380 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 21:46:07,380 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 21:46:07,381 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 21:46:07,381 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 21:46:07,381 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 21:46:07,381 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 21:46:07,381 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 21:46:07,382 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 21:46:07,404 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2021-02-23 21:46:07,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-23 21:46:07,423 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:07,424 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 21:46:07,425 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:07,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:07,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1903071762, now seen corresponding path program 1 times [2021-02-23 21:46:07,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:07,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39442316] [2021-02-23 21:46:07,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:07,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:07,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:07,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:07,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:08,342 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:08,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:08,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:08,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:08,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:08,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:08,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:08,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:08,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:08,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:08,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:08,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:08,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:08,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:08,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:08,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:46:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:08,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:08,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 21:46:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:08,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:08,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:08,593 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 21:46:08,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39442316] [2021-02-23 21:46:08,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:08,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 21:46:08,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110401354] [2021-02-23 21:46:08,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 21:46:08,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:08,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 21:46:08,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:46:08,619 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 3 states. [2021-02-23 21:46:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:09,988 INFO L93 Difference]: Finished difference Result 461 states and 547 transitions. [2021-02-23 21:46:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 21:46:09,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-23 21:46:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:10,011 INFO L225 Difference]: With dead ends: 461 [2021-02-23 21:46:10,012 INFO L226 Difference]: Without dead ends: 290 [2021-02-23 21:46:10,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:46:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-02-23 21:46:10,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249. [2021-02-23 21:46:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2021-02-23 21:46:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2021-02-23 21:46:10,172 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 147 [2021-02-23 21:46:10,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:10,173 INFO L480 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2021-02-23 21:46:10,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 21:46:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2021-02-23 21:46:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-23 21:46:10,177 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:10,177 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 21:46:10,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 21:46:10,178 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:10,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:10,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1306648680, now seen corresponding path program 1 times [2021-02-23 21:46:10,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:10,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320920769] [2021-02-23 21:46:10,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:10,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:10,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,543 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:10,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:10,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:10,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:10,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:10,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:10,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 21:46:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:10,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:46:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:10,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:10,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:10,641 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 21:46:10,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320920769] [2021-02-23 21:46:10,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:10,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 21:46:10,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148281985] [2021-02-23 21:46:10,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 21:46:10,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:10,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 21:46:10,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 21:46:10,645 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 4 states. [2021-02-23 21:46:11,269 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:12,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:12,102 INFO L93 Difference]: Finished difference Result 377 states and 421 transitions. [2021-02-23 21:46:12,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 21:46:12,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-23 21:46:12,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:12,108 INFO L225 Difference]: With dead ends: 377 [2021-02-23 21:46:12,108 INFO L226 Difference]: Without dead ends: 273 [2021-02-23 21:46:12,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 21:46:12,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-02-23 21:46:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 239. [2021-02-23 21:46:12,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2021-02-23 21:46:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 256 transitions. [2021-02-23 21:46:12,209 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 256 transitions. Word has length 148 [2021-02-23 21:46:12,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:12,210 INFO L480 AbstractCegarLoop]: Abstraction has 239 states and 256 transitions. [2021-02-23 21:46:12,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 21:46:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 256 transitions. [2021-02-23 21:46:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-23 21:46:12,212 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:12,213 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 21:46:12,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 21:46:12,213 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:12,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:12,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1303384095, now seen corresponding path program 1 times [2021-02-23 21:46:12,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:12,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137995112] [2021-02-23 21:46:12,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:12,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:12,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:12,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:12,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:46:12,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:12,721 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:12,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:12,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:12,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:46:12,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:12,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:12,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:12,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:12,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:12,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:12,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:12,907 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 21:46:12,908 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 21:46:12,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:12,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:12,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 21:46:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:12,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:12,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 21:46:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:12,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:12,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:12,983 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 21:46:12,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137995112] [2021-02-23 21:46:12,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:12,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 21:46:12,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993268407] [2021-02-23 21:46:12,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 21:46:12,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:12,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 21:46:12,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 21:46:12,992 INFO L87 Difference]: Start difference. First operand 239 states and 256 transitions. Second operand 9 states. [2021-02-23 21:46:13,511 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:13,830 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:14,077 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 21:46:14,306 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:14,545 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:46:14,800 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:16,048 INFO L93 Difference]: Finished difference Result 397 states and 446 transitions. [2021-02-23 21:46:16,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 21:46:16,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-23 21:46:16,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:16,059 INFO L225 Difference]: With dead ends: 397 [2021-02-23 21:46:16,060 INFO L226 Difference]: Without dead ends: 273 [2021-02-23 21:46:16,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-23 21:46:16,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-02-23 21:46:16,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 239. [2021-02-23 21:46:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2021-02-23 21:46:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 255 transitions. [2021-02-23 21:46:16,193 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 255 transitions. Word has length 157 [2021-02-23 21:46:16,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:16,195 INFO L480 AbstractCegarLoop]: Abstraction has 239 states and 255 transitions. [2021-02-23 21:46:16,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 21:46:16,195 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 255 transitions. [2021-02-23 21:46:16,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-23 21:46:16,198 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:16,198 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 21:46:16,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 21:46:16,198 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:16,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:16,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1029755946, now seen corresponding path program 1 times [2021-02-23 21:46:16,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:16,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686251357] [2021-02-23 21:46:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:16,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:16,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:16,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:16,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:16,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,538 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:16,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:16,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-23 21:46:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:16,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:46:16,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:46:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-23 21:46:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 21:46:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:16,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:16,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:16,696 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 21:46:16,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686251357] [2021-02-23 21:46:16,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:16,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 21:46:16,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305966219] [2021-02-23 21:46:16,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 21:46:16,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:16,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 21:46:16,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-23 21:46:16,698 INFO L87 Difference]: Start difference. First operand 239 states and 255 transitions. Second operand 6 states. [2021-02-23 21:46:17,223 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:18,498 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:19,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:19,050 INFO L93 Difference]: Finished difference Result 519 states and 589 transitions. [2021-02-23 21:46:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 21:46:19,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2021-02-23 21:46:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:19,054 INFO L225 Difference]: With dead ends: 519 [2021-02-23 21:46:19,055 INFO L226 Difference]: Without dead ends: 395 [2021-02-23 21:46:19,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-23 21:46:19,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-02-23 21:46:19,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 336. [2021-02-23 21:46:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2021-02-23 21:46:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 362 transitions. [2021-02-23 21:46:19,232 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 362 transitions. Word has length 165 [2021-02-23 21:46:19,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:19,233 INFO L480 AbstractCegarLoop]: Abstraction has 336 states and 362 transitions. [2021-02-23 21:46:19,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 21:46:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 362 transitions. [2021-02-23 21:46:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-23 21:46:19,236 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:19,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:46:19,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 21:46:19,237 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:19,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1009193113, now seen corresponding path program 1 times [2021-02-23 21:46:19,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:19,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39325087] [2021-02-23 21:46:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:19,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:19,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,528 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:19,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:19,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:19,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-23 21:46:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:46:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:19,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:19,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:46:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:19,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:19,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:46:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-23 21:46:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-23 21:46:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:19,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:19,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:19,778 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 21:46:19,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39325087] [2021-02-23 21:46:19,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:19,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 21:46:19,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915738980] [2021-02-23 21:46:19,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 21:46:19,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:19,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 21:46:19,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-02-23 21:46:19,781 INFO L87 Difference]: Start difference. First operand 336 states and 362 transitions. Second operand 12 states. [2021-02-23 21:46:20,372 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:20,661 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 21:46:20,931 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:21,205 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:21,460 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:22,179 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:22,449 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:22,731 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:23,011 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:23,281 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:24,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:24,247 INFO L93 Difference]: Finished difference Result 621 states and 705 transitions. [2021-02-23 21:46:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 21:46:24,247 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2021-02-23 21:46:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:24,251 INFO L225 Difference]: With dead ends: 621 [2021-02-23 21:46:24,251 INFO L226 Difference]: Without dead ends: 400 [2021-02-23 21:46:24,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2021-02-23 21:46:24,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-02-23 21:46:24,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 342. [2021-02-23 21:46:24,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2021-02-23 21:46:24,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 368 transitions. [2021-02-23 21:46:24,404 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 368 transitions. Word has length 189 [2021-02-23 21:46:24,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:24,405 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 368 transitions. [2021-02-23 21:46:24,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 21:46:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 368 transitions. [2021-02-23 21:46:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-23 21:46:24,407 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:24,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:46:24,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 21:46:24,408 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:24,409 INFO L82 PathProgramCache]: Analyzing trace with hash -607496135, now seen corresponding path program 1 times [2021-02-23 21:46:24,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:24,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250722987] [2021-02-23 21:46:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,690 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:24,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-23 21:46:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:46:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:46:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:46:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-23 21:46:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:24,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-23 21:46:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:24,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:24,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:24,858 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 21:46:24,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250722987] [2021-02-23 21:46:24,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:24,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 21:46:24,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227524728] [2021-02-23 21:46:24,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 21:46:24,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:24,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 21:46:24,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 21:46:24,861 INFO L87 Difference]: Start difference. First operand 342 states and 368 transitions. Second operand 9 states. [2021-02-23 21:46:25,376 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:26,574 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:26,858 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:46:27,195 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:27,453 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:28,018 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:28,282 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:46:28,528 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:28,856 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:29,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:29,611 INFO L93 Difference]: Finished difference Result 850 states and 978 transitions. [2021-02-23 21:46:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 21:46:29,611 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2021-02-23 21:46:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:29,617 INFO L225 Difference]: With dead ends: 850 [2021-02-23 21:46:29,617 INFO L226 Difference]: Without dead ends: 623 [2021-02-23 21:46:29,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-02-23 21:46:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2021-02-23 21:46:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 532. [2021-02-23 21:46:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2021-02-23 21:46:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 579 transitions. [2021-02-23 21:46:29,837 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 579 transitions. Word has length 189 [2021-02-23 21:46:29,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:29,838 INFO L480 AbstractCegarLoop]: Abstraction has 532 states and 579 transitions. [2021-02-23 21:46:29,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 21:46:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 579 transitions. [2021-02-23 21:46:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-02-23 21:46:29,841 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:29,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:46:29,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 21:46:29,841 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:29,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:29,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1645791901, now seen corresponding path program 1 times [2021-02-23 21:46:29,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:29,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577134154] [2021-02-23 21:46:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:29,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:29,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:29,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:29,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:29,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:29,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:29,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:29,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:29,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:29,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,197 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:30,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:30,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:46:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:46:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:30,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:46:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:46:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:46:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-23 21:46:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-23 21:46:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:30,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:30,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:30,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:30,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:30,366 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 21:46:30,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577134154] [2021-02-23 21:46:30,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:30,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 21:46:30,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300305360] [2021-02-23 21:46:30,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 21:46:30,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:30,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 21:46:30,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 21:46:30,369 INFO L87 Difference]: Start difference. First operand 532 states and 579 transitions. Second operand 10 states. [2021-02-23 21:46:30,853 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:32,233 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:32,485 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:32,834 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:33,682 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:33,958 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:46:34,239 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:34,507 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:46:34,761 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:34,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:34,980 INFO L93 Difference]: Finished difference Result 689 states and 797 transitions. [2021-02-23 21:46:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-23 21:46:34,981 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2021-02-23 21:46:34,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:34,986 INFO L225 Difference]: With dead ends: 689 [2021-02-23 21:46:34,986 INFO L226 Difference]: Without dead ends: 686 [2021-02-23 21:46:34,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-23 21:46:34,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-02-23 21:46:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 532. [2021-02-23 21:46:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2021-02-23 21:46:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 578 transitions. [2021-02-23 21:46:35,229 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 578 transitions. Word has length 194 [2021-02-23 21:46:35,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:35,230 INFO L480 AbstractCegarLoop]: Abstraction has 532 states and 578 transitions. [2021-02-23 21:46:35,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 21:46:35,230 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 578 transitions. [2021-02-23 21:46:35,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-23 21:46:35,234 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:35,234 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:46:35,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 21:46:35,235 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:35,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:35,235 INFO L82 PathProgramCache]: Analyzing trace with hash -2122444853, now seen corresponding path program 1 times [2021-02-23 21:46:35,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:35,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656371091] [2021-02-23 21:46:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,511 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:35,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:46:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:46:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:35,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:35,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:46:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:35,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:35,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:35,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:46:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:46:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 21:46:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 21:46:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 21:46:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-23 21:46:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-23 21:46:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:35,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:35,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-02-23 21:46:35,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656371091] [2021-02-23 21:46:35,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:35,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 21:46:35,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200089289] [2021-02-23 21:46:35,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 21:46:35,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:35,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 21:46:35,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 21:46:35,725 INFO L87 Difference]: Start difference. First operand 532 states and 578 transitions. Second operand 10 states. [2021-02-23 21:46:36,824 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:46:37,096 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 21:46:37,387 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-23 21:46:37,651 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:37,924 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:38,174 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:46:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:39,308 INFO L93 Difference]: Finished difference Result 1117 states and 1296 transitions. [2021-02-23 21:46:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 21:46:39,309 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2021-02-23 21:46:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:39,314 INFO L225 Difference]: With dead ends: 1117 [2021-02-23 21:46:39,314 INFO L226 Difference]: Without dead ends: 700 [2021-02-23 21:46:39,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-23 21:46:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-02-23 21:46:39,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 548. [2021-02-23 21:46:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2021-02-23 21:46:39,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 594 transitions. [2021-02-23 21:46:39,647 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 594 transitions. Word has length 217 [2021-02-23 21:46:39,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:39,648 INFO L480 AbstractCegarLoop]: Abstraction has 548 states and 594 transitions. [2021-02-23 21:46:39,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 21:46:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 594 transitions. [2021-02-23 21:46:39,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-23 21:46:39,651 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:39,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:46:39,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 21:46:39,652 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:39,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:39,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1090573710, now seen corresponding path program 1 times [2021-02-23 21:46:39,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:39,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32045754] [2021-02-23 21:46:39,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:39,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:39,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:39,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:39,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:46:39,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,911 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:39,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:46:39,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:46:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:46:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:39,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:46:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:39,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:39,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:39,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:46:40,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:46:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:40,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:40,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:40,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:40,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:46:40,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:46:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:40,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:40,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:40,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 21:46:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:40,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:40,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:40,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 21:46:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:40,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:40,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:40,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 21:46:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:40,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:40,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:40,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-23 21:46:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:40,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:40,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:40,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-23 21:46:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:40,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:40,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:40,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-02-23 21:46:40,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32045754] [2021-02-23 21:46:40,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:46:40,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 21:46:40,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174852280] [2021-02-23 21:46:40,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 21:46:40,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:40,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 21:46:40,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-23 21:46:40,093 INFO L87 Difference]: Start difference. First operand 548 states and 594 transitions. Second operand 7 states. [2021-02-23 21:46:40,575 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:41,206 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:43,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:43,483 INFO L93 Difference]: Finished difference Result 1552 states and 1840 transitions. [2021-02-23 21:46:43,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 21:46:43,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2021-02-23 21:46:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:43,491 INFO L225 Difference]: With dead ends: 1552 [2021-02-23 21:46:43,491 INFO L226 Difference]: Without dead ends: 1119 [2021-02-23 21:46:43,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-23 21:46:43,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2021-02-23 21:46:44,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 946. [2021-02-23 21:46:44,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2021-02-23 21:46:44,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1058 transitions. [2021-02-23 21:46:44,067 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1058 transitions. Word has length 217 [2021-02-23 21:46:44,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:44,068 INFO L480 AbstractCegarLoop]: Abstraction has 946 states and 1058 transitions. [2021-02-23 21:46:44,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 21:46:44,068 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1058 transitions. [2021-02-23 21:46:44,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-02-23 21:46:44,074 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:44,074 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:46:44,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 21:46:44,074 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:44,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:44,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1936168699, now seen corresponding path program 1 times [2021-02-23 21:46:44,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:44,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36523330] [2021-02-23 21:46:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:44,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:44,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:46:44,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,353 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:46:44,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:46:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:46:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:46:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:46:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:44,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:44,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:46:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-23 21:46:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 21:46:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:44,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-23 21:46:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:46:44,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:46:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:46:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:46:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,546 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-23 21:46:44,547 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-23 21:46:44,569 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-23 21:46:44,569 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-23 21:46:44,592 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-23 21:46:44,593 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-23 21:46:44,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 21:46:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:44,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:44,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:44,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 21:46:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:44,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:46:44,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 21:46:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-23 21:46:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-02-23 21:46:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:46:44,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:46:44,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:46:44,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-23 21:46:44,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36523330] [2021-02-23 21:46:44,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 21:46:44,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-02-23 21:46:44,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392202852] [2021-02-23 21:46:44,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-23 21:46:44,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:46:44,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-23 21:46:44,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2021-02-23 21:46:44,797 INFO L87 Difference]: Start difference. First operand 946 states and 1058 transitions. Second operand 20 states. [2021-02-23 21:46:45,385 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:45,743 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:46:46,066 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 21:46:46,387 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:46,670 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 21:46:46,964 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:47,895 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:49,244 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:49,572 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:46:49,986 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:50,341 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:50,661 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:46:50,988 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:46:51,291 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:51,639 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:46:51,992 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:52,397 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:46:52,754 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:46:53,101 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:46:53,786 WARN L202 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-02-23 21:46:54,492 WARN L202 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2021-02-23 21:46:55,091 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-02-23 21:46:56,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:56,941 INFO L93 Difference]: Finished difference Result 1902 states and 2196 transitions. [2021-02-23 21:46:56,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-23 21:46:56,942 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 222 [2021-02-23 21:46:56,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:56,949 INFO L225 Difference]: With dead ends: 1902 [2021-02-23 21:46:56,949 INFO L226 Difference]: Without dead ends: 1071 [2021-02-23 21:46:56,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=497, Invalid=2155, Unknown=0, NotChecked=0, Total=2652 [2021-02-23 21:46:56,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-02-23 21:46:57,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 903. [2021-02-23 21:46:57,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2021-02-23 21:46:57,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 996 transitions. [2021-02-23 21:46:57,470 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 996 transitions. Word has length 222 [2021-02-23 21:46:57,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:57,471 INFO L480 AbstractCegarLoop]: Abstraction has 903 states and 996 transitions. [2021-02-23 21:46:57,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-23 21:46:57,471 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 996 transitions. [2021-02-23 21:46:57,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-02-23 21:46:57,476 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:57,477 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:46:57,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 21:46:57,477 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:57,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:57,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1415039513, now seen corresponding path program 1 times [2021-02-23 21:46:57,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:57,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484939201] [2021-02-23 21:46:57,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:46:57,555 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:46:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:46:57,633 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:46:58,088 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 21:46:58,089 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 21:46:58,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 21:46:58,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 09:46:58 BoogieIcfgContainer [2021-02-23 21:46:58,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 21:46:58,375 INFO L168 Benchmark]: Toolchain (without parser) took 53452.18 ms. Allocated memory was 168.8 MB in the beginning and 702.5 MB in the end (delta: 533.7 MB). Free memory was 143.3 MB in the beginning and 572.3 MB in the end (delta: -429.0 MB). Peak memory consumption was 425.0 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:58,376 INFO L168 Benchmark]: CDTParser took 1.07 ms. Allocated memory is still 168.8 MB. Free memory is still 147.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 21:46:58,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.18 ms. Allocated memory is still 168.8 MB. Free memory was 142.2 MB in the beginning and 121.9 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:58,376 INFO L168 Benchmark]: Boogie Preprocessor took 93.27 ms. Allocated memory is still 168.8 MB. Free memory was 121.9 MB in the beginning and 118.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:58,377 INFO L168 Benchmark]: RCFGBuilder took 1654.49 ms. Allocated memory was 168.8 MB in the beginning and 233.8 MB in the end (delta: 65.0 MB). Free memory was 117.9 MB in the beginning and 205.3 MB in the end (delta: -87.4 MB). Peak memory consumption was 66.3 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:58,377 INFO L168 Benchmark]: TraceAbstraction took 51058.42 ms. Allocated memory was 233.8 MB in the beginning and 702.5 MB in the end (delta: 468.7 MB). Free memory was 205.3 MB in the beginning and 572.3 MB in the end (delta: -367.0 MB). Peak memory consumption was 420.5 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:58,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07 ms. Allocated memory is still 168.8 MB. Free memory is still 147.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 622.18 ms. Allocated memory is still 168.8 MB. Free memory was 142.2 MB in the beginning and 121.9 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.27 ms. Allocated memory is still 168.8 MB. Free memory was 121.9 MB in the beginning and 118.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1654.49 ms. Allocated memory was 168.8 MB in the beginning and 233.8 MB in the end (delta: 65.0 MB). Free memory was 117.9 MB in the beginning and 205.3 MB in the end (delta: -87.4 MB). Peak memory consumption was 66.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 51058.42 ms. Allocated memory was 233.8 MB in the beginning and 702.5 MB in the end (delta: 468.7 MB). Free memory was 205.3 MB in the beginning and 572.3 MB in the end (delta: -367.0 MB). Peak memory consumption was 420.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 889]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=145, pumpRunning=131, systemActive=130, waterLevel=138] [L482] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=145, pumpRunning=131, systemActive=130, waterLevel=1] [L483] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L580] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=130, waterLevel=1] [L581] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L751] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L828] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L833] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L876] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L880] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L834] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L834] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L836] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L838] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L839] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L818] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L416] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L420] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L432] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L434] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L500] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L501] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L442] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L452] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L465] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L588] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L732] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L733] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L734] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L570] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L738] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L740] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L743] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L745] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L746] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L622] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L624] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L626] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L655] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L657] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L661] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L626] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L597] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L603] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L895] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L900] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L902] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L603] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L465] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L430] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L432] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L440] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L442] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L444] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L512] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L515] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L444] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L452] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L465] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L588] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L590] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L488] COND TRUE waterLevel > 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L489] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L590] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L597] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L635] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L597] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L603] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L895] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L900] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L904] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L691] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L904] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L904] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L906] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L908] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L889] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 50.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 41.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2483 SDtfs, 4886 SDslu, 5573 SDs, 0 SdLazy, 10501 SolverSat, 1424 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 430 GetRequests, 265 SyntacticMatches, 4 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 21.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=946occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 964 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 2114 NumberOfCodeBlocks, 2114 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1835 ConstructedInterpolants, 0 QuantifiedInterpolants, 881930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 12/15 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...