/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:43:43,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:43:43,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:43:43,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 00:43:43,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 00:43:43,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 00:43:43,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 00:43:43,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 00:43:43,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 00:43:43,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 00:43:43,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 00:43:43,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 00:43:43,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:43:43,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:43:43,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:43:43,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:43:43,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:43:43,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:43:43,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:43:43,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:43:43,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:43:43,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:43:43,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:43:43,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:43:43,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 00:43:43,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 00:43:43,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 00:43:43,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 00:43:43,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 00:43:43,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 00:43:43,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 00:43:43,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 00:43:43,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 00:43:43,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 00:43:43,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 00:43:43,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 00:43:43,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 00:43:43,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 00:43:43,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:43:43,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:43:43,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:43:43,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 00:43:43,492 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:43:43,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:43:43,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:43:43,494 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:43:43,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:43:43,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:43:43,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:43:43,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:43:43,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:43:43,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:43:43,496 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:43:43,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:43:43,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:43:43,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:43:43,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:43:43,497 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:43:43,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:43:43,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:43:43,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:43:43,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:43:43,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:43:43,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:43:43,499 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 00:43:43,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 00:43:43,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:43:43,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:43:43,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:43:43,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:43:43,980 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:43:43,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2021-02-22 00:43:44,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235671031/eb530c43118f4ae28ebb979f7bc0e437/FLAGa80be9d61 [2021-02-22 00:43:44,766 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:43:44,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2021-02-22 00:43:44,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235671031/eb530c43118f4ae28ebb979f7bc0e437/FLAGa80be9d61 [2021-02-22 00:43:45,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235671031/eb530c43118f4ae28ebb979f7bc0e437 [2021-02-22 00:43:45,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:43:45,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:43:45,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:43:45,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:43:45,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:43:45,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf20ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45, skipping insertion in model container [2021-02-22 00:43:45,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:43:45,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:43:45,579 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_product37.cil.c[12699,12712] [2021-02-22 00:43:45,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:43:45,640 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:43:45,694 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_product37.cil.c[12699,12712] [2021-02-22 00:43:45,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:43:45,757 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:43:45,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45 WrapperNode [2021-02-22 00:43:45,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:43:45,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:43:45,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:43:45,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:43:45,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (1/1) ... [2021-02-22 00:43:45,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:43:45,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:43:45,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:43:45,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:43:45,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (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 [2021-02-22 00:43:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:43:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:43:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 00:43:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:43:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 00:43:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 00:43:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 00:43:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 00:43:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 00:43:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 00:43:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 00:43:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 00:43:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 00:43:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 00:43:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:43:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-22 00:43:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 00:43:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 00:43:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 00:43:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 00:43:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 00:43:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 00:43:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 00:43:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 00:43:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 00:43:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 00:43:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 00:43:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 00:43:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 00:43:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 00:43:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 00:43:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 00:43:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 00:43:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 00:43:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 00:43:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 00:43:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 00:43:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 00:43:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 00:43:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:43:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:43:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:43:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:43:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:43:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 00:43:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 00:43:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 00:43:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 00:43:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 00:43:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 00:43:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:43:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 00:43:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 00:43:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:43:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 00:43:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 00:43:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:43:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 00:43:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 00:43:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 00:43:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 00:43:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 00:43:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 00:43:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 00:43:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 00:43:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 00:43:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 00:43:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 00:43:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 00:43:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 00:43:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 00:43:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 00:43:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:43:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 00:43:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 00:43:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 00:43:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-22 00:43:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 00:43:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 00:43:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 00:43:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 00:43:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 00:43:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 00:43:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 00:43:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 00:43:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 00:43:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 00:43:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 00:43:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 00:43:46,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:43:46,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:43:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:43:47,516 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:43:47,517 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 00:43:47,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:43:47 BoogieIcfgContainer [2021-02-22 00:43:47,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:43:47,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:43:47,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:43:47,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:43:47,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:43:45" (1/3) ... [2021-02-22 00:43:47,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b066d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:43:47, skipping insertion in model container [2021-02-22 00:43:47,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:43:45" (2/3) ... [2021-02-22 00:43:47,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b066d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:43:47, skipping insertion in model container [2021-02-22 00:43:47,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:43:47" (3/3) ... [2021-02-22 00:43:47,538 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2021-02-22 00:43:47,546 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:43:47,552 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:43:47,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:43:47,614 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:43:47,614 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:43:47,614 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 00:43:47,614 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:43:47,615 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:43:47,616 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:43:47,616 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:43:47,616 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:43:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states. [2021-02-22 00:43:47,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-22 00:43:47,692 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:43:47,693 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] [2021-02-22 00:43:47,694 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:43:47,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:43:47,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1627698146, now seen corresponding path program 1 times [2021-02-22 00:43:47,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:43:47,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705127946] [2021-02-22 00:43:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:43:47,798 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:43:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:48,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,613 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:43:48,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:43:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:48,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:43:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:48,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:43:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:48,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:43:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:48,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:43:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:48,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:43:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:48,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 00:43:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:48,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:48,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:43:48,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705127946] [2021-02-22 00:43:48,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:43:48,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 00:43:48,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323747362] [2021-02-22 00:43:48,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 00:43:48,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:43:48,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 00:43:48,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 00:43:48,862 INFO L87 Difference]: Start difference. First operand 307 states. Second operand 3 states. [2021-02-22 00:43:50,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:43:50,573 INFO L93 Difference]: Finished difference Result 473 states and 564 transitions. [2021-02-22 00:43:50,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 00:43:50,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-22 00:43:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:43:50,592 INFO L225 Difference]: With dead ends: 473 [2021-02-22 00:43:50,593 INFO L226 Difference]: Without dead ends: 296 [2021-02-22 00:43:50,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 00:43:50,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-02-22 00:43:50,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2021-02-22 00:43:50,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2021-02-22 00:43:50,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions. [2021-02-22 00:43:50,762 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 147 [2021-02-22 00:43:50,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:43:50,763 INFO L480 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions. [2021-02-22 00:43:50,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 00:43:50,764 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions. [2021-02-22 00:43:50,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-22 00:43:50,768 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:43:50,768 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] [2021-02-22 00:43:50,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:43:50,769 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:43:50,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:43:50,770 INFO L82 PathProgramCache]: Analyzing trace with hash -2118354520, now seen corresponding path program 1 times [2021-02-22 00:43:50,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:43:50,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514851452] [2021-02-22 00:43:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:43:50,775 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:43:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:50,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:50,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:50,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:50,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:50,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:50,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:51,304 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:43:51,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:43:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:51,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:51,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:51,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:43:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:51,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:51,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:51,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:43:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:51,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:51,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:51,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:43:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:51,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:51,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:51,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:43:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:51,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:51,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:51,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 00:43:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:51,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:51,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:51,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 00:43:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:51,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:51,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:43:51,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514851452] [2021-02-22 00:43:51,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:43:51,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 00:43:51,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10858459] [2021-02-22 00:43:51,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 00:43:51,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:43:51,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 00:43:51,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 00:43:51,432 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 4 states. [2021-02-22 00:43:52,256 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:43:53,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:43:53,335 INFO L93 Difference]: Finished difference Result 389 states and 438 transitions. [2021-02-22 00:43:53,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 00:43:53,336 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-22 00:43:53,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:43:53,340 INFO L225 Difference]: With dead ends: 389 [2021-02-22 00:43:53,341 INFO L226 Difference]: Without dead ends: 279 [2021-02-22 00:43:53,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 00:43:53,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-22 00:43:53,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2021-02-22 00:43:53,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2021-02-22 00:43:53,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2021-02-22 00:43:53,462 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 148 [2021-02-22 00:43:53,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:43:53,463 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2021-02-22 00:43:53,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 00:43:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2021-02-22 00:43:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-22 00:43:53,466 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:43:53,466 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] [2021-02-22 00:43:53,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 00:43:53,467 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:43:53,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:43:53,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1206642817, now seen corresponding path program 1 times [2021-02-22 00:43:53,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:43:53,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836266176] [2021-02-22 00:43:53,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:43:53,472 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:43:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:53,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:53,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:53,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:53,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:43:53,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:53,911 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:43:53,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:43:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:53,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:53,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:43:53,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:43:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:53,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:53,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:43:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:53,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:53,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:43:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:53,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:53,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:54,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:54,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:43:54,024 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 00:43:54,025 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 00:43:54,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:43:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:54,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:54,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:54,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 00:43:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:54,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:54,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:54,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-22 00:43:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:54,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:54,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:54,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:43:54,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836266176] [2021-02-22 00:43:54,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:43:54,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 00:43:54,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684283590] [2021-02-22 00:43:54,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 00:43:54,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:43:54,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 00:43:54,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 00:43:54,122 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 9 states. [2021-02-22 00:43:54,764 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:43:55,236 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:43:55,649 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:43:56,075 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:43:56,487 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:43:56,928 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:43:58,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:43:58,557 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2021-02-22 00:43:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 00:43:58,558 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-22 00:43:58,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:43:58,562 INFO L225 Difference]: With dead ends: 409 [2021-02-22 00:43:58,562 INFO L226 Difference]: Without dead ends: 279 [2021-02-22 00:43:58,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-22 00:43:58,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-22 00:43:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2021-02-22 00:43:58,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2021-02-22 00:43:58,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2021-02-22 00:43:58,663 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 157 [2021-02-22 00:43:58,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:43:58,664 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2021-02-22 00:43:58,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 00:43:58,664 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2021-02-22 00:43:58,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-02-22 00:43:58,667 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:43:58,667 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] [2021-02-22 00:43:58,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 00:43:58,667 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:43:58,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:43:58,668 INFO L82 PathProgramCache]: Analyzing trace with hash -2129969252, now seen corresponding path program 1 times [2021-02-22 00:43:58,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:43:58,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883543255] [2021-02-22 00:43:58,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:43:58,672 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:43:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:58,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:58,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:58,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:58,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:58,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:58,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:58,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:58,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:58,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:58,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:58,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:58,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,132 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:43:59,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:43:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:59,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:43:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:43:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:43:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:43:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-22 00:43:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:59,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:43:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:43:59,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:43:59,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:43:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-22 00:43:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-22 00:43:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:43:59,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:43:59,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:43:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:43:59,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883543255] [2021-02-22 00:43:59,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:43:59,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 00:43:59,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963349630] [2021-02-22 00:43:59,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 00:43:59,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:43:59,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 00:43:59,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-22 00:43:59,355 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand 6 states. [2021-02-22 00:43:59,993 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:01,678 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:02,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:02,487 INFO L93 Difference]: Finished difference Result 540 states and 618 transitions. [2021-02-22 00:44:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 00:44:02,488 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2021-02-22 00:44:02,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:02,492 INFO L225 Difference]: With dead ends: 540 [2021-02-22 00:44:02,492 INFO L226 Difference]: Without dead ends: 410 [2021-02-22 00:44:02,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-02-22 00:44:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-02-22 00:44:02,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 351. [2021-02-22 00:44:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2021-02-22 00:44:02,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 378 transitions. [2021-02-22 00:44:02,649 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 378 transitions. Word has length 170 [2021-02-22 00:44:02,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:02,649 INFO L480 AbstractCegarLoop]: Abstraction has 351 states and 378 transitions. [2021-02-22 00:44:02,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 00:44:02,649 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 378 transitions. [2021-02-22 00:44:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-02-22 00:44:02,652 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:02,652 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] [2021-02-22 00:44:02,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 00:44:02,653 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:02,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:02,653 INFO L82 PathProgramCache]: Analyzing trace with hash -711714552, now seen corresponding path program 1 times [2021-02-22 00:44:02,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:02,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026828376] [2021-02-22 00:44:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:02,657 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:02,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:02,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:02,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:02,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:02,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:02,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:02,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:02,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:02,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:02,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:02,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:02,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:02,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:02,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,065 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:03,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:03,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-22 00:44:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-22 00:44:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:03,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:03,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-22 00:44:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:03,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:03,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:03,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026828376] [2021-02-22 00:44:03,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:03,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 00:44:03,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349099164] [2021-02-22 00:44:03,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 00:44:03,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:03,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 00:44:03,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 00:44:03,301 INFO L87 Difference]: Start difference. First operand 351 states and 378 transitions. Second operand 9 states. [2021-02-22 00:44:04,100 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:05,814 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:06,205 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:06,584 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:06,960 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:07,313 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:07,689 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:08,051 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:08,543 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:09,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:09,849 INFO L93 Difference]: Finished difference Result 877 states and 1013 transitions. [2021-02-22 00:44:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-22 00:44:09,850 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2021-02-22 00:44:09,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:09,855 INFO L225 Difference]: With dead ends: 877 [2021-02-22 00:44:09,856 INFO L226 Difference]: Without dead ends: 641 [2021-02-22 00:44:09,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-02-22 00:44:09,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2021-02-22 00:44:10,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 550. [2021-02-22 00:44:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2021-02-22 00:44:10,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 599 transitions. [2021-02-22 00:44:10,113 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 599 transitions. Word has length 194 [2021-02-22 00:44:10,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:10,114 INFO L480 AbstractCegarLoop]: Abstraction has 550 states and 599 transitions. [2021-02-22 00:44:10,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 00:44:10,114 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 599 transitions. [2021-02-22 00:44:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-22 00:44:10,117 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:10,118 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, 1, 1, 1, 1, 1] [2021-02-22 00:44:10,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 00:44:10,118 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:10,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash 539368296, now seen corresponding path program 1 times [2021-02-22 00:44:10,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:10,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396577885] [2021-02-22 00:44:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:10,122 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,513 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:10,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:44:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-22 00:44:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-22 00:44:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:10,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:10,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:10,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:10,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396577885] [2021-02-22 00:44:10,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:10,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:44:10,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095753322] [2021-02-22 00:44:10,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:44:10,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:10,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:44:10,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:44:10,778 INFO L87 Difference]: Start difference. First operand 550 states and 599 transitions. Second operand 10 states. [2021-02-22 00:44:11,487 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:13,223 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:13,622 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:13,978 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:14,357 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:14,748 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:15,172 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:15,571 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:16,021 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:17,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:17,301 INFO L93 Difference]: Finished difference Result 707 states and 821 transitions. [2021-02-22 00:44:17,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-22 00:44:17,301 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2021-02-22 00:44:17,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:17,306 INFO L225 Difference]: With dead ends: 707 [2021-02-22 00:44:17,306 INFO L226 Difference]: Without dead ends: 704 [2021-02-22 00:44:17,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-22 00:44:17,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-02-22 00:44:17,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 550. [2021-02-22 00:44:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2021-02-22 00:44:17,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 598 transitions. [2021-02-22 00:44:17,563 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 598 transitions. Word has length 199 [2021-02-22 00:44:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:17,564 INFO L480 AbstractCegarLoop]: Abstraction has 550 states and 598 transitions. [2021-02-22 00:44:17,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:44:17,564 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 598 transitions. [2021-02-22 00:44:17,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-22 00:44:17,568 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:17,568 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, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:17,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 00:44:17,568 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:17,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:17,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1624528255, now seen corresponding path program 1 times [2021-02-22 00:44:17,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:17,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371768626] [2021-02-22 00:44:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:17,572 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:17,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:17,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:17,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:17,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:17,938 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:17,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:17,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:17,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:17,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:17,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:17,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:17,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:17,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:17,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:17,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:17,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:17,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:17,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:17,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:17,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:17,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:17,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:17,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:44:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:18,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:18,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:18,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:18,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:18,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:18,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:18,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:18,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:18,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:18,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-22 00:44:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:18,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-22 00:44:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:18,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:18,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:18,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371768626] [2021-02-22 00:44:18,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:18,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:44:18,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846114278] [2021-02-22 00:44:18,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:44:18,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:18,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:44:18,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:44:18,168 INFO L87 Difference]: Start difference. First operand 550 states and 598 transitions. Second operand 10 states. [2021-02-22 00:44:19,560 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:19,941 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:44:20,345 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:44:20,728 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:21,106 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:21,462 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:22,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:22,849 INFO L93 Difference]: Finished difference Result 1149 states and 1325 transitions. [2021-02-22 00:44:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 00:44:22,850 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2021-02-22 00:44:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:22,858 INFO L225 Difference]: With dead ends: 1149 [2021-02-22 00:44:22,859 INFO L226 Difference]: Without dead ends: 714 [2021-02-22 00:44:22,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-22 00:44:22,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-02-22 00:44:23,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 566. [2021-02-22 00:44:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2021-02-22 00:44:23,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 614 transitions. [2021-02-22 00:44:23,152 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 614 transitions. Word has length 200 [2021-02-22 00:44:23,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:23,153 INFO L480 AbstractCegarLoop]: Abstraction has 566 states and 614 transitions. [2021-02-22 00:44:23,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:44:23,153 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 614 transitions. [2021-02-22 00:44:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-22 00:44:23,156 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:23,157 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, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:23,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 00:44:23,157 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:23,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:23,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1696568865, now seen corresponding path program 1 times [2021-02-22 00:44:23,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:23,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726884984] [2021-02-22 00:44:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:23,162 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:23,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:23,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,591 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:23,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:23,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:23,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:44:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:23,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:23,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:23,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:23,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-22 00:44:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-22 00:44:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:23,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:23,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:23,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726884984] [2021-02-22 00:44:23,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:23,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 00:44:23,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470378638] [2021-02-22 00:44:23,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 00:44:23,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:23,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 00:44:23,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-22 00:44:23,905 INFO L87 Difference]: Start difference. First operand 566 states and 614 transitions. Second operand 13 states. [2021-02-22 00:44:24,657 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:25,063 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:44:25,460 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:25,844 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:26,212 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:27,176 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:27,558 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:27,953 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:28,357 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:28,729 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:30,430 INFO L93 Difference]: Finished difference Result 1187 states and 1379 transitions. [2021-02-22 00:44:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-22 00:44:30,431 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2021-02-22 00:44:30,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:30,436 INFO L225 Difference]: With dead ends: 1187 [2021-02-22 00:44:30,436 INFO L226 Difference]: Without dead ends: 736 [2021-02-22 00:44:30,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-22 00:44:30,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-02-22 00:44:30,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 578. [2021-02-22 00:44:30,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2021-02-22 00:44:30,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 626 transitions. [2021-02-22 00:44:30,710 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 626 transitions. Word has length 200 [2021-02-22 00:44:30,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:30,711 INFO L480 AbstractCegarLoop]: Abstraction has 578 states and 626 transitions. [2021-02-22 00:44:30,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 00:44:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 626 transitions. [2021-02-22 00:44:30,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-22 00:44:30,713 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:30,713 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, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:30,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 00:44:30,713 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:30,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:30,714 INFO L82 PathProgramCache]: Analyzing trace with hash 56274884, now seen corresponding path program 1 times [2021-02-22 00:44:30,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:30,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154822477] [2021-02-22 00:44:30,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:30,717 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:30,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:30,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:30,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:30,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:30,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:30,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:30,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:30,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:30,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:30,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:44:30,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:30,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,092 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:31,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:44:31,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:44:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:31,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:31,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:31,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-22 00:44:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-22 00:44:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:31,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:31,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:31,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154822477] [2021-02-22 00:44:31,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:31,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 00:44:31,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189855114] [2021-02-22 00:44:31,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 00:44:31,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:31,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 00:44:31,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-22 00:44:31,327 INFO L87 Difference]: Start difference. First operand 578 states and 626 transitions. Second operand 7 states. [2021-02-22 00:44:31,998 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:32,732 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:35,704 INFO L93 Difference]: Finished difference Result 1632 states and 1943 transitions. [2021-02-22 00:44:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-22 00:44:35,705 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2021-02-22 00:44:35,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:35,713 INFO L225 Difference]: With dead ends: 1632 [2021-02-22 00:44:35,713 INFO L226 Difference]: Without dead ends: 1169 [2021-02-22 00:44:35,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-22 00:44:35,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-02-22 00:44:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 996. [2021-02-22 00:44:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 996 states. [2021-02-22 00:44:36,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1118 transitions. [2021-02-22 00:44:36,131 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1118 transitions. Word has length 200 [2021-02-22 00:44:36,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:36,132 INFO L480 AbstractCegarLoop]: Abstraction has 996 states and 1118 transitions. [2021-02-22 00:44:36,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 00:44:36,132 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1118 transitions. [2021-02-22 00:44:36,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-22 00:44:36,134 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:36,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:36,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 00:44:36,135 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:36,136 INFO L82 PathProgramCache]: Analyzing trace with hash -726164035, now seen corresponding path program 1 times [2021-02-22 00:44:36,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:36,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341423837] [2021-02-22 00:44:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:36,139 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:44:36,207 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:44:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:44:36,269 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:44:36,479 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:44:36,479 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:44:36,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 00:44:36,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:44:36 BoogieIcfgContainer [2021-02-22 00:44:36,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:44:36,505 INFO L168 Benchmark]: Toolchain (without parser) took 51435.66 ms. Allocated memory was 156.2 MB in the beginning and 584.1 MB in the end (delta: 427.8 MB). Free memory was 131.9 MB in the beginning and 258.2 MB in the end (delta: -126.3 MB). Peak memory consumption was 303.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:44:36,505 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 156.2 MB. Free memory is still 129.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:44:36,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.03 ms. Allocated memory is still 156.2 MB. Free memory was 130.7 MB in the beginning and 109.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-22 00:44:36,506 INFO L168 Benchmark]: Boogie Preprocessor took 111.55 ms. Allocated memory is still 156.2 MB. Free memory was 109.9 MB in the beginning and 106.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 00:44:36,506 INFO L168 Benchmark]: RCFGBuilder took 1653.37 ms. Allocated memory was 156.2 MB in the beginning and 194.0 MB in the end (delta: 37.7 MB). Free memory was 106.1 MB in the beginning and 157.7 MB in the end (delta: -51.6 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:44:36,506 INFO L168 Benchmark]: TraceAbstraction took 48974.81 ms. Allocated memory was 194.0 MB in the beginning and 584.1 MB in the end (delta: 390.1 MB). Free memory was 157.7 MB in the beginning and 258.2 MB in the end (delta: -100.5 MB). Peak memory consumption was 290.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:44:36,507 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 156.2 MB. Free memory is still 129.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 670.03 ms. Allocated memory is still 156.2 MB. Free memory was 130.7 MB in the beginning and 109.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.55 ms. Allocated memory is still 156.2 MB. Free memory was 109.9 MB in the beginning and 106.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1653.37 ms. Allocated memory was 156.2 MB in the beginning and 194.0 MB in the end (delta: 37.7 MB). Free memory was 106.1 MB in the beginning and 157.7 MB in the end (delta: -51.6 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48974.81 ms. Allocated memory was 194.0 MB in the beginning and 584.1 MB in the end (delta: 390.1 MB). Free memory was 157.7 MB in the beginning and 258.2 MB in the end (delta: -100.5 MB). Peak memory consumption was 290.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: 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; [L408] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L489] int retValue_acc ; [L490] int tmp ; [L494] FCALL select_helpers() [L495] FCALL select_features() [L496] CALL, EXPR valid_product() [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L496] RET, EXPR valid_product() [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L500] FCALL setup() [L501] CALL runTest() [L480] CALL test() [L769] int splverifierCounter ; [L770] int tmp ; [L771] int tmp___0 ; [L772] int tmp___1 ; [L773] int tmp___2 ; [L776] splverifierCounter = 0 [L778] COND TRUE 1 [L780] COND TRUE splverifierCounter < 4 [L786] tmp = __VERIFIER_nondet_int() [L788] COND TRUE \read(tmp) [L790] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L790] RET waterRise() [L796] tmp___0 = __VERIFIER_nondet_int() [L798] COND TRUE \read(tmp___0) [L800] CALL changeMethaneLevel() [L864] COND FALSE !(\read(methaneLevelCritical)) [L867] methaneLevelCritical = 1 [L800] RET changeMethaneLevel() [L806] tmp___2 = __VERIFIER_nondet_int() [L808] COND TRUE \read(tmp___2) [L821] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L606] CALL processEnvironment() [L652] int tmp ; [L655] COND FALSE !(\read(pumpRunning)) [L670] CALL processEnvironment__wrappee__highWaterSensor() [L626] int tmp ; [L629] COND TRUE ! pumpRunning [L631] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L914] int retValue_acc ; [L917] COND FALSE !(waterLevel < 2) [L921] retValue_acc = 0 [L922] return (retValue_acc); [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND FALSE !(\read(tmp)) [L760] tmp___0 = 1 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L631] RET, EXPR isHighWaterLevel() [L631] tmp = isHighWaterLevel() [L633] COND TRUE \read(tmp) [L635] CALL activatePump() [L680] pumpRunning = 1 [L635] RET activatePump() [L670] RET processEnvironment__wrappee__highWaterSensor() [L606] RET processEnvironment() [L612] CALL __utac_acc__Specification1_spec__1() [L516] int tmp ; [L517] int tmp___0 ; [L521] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L521] RET, EXPR isMethaneLevelCritical() [L521] tmp = isMethaneLevelCritical() [L523] COND TRUE \read(tmp) [L525] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); [L525] RET, EXPR isPumpRunning() [L525] tmp___0 = isPumpRunning() [L527] COND TRUE \read(tmp___0) [L529] CALL __automaton_fail() [L545] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 39.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2170 SDtfs, 3625 SDslu, 3944 SDs, 0 SdLazy, 7540 SolverSat, 1055 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 230 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=996occurred 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: 2.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 892 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...