/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-36cd7be [2021-02-24 03:09:08,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:09:08,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:09:08,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:09:08,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:09:09,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:09:09,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:09:09,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:09:09,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:09:09,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:09:09,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:09:09,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:09:09,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:09:09,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:09:09,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:09:09,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:09:09,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:09:09,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:09:09,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:09:09,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:09:09,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:09:09,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:09:09,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:09:09,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:09:09,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:09:09,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:09:09,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:09:09,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:09:09,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:09:09,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:09:09,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:09:09,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:09:09,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:09:09,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:09:09,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:09:09,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:09:09,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:09:09,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:09:09,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:09:09,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:09:09,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:09:09,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:09:09,114 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:09:09,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:09:09,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:09:09,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:09:09,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:09:09,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:09:09,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:09:09,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:09:09,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:09:09,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:09:09,118 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:09:09,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:09:09,119 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:09:09,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:09:09,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:09:09,119 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:09:09,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:09:09,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:09:09,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:09:09,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:09:09,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:09:09,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:09:09,121 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:09:09,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:09:09,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:09:09,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:09:09,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:09:09,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:09:09,537 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:09:09,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2021-02-24 03:09:09,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93f1d8a9/cd745d238e3d4d9886b3875b7522afef/FLAG2a09a18c3 [2021-02-24 03:09:10,354 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:09:10,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2021-02-24 03:09:10,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93f1d8a9/cd745d238e3d4d9886b3875b7522afef/FLAG2a09a18c3 [2021-02-24 03:09:10,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93f1d8a9/cd745d238e3d4d9886b3875b7522afef [2021-02-24 03:09:10,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:09:10,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:09:10,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:09:10,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:09:10,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:09:10,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:09:10" (1/1) ... [2021-02-24 03:09:10,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48542a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:10, skipping insertion in model container [2021-02-24 03:09:10,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:09:10" (1/1) ... [2021-02-24 03:09:10,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:09:10,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:09:11,107 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] [2021-02-24 03:09:11,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:09:11,194 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:09:11,250 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] [2021-02-24 03:09:11,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:09:11,311 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:09:11,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11 WrapperNode [2021-02-24 03:09:11,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:09:11,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:09:11,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:09:11,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:09:11,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (1/1) ... [2021-02-24 03:09:11,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (1/1) ... [2021-02-24 03:09:11,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (1/1) ... [2021-02-24 03:09:11,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (1/1) ... [2021-02-24 03:09:11,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (1/1) ... [2021-02-24 03:09:11,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (1/1) ... [2021-02-24 03:09:11,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (1/1) ... [2021-02-24 03:09:11,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:09:11,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:09:11,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:09:11,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:09:11,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (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 [2021-02-24 03:09:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:09:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:09:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:09:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:09:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:09:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:09:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:09:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:09:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:09:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:09:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:09:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:09:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:09:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:09:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:09:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-24 03:09:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:09:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:09:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:09:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:09:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:09:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:09:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:09:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:09:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:09:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:09:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:09:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:09:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:09:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:09:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:09:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:09:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:09:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:09:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:09:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:09:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:09:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:09:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:09:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:09:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:09:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:09:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:09:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:09:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:09:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:09:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:09:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:09:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:09:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:09:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:09:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:09:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:09:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:09:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:09:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:09:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:09:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:09:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:09:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:09:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:09:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:09:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:09:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:09:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:09:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:09:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:09:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:09:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:09:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:09:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:09:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:09:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:09:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:09:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:09:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:09:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-24 03:09:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:09:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:09:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:09:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:09:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:09:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:09:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:09:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:09:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:09:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:09:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:09:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:09:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:09:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:09:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:09:12,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:09:12,767 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:09:12,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:09:12 BoogieIcfgContainer [2021-02-24 03:09:12,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:09:12,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:09:12,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:09:12,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:09:12,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:09:10" (1/3) ... [2021-02-24 03:09:12,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1d3c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:09:12, skipping insertion in model container [2021-02-24 03:09:12,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:09:11" (2/3) ... [2021-02-24 03:09:12,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1d3c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:09:12, skipping insertion in model container [2021-02-24 03:09:12,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:09:12" (3/3) ... [2021-02-24 03:09:12,781 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2021-02-24 03:09:12,788 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:09:12,794 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:09:12,814 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:09:12,848 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:09:12,848 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:09:12,849 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:09:12,849 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:09:12,849 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:09:12,850 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:09:12,850 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:09:12,850 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:09:12,883 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states. [2021-02-24 03:09:12,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:09:12,905 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:12,906 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] [2021-02-24 03:09:12,907 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:12,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:12,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1627698146, now seen corresponding path program 1 times [2021-02-24 03:09:12,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:12,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703072355] [2021-02-24 03:09:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:13,010 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:13,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:13,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:13,772 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:13,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:13,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:13,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:13,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:13,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:13,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:13,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:13,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:13,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:13,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:13,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:13,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:13,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:09:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:13,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:13,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:14,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703072355] [2021-02-24 03:09:14,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:14,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:09:14,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828539834] [2021-02-24 03:09:14,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:09:14,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:14,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:09:14,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:09:14,061 INFO L87 Difference]: Start difference. First operand 307 states. Second operand 3 states. [2021-02-24 03:09:15,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:15,743 INFO L93 Difference]: Finished difference Result 473 states and 564 transitions. [2021-02-24 03:09:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:09:15,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:09:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:15,762 INFO L225 Difference]: With dead ends: 473 [2021-02-24 03:09:15,762 INFO L226 Difference]: Without dead ends: 296 [2021-02-24 03:09:15,767 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 [2021-02-24 03:09:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-02-24 03:09:15,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2021-02-24 03:09:15,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2021-02-24 03:09:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions. [2021-02-24 03:09:15,939 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 147 [2021-02-24 03:09:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:15,940 INFO L480 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions. [2021-02-24 03:09:15,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:09:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions. [2021-02-24 03:09:15,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:09:15,944 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:15,945 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] [2021-02-24 03:09:15,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:09:15,945 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:15,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:15,946 INFO L82 PathProgramCache]: Analyzing trace with hash -2118354520, now seen corresponding path program 1 times [2021-02-24 03:09:15,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:15,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038006454] [2021-02-24 03:09:15,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:15,951 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:16,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:16,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,358 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:16,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:16,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:16,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:16,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:16,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:16,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:09:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:16,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:09:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:16,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:16,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:16,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038006454] [2021-02-24 03:09:16,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:16,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:09:16,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186120772] [2021-02-24 03:09:16,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:09:16,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:16,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:09:16,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:09:16,458 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 4 states. [2021-02-24 03:09:17,198 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:18,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:18,222 INFO L93 Difference]: Finished difference Result 389 states and 438 transitions. [2021-02-24 03:09:18,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:09:18,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:09:18,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:18,227 INFO L225 Difference]: With dead ends: 389 [2021-02-24 03:09:18,227 INFO L226 Difference]: Without dead ends: 279 [2021-02-24 03:09:18,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:09:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-24 03:09:18,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2021-02-24 03:09:18,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2021-02-24 03:09:18,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2021-02-24 03:09:18,344 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 148 [2021-02-24 03:09:18,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:18,345 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2021-02-24 03:09:18,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:09:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2021-02-24 03:09:18,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 03:09:18,348 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:18,348 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] [2021-02-24 03:09:18,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:09:18,349 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:18,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:18,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1206642817, now seen corresponding path program 1 times [2021-02-24 03:09:18,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:18,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210368076] [2021-02-24 03:09:18,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:18,354 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:18,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:18,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:18,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:18,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,796 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:18,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:09:18,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:18,941 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:09:18,947 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:09:18,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:09:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:18,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:09:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:18,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:18,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:19,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210368076] [2021-02-24 03:09:19,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:19,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:09:19,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778041405] [2021-02-24 03:09:19,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:09:19,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:19,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:09:19,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:09:19,049 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 9 states. [2021-02-24 03:09:19,708 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:20,157 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:20,526 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:09:20,894 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:21,258 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:21,637 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:23,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:23,161 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2021-02-24 03:09:23,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:09:23,162 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-24 03:09:23,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:23,165 INFO L225 Difference]: With dead ends: 409 [2021-02-24 03:09:23,165 INFO L226 Difference]: Without dead ends: 279 [2021-02-24 03:09:23,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-24 03:09:23,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-24 03:09:23,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2021-02-24 03:09:23,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2021-02-24 03:09:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2021-02-24 03:09:23,285 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 157 [2021-02-24 03:09:23,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:23,285 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2021-02-24 03:09:23,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:09:23,286 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2021-02-24 03:09:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-02-24 03:09:23,288 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:23,288 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] [2021-02-24 03:09:23,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:09:23,289 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:23,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:23,289 INFO L82 PathProgramCache]: Analyzing trace with hash -2129969252, now seen corresponding path program 1 times [2021-02-24 03:09:23,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:23,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103105431] [2021-02-24 03:09:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:23,293 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,737 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:23,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:09:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:23,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:23,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-24 03:09:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-24 03:09:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:23,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:23,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:23,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103105431] [2021-02-24 03:09:23,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:23,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:09:23,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464295660] [2021-02-24 03:09:23,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:09:23,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:23,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:09:23,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:09:23,914 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand 6 states. [2021-02-24 03:09:24,492 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:26,080 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:26,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:26,834 INFO L93 Difference]: Finished difference Result 540 states and 618 transitions. [2021-02-24 03:09:26,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:09:26,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2021-02-24 03:09:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:26,841 INFO L225 Difference]: With dead ends: 540 [2021-02-24 03:09:26,841 INFO L226 Difference]: Without dead ends: 410 [2021-02-24 03:09:26,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:09:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-02-24 03:09:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 351. [2021-02-24 03:09:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2021-02-24 03:09:27,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 378 transitions. [2021-02-24 03:09:27,003 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 378 transitions. Word has length 170 [2021-02-24 03:09:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:27,005 INFO L480 AbstractCegarLoop]: Abstraction has 351 states and 378 transitions. [2021-02-24 03:09:27,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:09:27,006 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 378 transitions. [2021-02-24 03:09:27,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-02-24 03:09:27,008 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:27,009 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] [2021-02-24 03:09:27,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:09:27,009 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:27,010 INFO L82 PathProgramCache]: Analyzing trace with hash -711714552, now seen corresponding path program 1 times [2021-02-24 03:09:27,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:27,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697138663] [2021-02-24 03:09:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:27,013 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,378 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:27,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:09:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 03:09:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:27,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-24 03:09:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:27,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:27,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:27,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:27,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697138663] [2021-02-24 03:09:27,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:27,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:09:27,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286204697] [2021-02-24 03:09:27,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:09:27,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:27,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:09:27,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:09:27,611 INFO L87 Difference]: Start difference. First operand 351 states and 378 transitions. Second operand 9 states. [2021-02-24 03:09:28,187 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:29,787 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:30,166 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:30,507 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:30,872 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:31,211 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:31,542 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:31,879 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:32,359 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:33,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:33,606 INFO L93 Difference]: Finished difference Result 877 states and 1013 transitions. [2021-02-24 03:09:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:09:33,609 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2021-02-24 03:09:33,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:33,616 INFO L225 Difference]: With dead ends: 877 [2021-02-24 03:09:33,616 INFO L226 Difference]: Without dead ends: 641 [2021-02-24 03:09:33,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-02-24 03:09:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2021-02-24 03:09:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 550. [2021-02-24 03:09:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2021-02-24 03:09:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 599 transitions. [2021-02-24 03:09:33,857 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 599 transitions. Word has length 194 [2021-02-24 03:09:33,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:33,860 INFO L480 AbstractCegarLoop]: Abstraction has 550 states and 599 transitions. [2021-02-24 03:09:33,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:09:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 599 transitions. [2021-02-24 03:09:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-24 03:09:33,863 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:33,863 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] [2021-02-24 03:09:33,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:09:33,864 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:33,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:33,864 INFO L82 PathProgramCache]: Analyzing trace with hash 539368296, now seen corresponding path program 1 times [2021-02-24 03:09:33,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:33,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805479408] [2021-02-24 03:09:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:33,867 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:33,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:33,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:33,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:33,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:33,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:33,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:33,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:33,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:33,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:33,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,326 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:34,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:34,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:09:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:34,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:34,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 03:09:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-24 03:09:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:34,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:34,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:34,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:34,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:34,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805479408] [2021-02-24 03:09:34,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:34,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:09:34,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173290957] [2021-02-24 03:09:34,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:09:34,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:34,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:09:34,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:09:34,536 INFO L87 Difference]: Start difference. First operand 550 states and 599 transitions. Second operand 10 states. [2021-02-24 03:09:35,158 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:36,765 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:37,140 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:37,474 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:37,836 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:38,202 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:38,590 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:09:38,961 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:39,397 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:40,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:40,573 INFO L93 Difference]: Finished difference Result 707 states and 821 transitions. [2021-02-24 03:09:40,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 03:09:40,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2021-02-24 03:09:40,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:40,579 INFO L225 Difference]: With dead ends: 707 [2021-02-24 03:09:40,580 INFO L226 Difference]: Without dead ends: 704 [2021-02-24 03:09:40,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-24 03:09:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-02-24 03:09:40,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 550. [2021-02-24 03:09:40,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2021-02-24 03:09:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 598 transitions. [2021-02-24 03:09:40,821 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 598 transitions. Word has length 199 [2021-02-24 03:09:40,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:40,822 INFO L480 AbstractCegarLoop]: Abstraction has 550 states and 598 transitions. [2021-02-24 03:09:40,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:09:40,822 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 598 transitions. [2021-02-24 03:09:40,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-24 03:09:40,824 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:40,824 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] [2021-02-24 03:09:40,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:09:40,825 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:40,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:40,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1624528255, now seen corresponding path program 1 times [2021-02-24 03:09:40,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:40,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658853864] [2021-02-24 03:09:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:40,829 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:40,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:40,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:40,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:40,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,174 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:41,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:09:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:41,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:41,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:41,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:41,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:41,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-24 03:09:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 03:09:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:41,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:41,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:41,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658853864] [2021-02-24 03:09:41,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:41,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:09:41,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919459245] [2021-02-24 03:09:41,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:09:41,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:41,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:09:41,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:09:41,495 INFO L87 Difference]: Start difference. First operand 550 states and 598 transitions. Second operand 10 states. [2021-02-24 03:09:42,973 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:43,352 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:09:43,771 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:09:44,169 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:44,579 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:44,960 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:46,384 INFO L93 Difference]: Finished difference Result 1149 states and 1325 transitions. [2021-02-24 03:09:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:09:46,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2021-02-24 03:09:46,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:46,391 INFO L225 Difference]: With dead ends: 1149 [2021-02-24 03:09:46,391 INFO L226 Difference]: Without dead ends: 714 [2021-02-24 03:09:46,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-24 03:09:46,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-02-24 03:09:46,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 566. [2021-02-24 03:09:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2021-02-24 03:09:46,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 614 transitions. [2021-02-24 03:09:46,612 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 614 transitions. Word has length 200 [2021-02-24 03:09:46,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:46,613 INFO L480 AbstractCegarLoop]: Abstraction has 566 states and 614 transitions. [2021-02-24 03:09:46,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:09:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 614 transitions. [2021-02-24 03:09:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-24 03:09:46,615 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:46,615 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] [2021-02-24 03:09:46,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:09:46,616 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:46,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:46,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1696568865, now seen corresponding path program 1 times [2021-02-24 03:09:46,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:46,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60758051] [2021-02-24 03:09:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:46,620 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:46,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:46,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:46,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:46,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:46,982 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:46,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:47,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:09:47,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:09:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:47,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:47,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:47,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:47,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-24 03:09:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 03:09:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:47,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:47,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:47,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60758051] [2021-02-24 03:09:47,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:47,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 03:09:47,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586289651] [2021-02-24 03:09:47,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 03:09:47,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:47,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 03:09:47,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-24 03:09:47,256 INFO L87 Difference]: Start difference. First operand 566 states and 614 transitions. Second operand 13 states. [2021-02-24 03:09:48,010 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:09:48,405 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:09:48,811 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:49,196 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:49,567 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:50,549 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:50,944 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:51,347 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:51,760 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:09:52,141 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:09:53,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:53,838 INFO L93 Difference]: Finished difference Result 1187 states and 1379 transitions. [2021-02-24 03:09:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 03:09:53,838 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2021-02-24 03:09:53,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:53,847 INFO L225 Difference]: With dead ends: 1187 [2021-02-24 03:09:53,847 INFO L226 Difference]: Without dead ends: 736 [2021-02-24 03:09:53,850 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 [2021-02-24 03:09:53,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-02-24 03:09:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 578. [2021-02-24 03:09:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2021-02-24 03:09:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 626 transitions. [2021-02-24 03:09:54,089 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 626 transitions. Word has length 200 [2021-02-24 03:09:54,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:54,089 INFO L480 AbstractCegarLoop]: Abstraction has 578 states and 626 transitions. [2021-02-24 03:09:54,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 03:09:54,089 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 626 transitions. [2021-02-24 03:09:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-24 03:09:54,092 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:54,092 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] [2021-02-24 03:09:54,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 03:09:54,092 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:54,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:54,093 INFO L82 PathProgramCache]: Analyzing trace with hash 56274884, now seen corresponding path program 1 times [2021-02-24 03:09:54,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:54,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130964422] [2021-02-24 03:09:54,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:54,097 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:54,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:54,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:54,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:54,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:09:54,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,473 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:09:54,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:09:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:09:54,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:09:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:09:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:09:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:09:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:09:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:09:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:09:54,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:54,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:09:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:54,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:09:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:09:54,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:09:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-24 03:09:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 03:09:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:09:54,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:09:54,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:09:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:09:54,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130964422] [2021-02-24 03:09:54,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:09:54,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 03:09:54,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4772691] [2021-02-24 03:09:54,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 03:09:54,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:09:54,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 03:09:54,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-24 03:09:54,728 INFO L87 Difference]: Start difference. First operand 578 states and 626 transitions. Second operand 7 states. [2021-02-24 03:09:55,334 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:56,064 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:09:58,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:09:58,954 INFO L93 Difference]: Finished difference Result 1632 states and 1943 transitions. [2021-02-24 03:09:58,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:09:58,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2021-02-24 03:09:58,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:09:58,963 INFO L225 Difference]: With dead ends: 1632 [2021-02-24 03:09:58,963 INFO L226 Difference]: Without dead ends: 1169 [2021-02-24 03:09:58,965 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 [2021-02-24 03:09:58,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-02-24 03:09:59,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 996. [2021-02-24 03:09:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 996 states. [2021-02-24 03:09:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1118 transitions. [2021-02-24 03:09:59,468 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1118 transitions. Word has length 200 [2021-02-24 03:09:59,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:09:59,469 INFO L480 AbstractCegarLoop]: Abstraction has 996 states and 1118 transitions. [2021-02-24 03:09:59,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 03:09:59,469 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1118 transitions. [2021-02-24 03:09:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-24 03:09:59,472 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:09:59,472 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] [2021-02-24 03:09:59,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 03:09:59,472 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:09:59,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:09:59,473 INFO L82 PathProgramCache]: Analyzing trace with hash -726164035, now seen corresponding path program 1 times [2021-02-24 03:09:59,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:09:59,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029898809] [2021-02-24 03:09:59,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:09:59,476 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:09:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:09:59,545 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:09:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:09:59,606 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:09:59,863 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:09:59,863 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:09:59,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 03:09:59,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:09:59 BoogieIcfgContainer [2021-02-24 03:09:59,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:09:59,890 INFO L168 Benchmark]: Toolchain (without parser) took 49234.51 ms. Allocated memory was 151.0 MB in the beginning and 676.3 MB in the end (delta: 525.3 MB). Free memory was 126.2 MB in the beginning and 412.1 MB in the end (delta: -285.8 MB). Peak memory consumption was 240.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:59,890 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:09:59,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.50 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:59,890 INFO L168 Benchmark]: Boogie Preprocessor took 157.46 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 132.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:59,891 INFO L168 Benchmark]: RCFGBuilder took 1301.00 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 90.5 MB in the end (delta: 41.9 MB). Peak memory consumption was 66.5 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:59,891 INFO L168 Benchmark]: TraceAbstraction took 47114.99 ms. Allocated memory was 151.0 MB in the beginning and 676.3 MB in the end (delta: 525.3 MB). Free memory was 89.9 MB in the beginning and 412.1 MB in the end (delta: -322.1 MB). Peak memory consumption was 203.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:09:59,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 637.50 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 157.46 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 132.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1301.00 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 90.5 MB in the end (delta: 41.9 MB). Peak memory consumption was 66.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 47114.99 ms. Allocated memory was 151.0 MB in the beginning and 676.3 MB in the end (delta: 525.3 MB). Free memory was 89.9 MB in the beginning and 412.1 MB in the end (delta: -322.1 MB). Peak memory consumption was 203.2 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: 47.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 38.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2169 SDtfs, 3625 SDslu, 3940 SDs, 0 SdLazy, 7537 SolverSat, 1055 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 230 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 19.1s 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: 1.9s 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...