/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 15:26:03,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 15:26:03,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 15:26:04,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 15:26:04,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 15:26:04,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 15:26:04,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 15:26:04,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 15:26:04,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 15:26:04,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 15:26:04,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 15:26:04,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 15:26:04,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 15:26:04,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 15:26:04,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 15:26:04,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 15:26:04,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 15:26:04,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 15:26:04,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 15:26:04,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 15:26:04,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 15:26:04,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 15:26:04,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 15:26:04,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 15:26:04,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 15:26:04,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 15:26:04,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 15:26:04,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 15:26:04,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 15:26:04,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 15:26:04,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 15:26:04,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 15:26:04,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 15:26:04,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 15:26:04,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 15:26:04,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 15:26:04,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 15:26:04,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 15:26:04,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 15:26:04,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 15:26:04,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 15:26:04,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 15:26:04,180 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 15:26:04,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 15:26:04,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 15:26:04,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 15:26:04,186 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 15:26:04,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 15:26:04,186 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 15:26:04,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 15:26:04,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 15:26:04,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 15:26:04,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 15:26:04,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 15:26:04,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 15:26:04,189 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 15:26:04,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 15:26:04,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 15:26:04,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 15:26:04,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 15:26:04,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 15:26:04,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 15:26:04,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:26:04,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 15:26:04,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 15:26:04,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 15:26:04,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 15:26:04,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 15:26:04,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 15:26:04,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 15:26:04,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 15:26:04,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 15:26:04,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 15:26:04,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 15:26:04,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 15:26:04,663 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 15:26:04,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2021-02-21 15:26:04,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0953fe7/92d8dca5d2604cbba5545125a8ef5c8c/FLAG8fa056d64 [2021-02-21 15:26:05,371 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 15:26:05,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2021-02-21 15:26:05,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0953fe7/92d8dca5d2604cbba5545125a8ef5c8c/FLAG8fa056d64 [2021-02-21 15:26:05,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0953fe7/92d8dca5d2604cbba5545125a8ef5c8c [2021-02-21 15:26:05,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 15:26:05,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 15:26:05,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 15:26:05,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 15:26:05,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 15:26:05,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:26:05" (1/1) ... [2021-02-21 15:26:05,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cfbc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:05, skipping insertion in model container [2021-02-21 15:26:05,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:26:05" (1/1) ... [2021-02-21 15:26:05,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 15:26:05,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 15:26:06,066 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_product55.cil.c[7599,7612] [2021-02-21 15:26:06,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:26:06,146 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 15:26:06,203 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_product55.cil.c[7599,7612] [2021-02-21 15:26:06,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:26:06,289 INFO L208 MainTranslator]: Completed translation [2021-02-21 15:26:06,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06 WrapperNode [2021-02-21 15:26:06,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 15:26:06,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 15:26:06,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 15:26:06,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 15:26:06,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (1/1) ... [2021-02-21 15:26:06,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (1/1) ... [2021-02-21 15:26:06,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (1/1) ... [2021-02-21 15:26:06,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (1/1) ... [2021-02-21 15:26:06,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (1/1) ... [2021-02-21 15:26:06,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (1/1) ... [2021-02-21 15:26:06,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (1/1) ... [2021-02-21 15:26:06,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 15:26:06,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 15:26:06,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 15:26:06,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 15:26:06,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (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 [2021-02-21 15:26:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 15:26:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 15:26:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 15:26:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 15:26:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 15:26:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 15:26:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 15:26:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 15:26:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 15:26:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 15:26:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-21 15:26:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-21 15:26:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-21 15:26:06,531 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 15:26:06,531 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 15:26:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 15:26:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 15:26:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 15:26:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 15:26:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-21 15:26:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-21 15:26:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-21 15:26:06,533 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 15:26:06,533 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 15:26:06,533 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 15:26:06,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 15:26:06,533 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 15:26:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 15:26:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-21 15:26:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-21 15:26:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 15:26:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 15:26:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 15:26:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 15:26:06,535 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 15:26:06,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 15:26:06,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-21 15:26:06,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 15:26:06,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 15:26:06,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 15:26:06,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 15:26:06,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 15:26:06,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 15:26:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 15:26:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 15:26:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 15:26:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 15:26:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 15:26:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 15:26:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 15:26:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 15:26:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 15:26:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 15:26:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 15:26:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 15:26:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-21 15:26:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 15:26:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 15:26:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 15:26:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 15:26:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 15:26:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 15:26:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-21 15:26:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-21 15:26:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 15:26:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 15:26:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 15:26:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 15:26:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-21 15:26:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 15:26:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-21 15:26:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-21 15:26:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-21 15:26:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-21 15:26:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-21 15:26:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 15:26:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 15:26:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 15:26:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 15:26:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 15:26:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 15:26:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 15:26:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 15:26:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 15:26:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 15:26:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 15:26:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 15:26:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 15:26:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 15:26:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 15:26:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 15:26:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 15:26:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 15:26:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 15:26:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 15:26:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 15:26:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 15:26:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 15:26:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 15:26:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 15:26:07,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 15:26:07,969 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 15:26:07,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:26:07 BoogieIcfgContainer [2021-02-21 15:26:07,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 15:26:07,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 15:26:07,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 15:26:07,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 15:26:07,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:26:05" (1/3) ... [2021-02-21 15:26:07,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bfb019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:26:07, skipping insertion in model container [2021-02-21 15:26:07,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:06" (2/3) ... [2021-02-21 15:26:07,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bfb019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:26:07, skipping insertion in model container [2021-02-21 15:26:07,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:26:07" (3/3) ... [2021-02-21 15:26:07,989 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2021-02-21 15:26:07,997 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 15:26:08,003 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 15:26:08,025 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 15:26:08,058 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 15:26:08,058 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 15:26:08,059 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 15:26:08,059 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 15:26:08,059 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 15:26:08,059 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 15:26:08,059 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 15:26:08,059 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 15:26:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2021-02-21 15:26:08,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-21 15:26:08,094 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:08,095 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] [2021-02-21 15:26:08,096 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:08,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:08,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1892778339, now seen corresponding path program 1 times [2021-02-21 15:26:08,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:08,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175790036] [2021-02-21 15:26:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:08,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:08,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:08,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:08,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:08,992 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:26:08,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:26:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:09,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:09,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:09,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:26:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:09,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:09,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:09,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:26:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:09,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:09,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:09,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:26:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:09,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:09,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:09,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:26:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:09,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:09,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:09,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 15:26:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:09,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:09,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:09,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 15:26:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:09,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:09,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:26:09,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175790036] [2021-02-21 15:26:09,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:26:09,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 15:26:09,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504696653] [2021-02-21 15:26:09,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 15:26:09,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:26:09,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 15:26:09,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 15:26:09,131 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2021-02-21 15:26:10,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:26:10,839 INFO L93 Difference]: Finished difference Result 343 states and 450 transitions. [2021-02-21 15:26:10,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 15:26:10,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2021-02-21 15:26:10,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:26:10,866 INFO L225 Difference]: With dead ends: 343 [2021-02-21 15:26:10,867 INFO L226 Difference]: Without dead ends: 185 [2021-02-21 15:26:10,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 15:26:10,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-02-21 15:26:10,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 149. [2021-02-21 15:26:10,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2021-02-21 15:26:10,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2021-02-21 15:26:10,987 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2021-02-21 15:26:10,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:26:10,987 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2021-02-21 15:26:10,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 15:26:10,988 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2021-02-21 15:26:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-21 15:26:10,992 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:10,992 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] [2021-02-21 15:26:10,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 15:26:10,993 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:10,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:10,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1092798320, now seen corresponding path program 1 times [2021-02-21 15:26:10,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:10,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553552910] [2021-02-21 15:26:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:11,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:11,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,531 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:26:11,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:26:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:11,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:26:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:11,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:26:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:11,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:26:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:11,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:26:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:11,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-21 15:26:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:11,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-21 15:26:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:11,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:11,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:26:11,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553552910] [2021-02-21 15:26:11,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:26:11,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 15:26:11,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670642221] [2021-02-21 15:26:11,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 15:26:11,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:26:11,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 15:26:11,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 15:26:11,685 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 4 states. [2021-02-21 15:26:12,253 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:26:13,507 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2021-02-21 15:26:13,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 15:26:13,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2021-02-21 15:26:13,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:26:13,511 INFO L225 Difference]: With dead ends: 270 [2021-02-21 15:26:13,512 INFO L226 Difference]: Without dead ends: 169 [2021-02-21 15:26:13,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 15:26:13,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-02-21 15:26:13,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2021-02-21 15:26:13,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-02-21 15:26:13,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2021-02-21 15:26:13,576 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2021-02-21 15:26:13,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:26:13,576 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2021-02-21 15:26:13,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 15:26:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2021-02-21 15:26:13,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-21 15:26:13,579 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:13,579 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] [2021-02-21 15:26:13,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 15:26:13,580 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:13,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:13,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1941240547, now seen corresponding path program 1 times [2021-02-21 15:26:13,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:13,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644048168] [2021-02-21 15:26:13,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:13,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:13,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:13,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:13,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:13,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:13,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:13,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:13,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:13,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:13,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:26:13,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:13,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:26:13,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:13,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:26:13,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:13,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:14,051 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:26:14,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:26:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:14,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:14,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 15:26:14,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:26:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:14,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:14,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:14,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:26:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:14,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:14,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:14,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:26:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:14,123 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 15:26:14,124 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 15:26:14,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:26:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:14,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:14,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:14,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 15:26:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:14,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:14,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:14,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-21 15:26:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:14,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:14,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:26:14,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644048168] [2021-02-21 15:26:14,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:26:14,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 15:26:14,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741217382] [2021-02-21 15:26:14,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 15:26:14,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:26:14,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 15:26:14,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-21 15:26:14,165 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 8 states. [2021-02-21 15:26:14,698 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:26:15,164 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:15,593 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:15,980 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:16,920 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:26:19,623 INFO L93 Difference]: Finished difference Result 476 states and 596 transitions. [2021-02-21 15:26:19,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 15:26:19,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2021-02-21 15:26:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:26:19,631 INFO L225 Difference]: With dead ends: 476 [2021-02-21 15:26:19,631 INFO L226 Difference]: Without dead ends: 360 [2021-02-21 15:26:19,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-21 15:26:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-02-21 15:26:19,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 298. [2021-02-21 15:26:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-02-21 15:26:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 364 transitions. [2021-02-21 15:26:19,751 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 364 transitions. Word has length 51 [2021-02-21 15:26:19,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:26:19,751 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 364 transitions. [2021-02-21 15:26:19,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 15:26:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 364 transitions. [2021-02-21 15:26:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-21 15:26:19,755 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:19,755 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] [2021-02-21 15:26:19,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 15:26:19,756 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:19,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:19,756 INFO L82 PathProgramCache]: Analyzing trace with hash 408429461, now seen corresponding path program 1 times [2021-02-21 15:26:19,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:19,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187084023] [2021-02-21 15:26:19,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:19,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:19,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:19,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:19,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:19,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:19,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:19,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:19,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:19,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:19,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:19,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:19,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:19,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:19,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:20,206 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:26:20,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:26:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:20,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:20,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:20,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:26:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:20,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:20,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:20,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:26:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:20,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:20,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:20,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:26:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:20,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:20,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:20,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:26:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:20,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:20,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:20,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-21 15:26:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:20,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:20,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:20,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-21 15:26:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:20,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:20,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:20,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-21 15:26:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:20,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:20,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:20,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:26:20,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187084023] [2021-02-21 15:26:20,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:26:20,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 15:26:20,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723008777] [2021-02-21 15:26:20,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 15:26:20,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:26:20,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 15:26:20,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-21 15:26:20,343 INFO L87 Difference]: Start difference. First operand 298 states and 364 transitions. Second operand 8 states. [2021-02-21 15:26:20,952 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:26:22,075 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:22,698 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:26:23,203 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:23,634 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:24,529 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:26,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:26:26,064 INFO L93 Difference]: Finished difference Result 960 states and 1249 transitions. [2021-02-21 15:26:26,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 15:26:26,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-21 15:26:26,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:26:26,082 INFO L225 Difference]: With dead ends: 960 [2021-02-21 15:26:26,082 INFO L226 Difference]: Without dead ends: 686 [2021-02-21 15:26:26,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-02-21 15:26:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-02-21 15:26:26,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 551. [2021-02-21 15:26:26,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2021-02-21 15:26:26,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 678 transitions. [2021-02-21 15:26:26,250 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 678 transitions. Word has length 57 [2021-02-21 15:26:26,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:26:26,250 INFO L480 AbstractCegarLoop]: Abstraction has 551 states and 678 transitions. [2021-02-21 15:26:26,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 15:26:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 678 transitions. [2021-02-21 15:26:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-21 15:26:26,254 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:26,254 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] [2021-02-21 15:26:26,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 15:26:26,255 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:26,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:26,255 INFO L82 PathProgramCache]: Analyzing trace with hash -235213351, now seen corresponding path program 1 times [2021-02-21 15:26:26,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:26,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686305570] [2021-02-21 15:26:26,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:26,632 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:26:26,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:26:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:26:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:26,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:26:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:26,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:26:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:26,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:26:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 15:26:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:26,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 15:26:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 15:26:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:26,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-21 15:26:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:26,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:26,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:26:26,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686305570] [2021-02-21 15:26:26,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:26:26,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 15:26:26,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574090157] [2021-02-21 15:26:26,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 15:26:26,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:26:26,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 15:26:26,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-21 15:26:26,743 INFO L87 Difference]: Start difference. First operand 551 states and 678 transitions. Second operand 9 states. [2021-02-21 15:26:27,261 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:26:28,427 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:28,875 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:29,264 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:30,168 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:26:30,624 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:32,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:26:32,117 INFO L93 Difference]: Finished difference Result 1523 states and 2048 transitions. [2021-02-21 15:26:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 15:26:32,118 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2021-02-21 15:26:32,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:26:32,125 INFO L225 Difference]: With dead ends: 1523 [2021-02-21 15:26:32,126 INFO L226 Difference]: Without dead ends: 996 [2021-02-21 15:26:32,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-02-21 15:26:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2021-02-21 15:26:32,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 815. [2021-02-21 15:26:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2021-02-21 15:26:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1007 transitions. [2021-02-21 15:26:32,368 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1007 transitions. Word has length 61 [2021-02-21 15:26:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:26:32,368 INFO L480 AbstractCegarLoop]: Abstraction has 815 states and 1007 transitions. [2021-02-21 15:26:32,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 15:26:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1007 transitions. [2021-02-21 15:26:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-21 15:26:32,371 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:32,371 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] [2021-02-21 15:26:32,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 15:26:32,372 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:32,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:32,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1497442616, now seen corresponding path program 1 times [2021-02-21 15:26:32,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:32,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561001639] [2021-02-21 15:26:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,727 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:26:32,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:26:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:26:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:26:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:26:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:26:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 15:26:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-21 15:26:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:32,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:32,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 15:26:32,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 15:26:32,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 15:26:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-21 15:26:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-21 15:26:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 15:26:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:32,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:32,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:26:32,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561001639] [2021-02-21 15:26:32,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:26:32,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 15:26:32,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128640581] [2021-02-21 15:26:32,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 15:26:32,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:26:32,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 15:26:32,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-21 15:26:32,903 INFO L87 Difference]: Start difference. First operand 815 states and 1007 transitions. Second operand 9 states. [2021-02-21 15:26:34,256 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:34,649 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 15:26:35,064 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:35,434 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:36,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:26:36,891 INFO L93 Difference]: Finished difference Result 1863 states and 2473 transitions. [2021-02-21 15:26:36,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 15:26:36,892 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2021-02-21 15:26:36,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:26:36,901 INFO L225 Difference]: With dead ends: 1863 [2021-02-21 15:26:36,901 INFO L226 Difference]: Without dead ends: 1072 [2021-02-21 15:26:36,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-02-21 15:26:36,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-02-21 15:26:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 841. [2021-02-21 15:26:37,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2021-02-21 15:26:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1035 transitions. [2021-02-21 15:26:37,177 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1035 transitions. Word has length 88 [2021-02-21 15:26:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:26:37,178 INFO L480 AbstractCegarLoop]: Abstraction has 841 states and 1035 transitions. [2021-02-21 15:26:37,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 15:26:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1035 transitions. [2021-02-21 15:26:37,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-21 15:26:37,183 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:37,183 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] [2021-02-21 15:26:37,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 15:26:37,184 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:37,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:37,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1222683002, now seen corresponding path program 1 times [2021-02-21 15:26:37,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:37,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047806208] [2021-02-21 15:26:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:37,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:37,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,571 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:26:37,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:26:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:26:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:26:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:26:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 15:26:37,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:26:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 15:26:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-21 15:26:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:37,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:37,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 15:26:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:37,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-21 15:26:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-21 15:26:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 15:26:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:37,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:37,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:26:37,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047806208] [2021-02-21 15:26:37,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:26:37,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-21 15:26:37,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82682595] [2021-02-21 15:26:37,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-21 15:26:37,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:26:37,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-21 15:26:37,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-02-21 15:26:37,779 INFO L87 Difference]: Start difference. First operand 841 states and 1035 transitions. Second operand 11 states. [2021-02-21 15:26:38,545 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:26:38,975 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:39,358 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:40,308 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:40,693 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:41,079 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:26:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:26:42,766 INFO L93 Difference]: Finished difference Result 1917 states and 2592 transitions. [2021-02-21 15:26:42,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 15:26:42,767 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2021-02-21 15:26:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:26:42,775 INFO L225 Difference]: With dead ends: 1917 [2021-02-21 15:26:42,776 INFO L226 Difference]: Without dead ends: 1100 [2021-02-21 15:26:42,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-02-21 15:26:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2021-02-21 15:26:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 857. [2021-02-21 15:26:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2021-02-21 15:26:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1051 transitions. [2021-02-21 15:26:42,993 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1051 transitions. Word has length 88 [2021-02-21 15:26:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:26:42,994 INFO L480 AbstractCegarLoop]: Abstraction has 857 states and 1051 transitions. [2021-02-21 15:26:42,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-21 15:26:42,994 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1051 transitions. [2021-02-21 15:26:42,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-21 15:26:42,996 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:42,996 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] [2021-02-21 15:26:42,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 15:26:42,997 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:42,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:42,997 INFO L82 PathProgramCache]: Analyzing trace with hash 727617253, now seen corresponding path program 1 times [2021-02-21 15:26:42,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:42,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396881836] [2021-02-21 15:26:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:43,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:43,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:43,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:43,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 15:26:43,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,406 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:26:43,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:26:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 15:26:43,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:26:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:26:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:26:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:26:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 15:26:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-21 15:26:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:26:43,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:26:43,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:26:43,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:26:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:26:43,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 15:26:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:26:43,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-21 15:26:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-21 15:26:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 15:26:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:26:43,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:26:43,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:26:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:26:43,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396881836] [2021-02-21 15:26:43,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:26:43,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 15:26:43,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273590645] [2021-02-21 15:26:43,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 15:26:43,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:26:43,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 15:26:43,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-21 15:26:43,633 INFO L87 Difference]: Start difference. First operand 857 states and 1051 transitions. Second operand 7 states. [2021-02-21 15:26:44,212 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:26:44,861 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:26:48,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:26:48,184 INFO L93 Difference]: Finished difference Result 2846 states and 3865 transitions. [2021-02-21 15:26:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 15:26:48,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2021-02-21 15:26:48,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:26:48,199 INFO L225 Difference]: With dead ends: 2846 [2021-02-21 15:26:48,200 INFO L226 Difference]: Without dead ends: 2013 [2021-02-21 15:26:48,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-21 15:26:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2021-02-21 15:26:48,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1711. [2021-02-21 15:26:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1711 states. [2021-02-21 15:26:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2117 transitions. [2021-02-21 15:26:48,653 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2117 transitions. Word has length 88 [2021-02-21 15:26:48,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:26:48,654 INFO L480 AbstractCegarLoop]: Abstraction has 1711 states and 2117 transitions. [2021-02-21 15:26:48,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 15:26:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2117 transitions. [2021-02-21 15:26:48,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-02-21 15:26:48,658 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:26:48,658 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] [2021-02-21 15:26:48,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 15:26:48,658 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:26:48,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:26:48,659 INFO L82 PathProgramCache]: Analyzing trace with hash -428984673, now seen corresponding path program 1 times [2021-02-21 15:26:48,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:26:48,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694362875] [2021-02-21 15:26:48,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:26:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:26:48,762 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:26:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:26:48,847 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:26:48,987 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 15:26:48,987 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 15:26:48,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 15:26:49,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:26:49 BoogieIcfgContainer [2021-02-21 15:26:49,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 15:26:49,231 INFO L168 Benchmark]: Toolchain (without parser) took 43534.74 ms. Allocated memory was 161.5 MB in the beginning and 518.0 MB in the end (delta: 356.5 MB). Free memory was 135.1 MB in the beginning and 474.0 MB in the end (delta: -338.9 MB). Peak memory consumption was 307.3 MB. Max. memory is 8.0 GB. [2021-02-21 15:26:49,232 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 161.5 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:26:49,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.76 ms. Allocated memory is still 161.5 MB. Free memory was 133.8 MB in the beginning and 111.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-21 15:26:49,232 INFO L168 Benchmark]: Boogie Preprocessor took 115.62 ms. Allocated memory is still 161.5 MB. Free memory was 111.7 MB in the beginning and 107.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-21 15:26:49,235 INFO L168 Benchmark]: RCFGBuilder took 1568.01 ms. Allocated memory is still 161.5 MB. Free memory was 107.8 MB in the beginning and 67.0 MB in the end (delta: 40.8 MB). Peak memory consumption was 41.5 MB. Max. memory is 8.0 GB. [2021-02-21 15:26:49,236 INFO L168 Benchmark]: TraceAbstraction took 41251.85 ms. Allocated memory was 161.5 MB in the beginning and 518.0 MB in the end (delta: 356.5 MB). Free memory was 67.0 MB in the beginning and 474.0 MB in the end (delta: -406.9 MB). Peak memory consumption was 238.5 MB. Max. memory is 8.0 GB. [2021-02-21 15:26:49,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 161.5 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 581.76 ms. Allocated memory is still 161.5 MB. Free memory was 133.8 MB in the beginning and 111.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.62 ms. Allocated memory is still 161.5 MB. Free memory was 111.7 MB in the beginning and 107.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1568.01 ms. Allocated memory is still 161.5 MB. Free memory was 107.8 MB in the beginning and 67.0 MB in the end (delta: 40.8 MB). Peak memory consumption was 41.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 41251.85 ms. Allocated memory was 161.5 MB in the beginning and 518.0 MB in the end (delta: 356.5 MB). Free memory was 67.0 MB in the beginning and 474.0 MB in the end (delta: -406.9 MB). Peak memory consumption was 238.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 508]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L161] int pumpRunning = 0; [L162] int systemActive = 1; [L401] int waterLevel = 1; [L402] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L804] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] int retValue_acc ; [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L591] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L592] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L593] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L597] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L598] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L580] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L86] int splverifierCounter ; [L87] int tmp ; [L88] int tmp___0 ; [L89] int tmp___1 ; [L90] int tmp___2 ; [L93] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L95] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L97] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L103] tmp = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L107] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L419] COND TRUE waterLevel < 2 [L420] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L113] tmp___0 = __VERIFIER_nondet_int() [L115] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L117] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L431] COND FALSE !(\read(methaneLevelCritical)) [L434] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L117] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L123] tmp___2 = __VERIFIER_nondet_int() [L125] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___2=1, waterLevel=2] [L140] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L169] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L176] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L178] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L250] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L253] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L268] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L224] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L227] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L242] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L198] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L201] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L203] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L347] int retValue_acc ; [L348] int tmp ; [L349] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L353] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L481] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L484] COND FALSE !(waterLevel < 2) [L488] retValue_acc = 0 [L489] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L353] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L353] tmp = isHighWaterSensorDry() [L355] COND FALSE !(\read(tmp)) [L358] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L360] retValue_acc = tmp___0 [L361] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L203] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L203] tmp = isHighWaterLevel() [L205] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L207] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L278] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L207] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L242] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L268] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L178] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L184] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L610] int tmp ; [L611] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L440] int retValue_acc ; [L443] retValue_acc = methaneLevelCritical [L444] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L615] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] tmp = isMethaneLevelCritical() [L617] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L619] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L619] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L619] tmp___0 = isPumpRunning() [L621] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L623] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 33.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1092 SDtfs, 1945 SDslu, 1145 SDs, 0 SdLazy, 5779 SolverSat, 1217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 186 SyntacticMatches, 5 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1711occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 1219 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 618 NumberOfCodeBlocks, 618 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 166968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...