/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 19:16:51,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 19:16:51,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 19:16:52,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 19:16:52,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 19:16:52,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 19:16:52,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 19:16:52,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 19:16:52,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 19:16:52,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 19:16:52,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 19:16:52,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 19:16:52,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 19:16:52,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 19:16:52,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 19:16:52,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 19:16:52,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 19:16:52,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 19:16:52,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 19:16:52,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 19:16:52,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 19:16:52,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 19:16:52,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 19:16:52,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 19:16:52,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 19:16:52,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 19:16:52,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 19:16:52,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 19:16:52,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 19:16:52,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 19:16:52,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 19:16:52,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 19:16:52,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 19:16:52,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 19:16:52,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 19:16:52,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 19:16:52,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 19:16:52,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 19:16:52,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 19:16:52,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 19:16:52,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 19:16:52,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 19:16:52,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 19:16:52,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 19:16:52,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 19:16:52,114 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 19:16:52,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 19:16:52,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 19:16:52,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 19:16:52,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 19:16:52,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 19:16:52,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 19:16:52,116 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 19:16:52,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 19:16:52,116 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 19:16:52,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 19:16:52,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 19:16:52,117 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 19:16:52,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 19:16:52,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 19:16:52,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 19:16:52,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 19:16:52,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 19:16:52,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 19:16:52,120 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 19:16:52,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 19:16:52,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 19:16:52,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 19:16:52,611 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 19:16:52,612 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 19:16:52,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2021-02-21 19:16:52,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70705bb9f/88ea2cbf106a40ba96ded79d652aa4a8/FLAG51789708a [2021-02-21 19:16:53,600 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 19:16:53,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2021-02-21 19:16:53,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70705bb9f/88ea2cbf106a40ba96ded79d652aa4a8/FLAG51789708a [2021-02-21 19:16:53,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70705bb9f/88ea2cbf106a40ba96ded79d652aa4a8 [2021-02-21 19:16:53,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 19:16:53,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 19:16:53,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 19:16:53,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 19:16:53,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 19:16:53,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 07:16:53" (1/1) ... [2021-02-21 19:16:53,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3049cb8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:53, skipping insertion in model container [2021-02-21 19:16:53,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 07:16:53" (1/1) ... [2021-02-21 19:16:53,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 19:16:54,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 19:16:54,295 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c[1281,1294] [2021-02-21 19:16:54,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 19:16:54,592 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 19:16:54,612 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c[1281,1294] [2021-02-21 19:16:54,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 19:16:54,784 INFO L208 MainTranslator]: Completed translation [2021-02-21 19:16:54,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54 WrapperNode [2021-02-21 19:16:54,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 19:16:54,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 19:16:54,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 19:16:54,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 19:16:54,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (1/1) ... [2021-02-21 19:16:54,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (1/1) ... [2021-02-21 19:16:54,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (1/1) ... [2021-02-21 19:16:54,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (1/1) ... [2021-02-21 19:16:54,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (1/1) ... [2021-02-21 19:16:54,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (1/1) ... [2021-02-21 19:16:54,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (1/1) ... [2021-02-21 19:16:54,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 19:16:54,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 19:16:54,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 19:16:54,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 19:16:54,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (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 19:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 19:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 19:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 19:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 19:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 19:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 19:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 19:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-21 19:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 19:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-21 19:16:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 19:16:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 19:16:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 19:16:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 19:16:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 19:16:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-21 19:16:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 19:16:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 19:16:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 19:16:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 19:16:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-21 19:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 19:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 19:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 19:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 19:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 19:16:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 19:16:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-21 19:16:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 19:16:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 19:16:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 19:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 19:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 19:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 19:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 19:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 19:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 19:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 19:16:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 19:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 19:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 19:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 19:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 19:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 19:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 19:16:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 19:16:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 19:16:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 19:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 19:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 19:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 19:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 19:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 19:16:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 19:16:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-21 19:16:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 19:16:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 19:16:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 19:16:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 19:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-21 19:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 19:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-21 19:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-21 19:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-21 19:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 19:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 19:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 19:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 19:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 19:16:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 19:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 19:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 19:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 19:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 19:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 19:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 19:16:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 19:16:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 19:16:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 19:16:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 19:16:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 19:16:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 19:16:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 19:16:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 19:16:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 19:16:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 19:16:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 19:16:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 19:16:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 19:16:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 19:16:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 19:16:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 19:16:56,512 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 19:16:56,513 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 19:16:56,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 07:16:56 BoogieIcfgContainer [2021-02-21 19:16:56,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 19:16:56,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 19:16:56,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 19:16:56,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 19:16:56,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 07:16:53" (1/3) ... [2021-02-21 19:16:56,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3094f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 07:16:56, skipping insertion in model container [2021-02-21 19:16:56,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:16:54" (2/3) ... [2021-02-21 19:16:56,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3094f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 07:16:56, skipping insertion in model container [2021-02-21 19:16:56,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 07:16:56" (3/3) ... [2021-02-21 19:16:56,529 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2021-02-21 19:16:56,538 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 19:16:56,544 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 19:16:56,568 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 19:16:56,598 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 19:16:56,598 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 19:16:56,599 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 19:16:56,599 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 19:16:56,599 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 19:16:56,599 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 19:16:56,599 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 19:16:56,599 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 19:16:56,625 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2021-02-21 19:16:56,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-21 19:16:56,646 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:16:56,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 19:16:56,649 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:16:56,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:16:56,656 INFO L82 PathProgramCache]: Analyzing trace with hash -540230698, now seen corresponding path program 1 times [2021-02-21 19:16:56,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:16:56,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526340796] [2021-02-21 19:16:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:16:56,764 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:16:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:16:57,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,589 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:16:57,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:16:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:16:57,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:16:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:16:57,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:16:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:16:57,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:16:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:16:57,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:16:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:16:57,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-21 19:16:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:16:57,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 19:16:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:16:57,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:16:57,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:16:57,832 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 19:16:57,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526340796] [2021-02-21 19:16:57,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:16:57,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 19:16:57,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157393480] [2021-02-21 19:16:57,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 19:16:57,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:16:57,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 19:16:57,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 19:16:57,864 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2021-02-21 19:16:59,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:16:59,646 INFO L93 Difference]: Finished difference Result 419 states and 499 transitions. [2021-02-21 19:16:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 19:16:59,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-21 19:16:59,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:16:59,668 INFO L225 Difference]: With dead ends: 419 [2021-02-21 19:16:59,668 INFO L226 Difference]: Without dead ends: 268 [2021-02-21 19:16:59,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 19:16:59,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-02-21 19:16:59,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 229. [2021-02-21 19:16:59,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-02-21 19:16:59,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 246 transitions. [2021-02-21 19:16:59,871 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 246 transitions. Word has length 147 [2021-02-21 19:16:59,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:16:59,872 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 246 transitions. [2021-02-21 19:16:59,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 19:16:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 246 transitions. [2021-02-21 19:16:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-21 19:16:59,877 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:16:59,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 19:16:59,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 19:16:59,878 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:16:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:16:59,879 INFO L82 PathProgramCache]: Analyzing trace with hash -804325336, now seen corresponding path program 1 times [2021-02-21 19:16:59,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:16:59,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651939126] [2021-02-21 19:16:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:16:59,884 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:16:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:00,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:00,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,404 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:17:00,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:17:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:00,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:17:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:00,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:17:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:00,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:17:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:00,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:17:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:00,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 19:17:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:00,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 19:17:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:00,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:00,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:00,577 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 19:17:00,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651939126] [2021-02-21 19:17:00,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:17:00,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 19:17:00,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638181895] [2021-02-21 19:17:00,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 19:17:00,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:17:00,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 19:17:00,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 19:17:00,583 INFO L87 Difference]: Start difference. First operand 229 states and 246 transitions. Second operand 4 states. [2021-02-21 19:17:01,497 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:17:02,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:17:02,476 INFO L93 Difference]: Finished difference Result 335 states and 373 transitions. [2021-02-21 19:17:02,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 19:17:02,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-21 19:17:02,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:17:02,481 INFO L225 Difference]: With dead ends: 335 [2021-02-21 19:17:02,482 INFO L226 Difference]: Without dead ends: 251 [2021-02-21 19:17:02,485 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 19:17:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-21 19:17:02,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-21 19:17:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-21 19:17:02,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 233 transitions. [2021-02-21 19:17:02,582 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 233 transitions. Word has length 148 [2021-02-21 19:17:02,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:17:02,583 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 233 transitions. [2021-02-21 19:17:02,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 19:17:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 233 transitions. [2021-02-21 19:17:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-21 19:17:02,586 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:17:02,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 19:17:02,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 19:17:02,587 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:17:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:17:02,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1633713983, now seen corresponding path program 1 times [2021-02-21 19:17:02,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:17:02,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345995975] [2021-02-21 19:17:02,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:17:02,592 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:17:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:02,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:02,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:02,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:02,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:02,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:02,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:02,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:02,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:17:02,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:02,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:03,075 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:17:03,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:17:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:03,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:03,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 19:17:03,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:17:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:03,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:03,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:17:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:03,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:03,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:17:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:03,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:03,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:17:03,205 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 19:17:03,207 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 19:17:03,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:17:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:03,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:03,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 19:17:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:03,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:03,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-21 19:17:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:03,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:03,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:03,280 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 19:17:03,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345995975] [2021-02-21 19:17:03,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:17:03,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 19:17:03,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517543810] [2021-02-21 19:17:03,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 19:17:03,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:17:03,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 19:17:03,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 19:17:03,284 INFO L87 Difference]: Start difference. First operand 219 states and 233 transitions. Second operand 9 states. [2021-02-21 19:17:03,998 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:17:04,531 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:17:04,981 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:17:05,445 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:17:05,940 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:17:06,429 WARN L202 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:17:07,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:17:07,895 INFO L93 Difference]: Finished difference Result 355 states and 398 transitions. [2021-02-21 19:17:07,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 19:17:07,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-21 19:17:07,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:17:07,907 INFO L225 Difference]: With dead ends: 355 [2021-02-21 19:17:07,907 INFO L226 Difference]: Without dead ends: 251 [2021-02-21 19:17:07,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-21 19:17:07,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-21 19:17:08,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-21 19:17:08,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-21 19:17:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 232 transitions. [2021-02-21 19:17:08,027 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 232 transitions. Word has length 157 [2021-02-21 19:17:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:17:08,029 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 232 transitions. [2021-02-21 19:17:08,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 19:17:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 232 transitions. [2021-02-21 19:17:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-21 19:17:08,036 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:17:08,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 19:17:08,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 19:17:08,038 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:17:08,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:17:08,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1066025678, now seen corresponding path program 1 times [2021-02-21 19:17:08,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:17:08,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678936319] [2021-02-21 19:17:08,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:17:08,046 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:17:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:08,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:08,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:08,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:08,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:08,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:17:08,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:17:08,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:17:08,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:17:08,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:17:08,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:17:08,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:08,775 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:17:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:17:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:08,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:08,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 19:17:08,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:17:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:08,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:08,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:17:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:08,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:08,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:17:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:08,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:08,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:17:08,944 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 19:17:08,945 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 19:17:08,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:17:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:08,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:08,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-21 19:17:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:08,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:08,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:17:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:09,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:09,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:09,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-21 19:17:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:09,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:09,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:09,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:09,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:09,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:09,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:09,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-21 19:17:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:09,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:09,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:09,121 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 19:17:09,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678936319] [2021-02-21 19:17:09,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:17:09,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-21 19:17:09,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91372465] [2021-02-21 19:17:09,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-21 19:17:09,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:17:09,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-21 19:17:09,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-21 19:17:09,129 INFO L87 Difference]: Start difference. First operand 219 states and 232 transitions. Second operand 14 states. [2021-02-21 19:17:09,848 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:17:10,363 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:17:10,755 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:17:11,200 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:17:11,633 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:17:12,050 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:17:12,970 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:17:14,258 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:17:14,698 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:17:15,209 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:17:15,748 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:17:16,165 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 19:17:16,571 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:17:16,994 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:17:17,393 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:17:17,810 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:17:18,253 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:17:18,821 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 19:17:19,273 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:17:19,756 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:17:21,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:17:21,243 INFO L93 Difference]: Finished difference Result 610 states and 732 transitions. [2021-02-21 19:17:21,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-21 19:17:21,244 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2021-02-21 19:17:21,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:17:21,255 INFO L225 Difference]: With dead ends: 610 [2021-02-21 19:17:21,255 INFO L226 Difference]: Without dead ends: 506 [2021-02-21 19:17:21,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-21 19:17:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-02-21 19:17:21,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 403. [2021-02-21 19:17:21,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2021-02-21 19:17:21,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 444 transitions. [2021-02-21 19:17:21,517 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 444 transitions. Word has length 165 [2021-02-21 19:17:21,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:17:21,518 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 444 transitions. [2021-02-21 19:17:21,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-21 19:17:21,518 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 444 transitions. [2021-02-21 19:17:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-02-21 19:17:21,522 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:17:21,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 19:17:21,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 19:17:21,524 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:17:21,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:17:21,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1351030507, now seen corresponding path program 1 times [2021-02-21 19:17:21,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:17:21,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443345820] [2021-02-21 19:17:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:17:21,533 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:17:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:21,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:21,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:21,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:21,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:21,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:21,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:21,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:21,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:21,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:21,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:21,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:21,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:21,957 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:17:21,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:17:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:17:22,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:17:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:17:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:17:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:17:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-21 19:17:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 19:17:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 19:17:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-21 19:17:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-21 19:17:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:17:22,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:22,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:17:22,150 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 19:17:22,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443345820] [2021-02-21 19:17:22,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:17:22,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 19:17:22,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116722486] [2021-02-21 19:17:22,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 19:17:22,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:17:22,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 19:17:22,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-21 19:17:22,153 INFO L87 Difference]: Start difference. First operand 403 states and 444 transitions. Second operand 6 states. [2021-02-21 19:17:22,866 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:17:23,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:17:23,717 INFO L93 Difference]: Finished difference Result 605 states and 688 transitions. [2021-02-21 19:17:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 19:17:23,718 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2021-02-21 19:17:23,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:17:23,724 INFO L225 Difference]: With dead ends: 605 [2021-02-21 19:17:23,725 INFO L226 Difference]: Without dead ends: 317 [2021-02-21 19:17:23,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-21 19:17:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-02-21 19:17:23,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 296. [2021-02-21 19:17:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2021-02-21 19:17:23,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 313 transitions. [2021-02-21 19:17:23,861 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 313 transitions. Word has length 170 [2021-02-21 19:17:23,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:17:23,862 INFO L480 AbstractCegarLoop]: Abstraction has 296 states and 313 transitions. [2021-02-21 19:17:23,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 19:17:23,862 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 313 transitions. [2021-02-21 19:17:23,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-21 19:17:23,865 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:17:23,866 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 19:17:23,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 19:17:23,867 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:17:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:17:23,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1859347637, now seen corresponding path program 1 times [2021-02-21 19:17:23,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:17:23,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584893668] [2021-02-21 19:17:23,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:17:24,495 WARN L202 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 113 [2021-02-21 19:17:24,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:17:24,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260