/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 19:13:38,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:13:38,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:13:39,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:13:39,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:13:39,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:13:39,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:13:39,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:13:39,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:13:39,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:13:39,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:13:39,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:13:39,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:13:39,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:13:39,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:13:39,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:13:39,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:13:39,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:13:39,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:13:39,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:13:39,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:13:39,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:13:39,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:13:39,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:13:39,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:13:39,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:13:39,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:13:39,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:13:39,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:13:39,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:13:39,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:13:39,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:13:39,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:13:39,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:13:39,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:13:39,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:13:39,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:13:39,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:13:39,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:13:39,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:13:39,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:13:39,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 19:13:39,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:13:39,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:13:39,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:13:39,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:13:39,124 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:13:39,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:13:39,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:13:39,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:13:39,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:13:39,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:13:39,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:13:39,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:13:39,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:13:39,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:13:39,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:13:39,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:13:39,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:13:39,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:13:39,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:13:39,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:13:39,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:13:39,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:13:39,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:13:39,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:13:39,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:13:39,130 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:13:39,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:13:39,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:13:39,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:13:39,612 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:13:39,613 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:13:39,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2021-01-06 19:13:39,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3f1a94a06/1a6c6c29c4ce4bbb9dbfea511af33d6f/FLAG4a51ae395 [2021-01-06 19:13:40,480 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:13:40,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2021-01-06 19:13:40,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3f1a94a06/1a6c6c29c4ce4bbb9dbfea511af33d6f/FLAG4a51ae395 [2021-01-06 19:13:40,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3f1a94a06/1a6c6c29c4ce4bbb9dbfea511af33d6f [2021-01-06 19:13:40,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:13:40,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:13:40,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:13:40,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:13:40,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:13:40,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:13:40" (1/1) ... [2021-01-06 19:13:40,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ea27cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:40, skipping insertion in model container [2021-01-06 19:13:40,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:13:40" (1/1) ... [2021-01-06 19:13:40,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:13:40,845 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] [2021-01-06 19:13:41,057 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c[4780,4793] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~0,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~cf~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_15~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_16~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~1,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~1,] left hand side expression in assignment: lhs: VariableLHS[~excep~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~new~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_18~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~2,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_20~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_21~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~3,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~count,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp16~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_22~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mem_23~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp17~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] [2021-01-06 19:13:41,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:13:41,250 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] [2021-01-06 19:13:41,327 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c[4780,4793] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~0,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~cf~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_15~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_16~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~1,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~1,] left hand side expression in assignment: lhs: VariableLHS[~excep~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~new~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_18~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~2,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_20~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_21~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~3,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~count,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp16~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_22~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mem_23~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp17~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] [2021-01-06 19:13:41,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:13:41,448 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:13:41,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41 WrapperNode [2021-01-06 19:13:41,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:13:41,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:13:41,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:13:41,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:13:41,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:13:41,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:13:41,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:13:41,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:13:41,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... [2021-01-06 19:13:41,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:13:41,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:13:41,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:13:41,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:13:41,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 19:13:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:13:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:13:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:13:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:13:42,852 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:13:42,852 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-01-06 19:13:42,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:13:42 BoogieIcfgContainer [2021-01-06 19:13:42,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:13:42,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:13:42,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:13:42,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:13:42,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:13:40" (1/3) ... [2021-01-06 19:13:42,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34049408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:13:42, skipping insertion in model container [2021-01-06 19:13:42,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:41" (2/3) ... [2021-01-06 19:13:42,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34049408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:13:42, skipping insertion in model container [2021-01-06 19:13:42,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:13:42" (3/3) ... [2021-01-06 19:13:42,865 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2021-01-06 19:13:42,872 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:13:42,878 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-01-06 19:13:42,913 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-06 19:13:42,947 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:13:42,948 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:13:42,948 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:13:42,948 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:13:42,948 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:13:42,949 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:13:42,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:13:42,949 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:13:42,968 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2021-01-06 19:13:42,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 19:13:42,975 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:42,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:13:42,976 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:42,983 INFO L82 PathProgramCache]: Analyzing trace with hash 929673937, now seen corresponding path program 1 times [2021-01-06 19:13:42,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:42,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626301534] [2021-01-06 19:13:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:43,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626301534] [2021-01-06 19:13:43,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:43,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:13:43,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004116088] [2021-01-06 19:13:43,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 19:13:43,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:43,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 19:13:43,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 19:13:43,408 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2021-01-06 19:13:43,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:43,451 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2021-01-06 19:13:43,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 19:13:43,453 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-01-06 19:13:43,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:43,466 INFO L225 Difference]: With dead ends: 172 [2021-01-06 19:13:43,466 INFO L226 Difference]: Without dead ends: 85 [2021-01-06 19:13:43,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 19:13:43,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-01-06 19:13:43,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-01-06 19:13:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-01-06 19:13:43,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2021-01-06 19:13:43,520 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2021-01-06 19:13:43,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:43,521 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2021-01-06 19:13:43,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 19:13:43,521 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2021-01-06 19:13:43,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 19:13:43,522 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:43,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:13:43,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:13:43,523 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:43,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:43,524 INFO L82 PathProgramCache]: Analyzing trace with hash -117082960, now seen corresponding path program 1 times [2021-01-06 19:13:43,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:43,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451573054] [2021-01-06 19:13:43,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:43,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451573054] [2021-01-06 19:13:43,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:43,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:13:43,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104297251] [2021-01-06 19:13:43,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:13:43,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:43,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:13:43,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:43,692 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2021-01-06 19:13:43,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:43,705 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2021-01-06 19:13:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:13:43,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-06 19:13:43,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:43,707 INFO L225 Difference]: With dead ends: 85 [2021-01-06 19:13:43,707 INFO L226 Difference]: Without dead ends: 39 [2021-01-06 19:13:43,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-01-06 19:13:43,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-01-06 19:13:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-01-06 19:13:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2021-01-06 19:13:43,715 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2021-01-06 19:13:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:43,715 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2021-01-06 19:13:43,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:13:43,716 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-01-06 19:13:43,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-06 19:13:43,717 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:43,717 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] [2021-01-06 19:13:43,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:13:43,718 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:43,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:43,718 INFO L82 PathProgramCache]: Analyzing trace with hash 337421565, now seen corresponding path program 1 times [2021-01-06 19:13:43,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:43,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564635975] [2021-01-06 19:13:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:43,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564635975] [2021-01-06 19:13:43,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:43,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:13:43,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428363560] [2021-01-06 19:13:43,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:13:43,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:43,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:13:43,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:43,801 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2021-01-06 19:13:43,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:43,858 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2021-01-06 19:13:43,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:13:43,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-06 19:13:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:43,862 INFO L225 Difference]: With dead ends: 105 [2021-01-06 19:13:43,862 INFO L226 Difference]: Without dead ends: 72 [2021-01-06 19:13:43,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:43,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-01-06 19:13:43,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-01-06 19:13:43,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-01-06 19:13:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2021-01-06 19:13:43,878 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2021-01-06 19:13:43,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:43,878 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2021-01-06 19:13:43,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:13:43,879 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2021-01-06 19:13:43,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 19:13:43,880 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:43,880 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] [2021-01-06 19:13:43,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:13:43,880 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:43,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:43,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1224569535, now seen corresponding path program 1 times [2021-01-06 19:13:43,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:43,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658026679] [2021-01-06 19:13:43,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:43,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658026679] [2021-01-06 19:13:43,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:43,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:13:43,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950354609] [2021-01-06 19:13:43,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:13:43,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:43,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:13:43,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:43,984 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2021-01-06 19:13:44,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:44,057 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2021-01-06 19:13:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:13:44,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-01-06 19:13:44,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:44,060 INFO L225 Difference]: With dead ends: 171 [2021-01-06 19:13:44,060 INFO L226 Difference]: Without dead ends: 109 [2021-01-06 19:13:44,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-01-06 19:13:44,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2021-01-06 19:13:44,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-01-06 19:13:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2021-01-06 19:13:44,098 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2021-01-06 19:13:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:44,099 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2021-01-06 19:13:44,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:13:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2021-01-06 19:13:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 19:13:44,102 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:44,103 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] [2021-01-06 19:13:44,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:13:44,103 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:44,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:44,104 INFO L82 PathProgramCache]: Analyzing trace with hash -840484654, now seen corresponding path program 1 times [2021-01-06 19:13:44,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:44,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221455393] [2021-01-06 19:13:44,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:44,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221455393] [2021-01-06 19:13:44,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:44,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:13:44,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905662169] [2021-01-06 19:13:44,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:44,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:44,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:44,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:44,198 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2021-01-06 19:13:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:44,338 INFO L93 Difference]: Finished difference Result 399 states and 585 transitions. [2021-01-06 19:13:44,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:13:44,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-01-06 19:13:44,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:44,342 INFO L225 Difference]: With dead ends: 399 [2021-01-06 19:13:44,342 INFO L226 Difference]: Without dead ends: 298 [2021-01-06 19:13:44,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:13:44,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-06 19:13:44,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 194. [2021-01-06 19:13:44,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-01-06 19:13:44,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 272 transitions. [2021-01-06 19:13:44,391 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 272 transitions. Word has length 25 [2021-01-06 19:13:44,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:44,392 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 272 transitions. [2021-01-06 19:13:44,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:44,392 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 272 transitions. [2021-01-06 19:13:44,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-06 19:13:44,394 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:44,394 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] [2021-01-06 19:13:44,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:13:44,394 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:44,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:44,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1495173652, now seen corresponding path program 1 times [2021-01-06 19:13:44,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:44,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414940870] [2021-01-06 19:13:44,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:44,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414940870] [2021-01-06 19:13:44,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:44,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:13:44,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705015795] [2021-01-06 19:13:44,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:44,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:44,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:44,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:44,550 INFO L87 Difference]: Start difference. First operand 194 states and 272 transitions. Second operand 5 states. [2021-01-06 19:13:44,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:44,713 INFO L93 Difference]: Finished difference Result 398 states and 570 transitions. [2021-01-06 19:13:44,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:13:44,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-01-06 19:13:44,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:44,716 INFO L225 Difference]: With dead ends: 398 [2021-01-06 19:13:44,717 INFO L226 Difference]: Without dead ends: 396 [2021-01-06 19:13:44,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:13:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-01-06 19:13:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 194. [2021-01-06 19:13:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-01-06 19:13:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 270 transitions. [2021-01-06 19:13:44,755 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 270 transitions. Word has length 26 [2021-01-06 19:13:44,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:44,756 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 270 transitions. [2021-01-06 19:13:44,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:44,756 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 270 transitions. [2021-01-06 19:13:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 19:13:44,763 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:44,764 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] [2021-01-06 19:13:44,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 19:13:44,764 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:44,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:44,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1499969411, now seen corresponding path program 1 times [2021-01-06 19:13:44,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:44,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942511868] [2021-01-06 19:13:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:44,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:44,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942511868] [2021-01-06 19:13:44,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:44,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:13:44,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107190770] [2021-01-06 19:13:44,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:13:44,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:44,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:13:44,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:13:44,857 INFO L87 Difference]: Start difference. First operand 194 states and 270 transitions. Second operand 4 states. [2021-01-06 19:13:44,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:44,969 INFO L93 Difference]: Finished difference Result 392 states and 557 transitions. [2021-01-06 19:13:44,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:13:44,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2021-01-06 19:13:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:44,973 INFO L225 Difference]: With dead ends: 392 [2021-01-06 19:13:44,973 INFO L226 Difference]: Without dead ends: 291 [2021-01-06 19:13:44,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:13:44,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-01-06 19:13:44,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 287. [2021-01-06 19:13:44,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2021-01-06 19:13:44,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 399 transitions. [2021-01-06 19:13:44,999 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 399 transitions. Word has length 33 [2021-01-06 19:13:45,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:45,001 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 399 transitions. [2021-01-06 19:13:45,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:13:45,001 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 399 transitions. [2021-01-06 19:13:45,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 19:13:45,003 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:45,003 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] [2021-01-06 19:13:45,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:13:45,003 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:45,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:45,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1515134207, now seen corresponding path program 1 times [2021-01-06 19:13:45,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:45,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814126861] [2021-01-06 19:13:45,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:45,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814126861] [2021-01-06 19:13:45,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:45,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:13:45,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159019548] [2021-01-06 19:13:45,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:13:45,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:45,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:13:45,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:13:45,062 INFO L87 Difference]: Start difference. First operand 287 states and 399 transitions. Second operand 4 states. [2021-01-06 19:13:45,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:45,153 INFO L93 Difference]: Finished difference Result 817 states and 1156 transitions. [2021-01-06 19:13:45,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:13:45,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2021-01-06 19:13:45,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:45,158 INFO L225 Difference]: With dead ends: 817 [2021-01-06 19:13:45,158 INFO L226 Difference]: Without dead ends: 621 [2021-01-06 19:13:45,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2021-01-06 19:13:45,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 287. [2021-01-06 19:13:45,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2021-01-06 19:13:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 397 transitions. [2021-01-06 19:13:45,191 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 397 transitions. Word has length 33 [2021-01-06 19:13:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:45,192 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 397 transitions. [2021-01-06 19:13:45,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:13:45,193 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 397 transitions. [2021-01-06 19:13:45,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 19:13:45,193 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:45,194 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] [2021-01-06 19:13:45,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:13:45,195 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:45,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:45,196 INFO L82 PathProgramCache]: Analyzing trace with hash 928328193, now seen corresponding path program 1 times [2021-01-06 19:13:45,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:45,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628173955] [2021-01-06 19:13:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:45,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628173955] [2021-01-06 19:13:45,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:45,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:13:45,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359194668] [2021-01-06 19:13:45,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:45,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:45,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:45,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:45,293 INFO L87 Difference]: Start difference. First operand 287 states and 397 transitions. Second operand 5 states. [2021-01-06 19:13:45,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:45,464 INFO L93 Difference]: Finished difference Result 609 states and 854 transitions. [2021-01-06 19:13:45,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:13:45,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-01-06 19:13:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:45,468 INFO L225 Difference]: With dead ends: 609 [2021-01-06 19:13:45,468 INFO L226 Difference]: Without dead ends: 413 [2021-01-06 19:13:45,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:13:45,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-01-06 19:13:45,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 318. [2021-01-06 19:13:45,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2021-01-06 19:13:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 443 transitions. [2021-01-06 19:13:45,504 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 443 transitions. Word has length 33 [2021-01-06 19:13:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:45,504 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 443 transitions. [2021-01-06 19:13:45,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 443 transitions. [2021-01-06 19:13:45,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 19:13:45,506 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:45,506 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-01-06 19:13:45,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 19:13:45,506 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:45,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:45,507 INFO L82 PathProgramCache]: Analyzing trace with hash -108849228, now seen corresponding path program 1 times [2021-01-06 19:13:45,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:45,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134810602] [2021-01-06 19:13:45,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-06 19:13:45,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134810602] [2021-01-06 19:13:45,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:45,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:13:45,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628157032] [2021-01-06 19:13:45,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:45,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:45,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:45,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:45,577 INFO L87 Difference]: Start difference. First operand 318 states and 443 transitions. Second operand 5 states. [2021-01-06 19:13:45,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:45,684 INFO L93 Difference]: Finished difference Result 902 states and 1251 transitions. [2021-01-06 19:13:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:13:45,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2021-01-06 19:13:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:45,692 INFO L225 Difference]: With dead ends: 902 [2021-01-06 19:13:45,692 INFO L226 Difference]: Without dead ends: 590 [2021-01-06 19:13:45,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:13:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2021-01-06 19:13:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 330. [2021-01-06 19:13:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2021-01-06 19:13:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 455 transitions. [2021-01-06 19:13:45,730 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 455 transitions. Word has length 47 [2021-01-06 19:13:45,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:45,730 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 455 transitions. [2021-01-06 19:13:45,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:45,730 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 455 transitions. [2021-01-06 19:13:45,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 19:13:45,731 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:45,732 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-01-06 19:13:45,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 19:13:45,732 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:45,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:45,733 INFO L82 PathProgramCache]: Analyzing trace with hash -618322318, now seen corresponding path program 1 times [2021-01-06 19:13:45,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:45,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44067932] [2021-01-06 19:13:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-06 19:13:45,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44067932] [2021-01-06 19:13:45,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:45,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:13:45,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366621972] [2021-01-06 19:13:45,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:45,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:45,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:45,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:45,812 INFO L87 Difference]: Start difference. First operand 330 states and 455 transitions. Second operand 5 states. [2021-01-06 19:13:45,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:45,950 INFO L93 Difference]: Finished difference Result 713 states and 973 transitions. [2021-01-06 19:13:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 19:13:45,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2021-01-06 19:13:45,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:45,955 INFO L225 Difference]: With dead ends: 713 [2021-01-06 19:13:45,955 INFO L226 Difference]: Without dead ends: 389 [2021-01-06 19:13:45,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:13:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2021-01-06 19:13:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 261. [2021-01-06 19:13:45,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2021-01-06 19:13:45,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 351 transitions. [2021-01-06 19:13:45,993 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 351 transitions. Word has length 47 [2021-01-06 19:13:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:45,993 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 351 transitions. [2021-01-06 19:13:45,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:45,994 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 351 transitions. [2021-01-06 19:13:45,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-06 19:13:45,994 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:45,995 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-01-06 19:13:45,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:13:45,995 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:45,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:45,996 INFO L82 PathProgramCache]: Analyzing trace with hash -423849614, now seen corresponding path program 1 times [2021-01-06 19:13:45,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:45,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11182635] [2021-01-06 19:13:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:46,104 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:46,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11182635] [2021-01-06 19:13:46,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296411899] [2021-01-06 19:13:46,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:13:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:46,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 19:13:46,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:13:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:13:46,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:13:46,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-01-06 19:13:46,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489891496] [2021-01-06 19:13:46,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:13:46,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:46,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:13:46,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:13:46,452 INFO L87 Difference]: Start difference. First operand 261 states and 351 transitions. Second operand 6 states. [2021-01-06 19:13:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:46,715 INFO L93 Difference]: Finished difference Result 735 states and 1011 transitions. [2021-01-06 19:13:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:13:46,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2021-01-06 19:13:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:46,719 INFO L225 Difference]: With dead ends: 735 [2021-01-06 19:13:46,719 INFO L226 Difference]: Without dead ends: 534 [2021-01-06 19:13:46,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:13:46,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-01-06 19:13:46,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 321. [2021-01-06 19:13:46,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2021-01-06 19:13:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 433 transitions. [2021-01-06 19:13:46,765 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 433 transitions. Word has length 48 [2021-01-06 19:13:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:46,765 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 433 transitions. [2021-01-06 19:13:46,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:13:46,765 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 433 transitions. [2021-01-06 19:13:46,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 19:13:46,767 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:46,767 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-01-06 19:13:46,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-01-06 19:13:46,983 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:46,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:46,984 INFO L82 PathProgramCache]: Analyzing trace with hash -568509983, now seen corresponding path program 2 times [2021-01-06 19:13:46,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:46,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919737793] [2021-01-06 19:13:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 19:13:47,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 19:13:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 19:13:47,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 19:13:47,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 19:13:47,259 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 19:13:47,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 19:13:47,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 07:13:47 BoogieIcfgContainer [2021-01-06 19:13:47,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 19:13:47,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 19:13:47,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 19:13:47,461 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 19:13:47,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:13:42" (3/4) ... [2021-01-06 19:13:47,464 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 19:13:47,618 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product43.cil.c-witness.graphml [2021-01-06 19:13:47,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 19:13:47,620 INFO L168 Benchmark]: Toolchain (without parser) took 6861.23 ms. Allocated memory was 175.1 MB in the beginning and 233.8 MB in the end (delta: 58.7 MB). Free memory was 149.5 MB in the beginning and 153.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 54.9 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:47,621 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 175.1 MB. Free memory was 147.2 MB in the beginning and 147.0 MB in the end (delta: 157.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 19:13:47,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.65 ms. Allocated memory is still 175.1 MB. Free memory was 149.1 MB in the beginning and 127.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:47,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.80 ms. Allocated memory is still 175.1 MB. Free memory was 127.8 MB in the beginning and 124.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:47,623 INFO L168 Benchmark]: Boogie Preprocessor took 130.79 ms. Allocated memory is still 175.1 MB. Free memory was 124.5 MB in the beginning and 156.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:47,623 INFO L168 Benchmark]: RCFGBuilder took 1193.91 ms. Allocated memory is still 175.1 MB. Free memory was 156.2 MB in the beginning and 101.7 MB in the end (delta: 54.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:47,624 INFO L168 Benchmark]: TraceAbstraction took 4603.60 ms. Allocated memory was 175.1 MB in the beginning and 233.8 MB in the end (delta: 58.7 MB). Free memory was 101.1 MB in the beginning and 177.6 MB in the end (delta: -76.5 MB). Peak memory consumption was 82.9 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:47,625 INFO L168 Benchmark]: Witness Printer took 157.68 ms. Allocated memory is still 233.8 MB. Free memory was 177.6 MB in the beginning and 153.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:47,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 175.1 MB. Free memory was 147.2 MB in the beginning and 147.0 MB in the end (delta: 157.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 686.65 ms. Allocated memory is still 175.1 MB. Free memory was 149.1 MB in the beginning and 127.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 77.80 ms. Allocated memory is still 175.1 MB. Free memory was 127.8 MB in the beginning and 124.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 130.79 ms. Allocated memory is still 175.1 MB. Free memory was 124.5 MB in the beginning and 156.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1193.91 ms. Allocated memory is still 175.1 MB. Free memory was 156.2 MB in the beginning and 101.7 MB in the end (delta: 54.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4603.60 ms. Allocated memory was 175.1 MB in the beginning and 233.8 MB in the end (delta: 58.7 MB). Free memory was 101.1 MB in the beginning and 177.6 MB in the end (delta: -76.5 MB). Peak memory consumption was 82.9 MB. Max. memory is 8.0 GB. * Witness Printer took 157.68 ms. Allocated memory is still 233.8 MB. Free memory was 177.6 MB in the beginning and 153.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 312]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] int retValue_acc ; [L394] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L537] int retValue_acc ; [L540] retValue_acc = 1 [L541] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] COND TRUE waterLevel < 2 [L436] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] COND TRUE \read(systemActive) [L159] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND TRUE ! pumpRunning [L274] int retValue_acc ; [L275] int tmp ; [L276] int tmp___0 ; [L497] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L500] COND FALSE !(waterLevel < 2) [L504] retValue_acc = 0 [L505] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L280] tmp = isHighWaterSensorDry() [L282] COND FALSE !(\read(tmp)) [L285] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L287] retValue_acc = tmp___0 [L288] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] tmp = isHighWaterLevel() [L166] COND TRUE \read(tmp) [L193] int tmp ; [L218] int retValue_acc ; [L456] int retValue_acc ; [L459] retValue_acc = methaneLevelCritical [L460] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L222] retValue_acc = isMethaneLevelCritical() [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] tmp = isMethaneAlarm() [L199] COND FALSE !(\read(tmp)) [L187] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L913] int tmp ; [L914] int tmp___0 ; [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L918] tmp = getWaterLevel() [L920] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L130] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L423] COND TRUE waterLevel > 0 [L424] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L137] COND TRUE \read(systemActive) [L159] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L913] int tmp ; [L914] int tmp___0 ; [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L918] tmp = getWaterLevel() [L920] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L130] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L423] COND TRUE waterLevel > 0 [L424] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L137] COND TRUE \read(systemActive) [L159] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L162] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L913] int tmp ; [L914] int tmp___0 ; [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L918] tmp = getWaterLevel() [L920] COND TRUE tmp == 0 [L229] int retValue_acc ; [L232] retValue_acc = pumpRunning [L233] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L922] tmp___0 = isPumpRunning() [L924] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L312] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1093 SDtfs, 1254 SDslu, 1597 SDs, 0 SdLazy, 237 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1346 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 26739 SizeOfPredicates, 3 NumberOfNonLiveVariables, 413 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 50/56 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...