/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_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 19:13:36,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:13:36,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:13:36,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:13:36,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:13:36,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:13:36,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:13:36,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:13:36,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:13:36,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:13:36,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:13:36,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:13:36,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:13:36,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:13:36,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:13:36,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:13:36,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:13:36,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:13:36,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:13:36,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:13:36,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:13:36,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:13:36,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:13:36,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:13:36,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:13:36,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:13:36,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:13:36,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:13:36,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:13:36,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:13:36,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:13:36,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:13:36,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:13:36,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:13:36,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:13:36,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:13:36,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:13:36,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:13:36,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:13:36,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:13:36,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:13:36,516 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 19:13:36,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:13:36,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:13:36,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:13:36,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:13:36,564 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:13:36,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:13:36,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:13:36,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:13:36,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:13:36,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:13:36,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:13:36,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:13:36,567 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:13:36,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:13:36,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:13:36,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:13:36,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:13:36,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:13:36,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:13:36,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:13:36,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:13:36,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:13:36,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:13:36,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:13:36,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:13:36,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:13:36,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:13:36,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:13:36,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:13:36,988 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:13:36,988 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:13:36,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2021-01-06 19:13:37,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e29bfbc14/31739112389848388d35175a6242654c/FLAG33f514999 [2021-01-06 19:13:37,853 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:13:37,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2021-01-06 19:13:37,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e29bfbc14/31739112389848388d35175a6242654c/FLAG33f514999 [2021-01-06 19:13:38,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e29bfbc14/31739112389848388d35175a6242654c [2021-01-06 19:13:38,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:13:38,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:13:38,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:13:38,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:13:38,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:13:38,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:38,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38, skipping insertion in model container [2021-01-06 19:13:38,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:38,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:13:38,256 INFO L178 MainTranslator]: Built tables and reachable declarations 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~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] 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[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] [2021-01-06 19:13:38,567 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_product41.cil.c[3676,3689] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] 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~2,] 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~3,] 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~5,] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] 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~6,] 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~7,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] 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~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] [2021-01-06 19:13:38,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:13:38,748 INFO L203 MainTranslator]: Completed pre-run 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~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] 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[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] [2021-01-06 19:13:38,774 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_product41.cil.c[3676,3689] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] 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~2,] 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~3,] 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~5,] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] 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~6,] 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~7,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] 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~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] [2021-01-06 19:13:38,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:13:38,878 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:13:38,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38 WrapperNode [2021-01-06 19:13:38,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:13:38,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:13:38,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:13:38,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:13:38,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:38,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:38,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:13:38,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:13:38,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:13:38,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:13:38,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:38,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:38,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:38,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:39,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:39,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:39,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (1/1) ... [2021-01-06 19:13:39,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:13:39,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:13:39,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:13:39,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:13:39,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (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 19:13:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:13:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:13:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:13:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:13:40,152 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:13:40,152 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-01-06 19:13:40,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:13:40 BoogieIcfgContainer [2021-01-06 19:13:40,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:13:40,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:13:40,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:13:40,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:13:40,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:13:38" (1/3) ... [2021-01-06 19:13:40,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9bf613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:13:40, skipping insertion in model container [2021-01-06 19:13:40,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:13:38" (2/3) ... [2021-01-06 19:13:40,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9bf613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:13:40, skipping insertion in model container [2021-01-06 19:13:40,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:13:40" (3/3) ... [2021-01-06 19:13:40,180 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2021-01-06 19:13:40,194 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:13:40,200 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-01-06 19:13:40,224 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-06 19:13:40,270 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:13:40,271 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:13:40,271 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:13:40,271 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:13:40,273 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:13:40,273 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:13:40,273 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:13:40,273 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:13:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2021-01-06 19:13:40,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 19:13:40,310 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:40,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:13:40,311 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:40,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:40,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1847621448, now seen corresponding path program 1 times [2021-01-06 19:13:40,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:40,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023183653] [2021-01-06 19:13:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:40,713 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 19:13:40,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023183653] [2021-01-06 19:13:40,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:40,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:13:40,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733270684] [2021-01-06 19:13:40,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 19:13:40,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:40,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 19:13:40,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 19:13:40,742 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2021-01-06 19:13:40,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:40,790 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2021-01-06 19:13:40,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 19:13:40,792 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-01-06 19:13:40,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:40,814 INFO L225 Difference]: With dead ends: 168 [2021-01-06 19:13:40,815 INFO L226 Difference]: Without dead ends: 83 [2021-01-06 19:13:40,820 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 19:13:40,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-01-06 19:13:40,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-01-06 19:13:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-01-06 19:13:40,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2021-01-06 19:13:40,888 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2021-01-06 19:13:40,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:40,889 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2021-01-06 19:13:40,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 19:13:40,890 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2021-01-06 19:13:40,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 19:13:40,891 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:40,892 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 19:13:40,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:13:40,893 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash 800864551, now seen corresponding path program 1 times [2021-01-06 19:13:40,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:40,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415514549] [2021-01-06 19:13:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:41,061 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 19:13:41,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415514549] [2021-01-06 19:13:41,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:41,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:13:41,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658490834] [2021-01-06 19:13:41,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:13:41,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:41,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:13:41,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:41,088 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2021-01-06 19:13:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:41,101 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2021-01-06 19:13:41,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:13:41,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-06 19:13:41,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:41,103 INFO L225 Difference]: With dead ends: 83 [2021-01-06 19:13:41,104 INFO L226 Difference]: Without dead ends: 37 [2021-01-06 19:13:41,105 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 19:13:41,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-06 19:13:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-01-06 19:13:41,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 19:13:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2021-01-06 19:13:41,111 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2021-01-06 19:13:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:41,111 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2021-01-06 19:13:41,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:13:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2021-01-06 19:13:41,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-06 19:13:41,113 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:41,113 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 19:13:41,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:13:41,114 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:41,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:41,115 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2021-01-06 19:13:41,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:41,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914410952] [2021-01-06 19:13:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:41,201 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 19:13:41,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914410952] [2021-01-06 19:13:41,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:41,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:13:41,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015229805] [2021-01-06 19:13:41,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:13:41,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:41,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:13:41,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:41,206 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2021-01-06 19:13:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:41,219 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2021-01-06 19:13:41,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:13:41,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-06 19:13:41,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:41,222 INFO L225 Difference]: With dead ends: 68 [2021-01-06 19:13:41,222 INFO L226 Difference]: Without dead ends: 37 [2021-01-06 19:13:41,224 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 19:13:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-06 19:13:41,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-01-06 19:13:41,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 19:13:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2021-01-06 19:13:41,236 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2021-01-06 19:13:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:41,236 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2021-01-06 19:13:41,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:13:41,237 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2021-01-06 19:13:41,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 19:13:41,240 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:41,240 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 19:13:41,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:13:41,241 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:41,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:41,242 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2021-01-06 19:13:41,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:41,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440010098] [2021-01-06 19:13:41,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:41,356 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 19:13:41,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440010098] [2021-01-06 19:13:41,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:41,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:13:41,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514147268] [2021-01-06 19:13:41,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:13:41,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:41,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:13:41,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:13:41,361 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2021-01-06 19:13:41,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:41,417 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2021-01-06 19:13:41,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:13:41,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-01-06 19:13:41,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:41,419 INFO L225 Difference]: With dead ends: 89 [2021-01-06 19:13:41,419 INFO L226 Difference]: Without dead ends: 58 [2021-01-06 19:13:41,420 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 19:13:41,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-01-06 19:13:41,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-01-06 19:13:41,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-01-06 19:13:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2021-01-06 19:13:41,434 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2021-01-06 19:13:41,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:41,434 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2021-01-06 19:13:41,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:13:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2021-01-06 19:13:41,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-06 19:13:41,436 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:41,437 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] [2021-01-06 19:13:41,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:13:41,437 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:41,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:41,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2021-01-06 19:13:41,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:41,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774963131] [2021-01-06 19:13:41,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:41,558 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 19:13:41,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774963131] [2021-01-06 19:13:41,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:41,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:13:41,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363908231] [2021-01-06 19:13:41,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:41,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:41,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:41,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:41,563 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2021-01-06 19:13:41,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:41,647 INFO L93 Difference]: Finished difference Result 203 states and 292 transitions. [2021-01-06 19:13:41,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:13:41,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2021-01-06 19:13:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:41,650 INFO L225 Difference]: With dead ends: 203 [2021-01-06 19:13:41,650 INFO L226 Difference]: Without dead ends: 153 [2021-01-06 19:13:41,651 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 19:13:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-01-06 19:13:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 98. [2021-01-06 19:13:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-01-06 19:13:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 134 transitions. [2021-01-06 19:13:41,665 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 134 transitions. Word has length 29 [2021-01-06 19:13:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:41,666 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 134 transitions. [2021-01-06 19:13:41,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 134 transitions. [2021-01-06 19:13:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-06 19:13:41,667 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:41,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:13:41,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:13:41,668 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:41,669 INFO L82 PathProgramCache]: Analyzing trace with hash 548279918, now seen corresponding path program 1 times [2021-01-06 19:13:41,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:41,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548827754] [2021-01-06 19:13:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:41,720 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 19:13:41,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548827754] [2021-01-06 19:13:41,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:41,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:13:41,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592900931] [2021-01-06 19:13:41,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:13:41,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:41,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:13:41,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:13:41,723 INFO L87 Difference]: Start difference. First operand 98 states and 134 transitions. Second operand 4 states. [2021-01-06 19:13:41,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:41,827 INFO L93 Difference]: Finished difference Result 196 states and 275 transitions. [2021-01-06 19:13:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:13:41,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-01-06 19:13:41,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:41,830 INFO L225 Difference]: With dead ends: 196 [2021-01-06 19:13:41,830 INFO L226 Difference]: Without dead ends: 146 [2021-01-06 19:13:41,830 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 19:13:41,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-01-06 19:13:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2021-01-06 19:13:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-01-06 19:13:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 197 transitions. [2021-01-06 19:13:41,858 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 197 transitions. Word has length 30 [2021-01-06 19:13:41,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:41,858 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 197 transitions. [2021-01-06 19:13:41,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:13:41,859 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 197 transitions. [2021-01-06 19:13:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-06 19:13:41,860 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:41,860 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] [2021-01-06 19:13:41,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 19:13:41,860 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:41,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:41,865 INFO L82 PathProgramCache]: Analyzing trace with hash 806445356, now seen corresponding path program 1 times [2021-01-06 19:13:41,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:41,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513910073] [2021-01-06 19:13:41,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:41,921 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 19:13:41,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513910073] [2021-01-06 19:13:41,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:41,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:13:41,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989980880] [2021-01-06 19:13:41,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:13:41,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:41,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:13:41,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:13:41,924 INFO L87 Difference]: Start difference. First operand 143 states and 197 transitions. Second operand 4 states. [2021-01-06 19:13:41,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:41,964 INFO L93 Difference]: Finished difference Result 382 states and 537 transitions. [2021-01-06 19:13:41,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:13:41,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-01-06 19:13:41,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:41,966 INFO L225 Difference]: With dead ends: 382 [2021-01-06 19:13:41,966 INFO L226 Difference]: Without dead ends: 286 [2021-01-06 19:13:41,967 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 19:13:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-01-06 19:13:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 143. [2021-01-06 19:13:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-01-06 19:13:41,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 196 transitions. [2021-01-06 19:13:41,983 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 196 transitions. Word has length 30 [2021-01-06 19:13:41,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:41,984 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 196 transitions. [2021-01-06 19:13:41,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:13:41,984 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 196 transitions. [2021-01-06 19:13:41,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-06 19:13:41,987 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:41,988 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] [2021-01-06 19:13:41,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:13:41,988 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:41,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:41,989 INFO L82 PathProgramCache]: Analyzing trace with hash 413418346, now seen corresponding path program 1 times [2021-01-06 19:13:41,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:41,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543466656] [2021-01-06 19:13:41,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:42,070 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 19:13:42,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543466656] [2021-01-06 19:13:42,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:42,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 19:13:42,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112492012] [2021-01-06 19:13:42,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:13:42,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:42,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:13:42,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:13:42,073 INFO L87 Difference]: Start difference. First operand 143 states and 196 transitions. Second operand 6 states. [2021-01-06 19:13:42,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:42,160 INFO L93 Difference]: Finished difference Result 484 states and 677 transitions. [2021-01-06 19:13:42,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 19:13:42,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2021-01-06 19:13:42,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:42,162 INFO L225 Difference]: With dead ends: 484 [2021-01-06 19:13:42,163 INFO L226 Difference]: Without dead ends: 347 [2021-01-06 19:13:42,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:13:42,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-01-06 19:13:42,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 149. [2021-01-06 19:13:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2021-01-06 19:13:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 201 transitions. [2021-01-06 19:13:42,180 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 201 transitions. Word has length 30 [2021-01-06 19:13:42,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:42,181 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 201 transitions. [2021-01-06 19:13:42,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:13:42,181 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 201 transitions. [2021-01-06 19:13:42,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 19:13:42,182 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:42,182 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 19:13:42,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:13:42,183 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:42,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:42,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1022834337, now seen corresponding path program 1 times [2021-01-06 19:13:42,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:42,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539716900] [2021-01-06 19:13:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:42,241 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 19:13:42,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539716900] [2021-01-06 19:13:42,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:42,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:13:42,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997897540] [2021-01-06 19:13:42,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:13:42,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:42,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:13:42,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:13:42,243 INFO L87 Difference]: Start difference. First operand 149 states and 201 transitions. Second operand 6 states. [2021-01-06 19:13:42,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:42,362 INFO L93 Difference]: Finished difference Result 773 states and 1048 transitions. [2021-01-06 19:13:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:13:42,363 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2021-01-06 19:13:42,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:42,366 INFO L225 Difference]: With dead ends: 773 [2021-01-06 19:13:42,366 INFO L226 Difference]: Without dead ends: 630 [2021-01-06 19:13:42,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:13:42,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-01-06 19:13:42,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 280. [2021-01-06 19:13:42,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2021-01-06 19:13:42,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 373 transitions. [2021-01-06 19:13:42,398 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 373 transitions. Word has length 33 [2021-01-06 19:13:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:42,399 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 373 transitions. [2021-01-06 19:13:42,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:13:42,399 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 373 transitions. [2021-01-06 19:13:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 19:13:42,400 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:42,400 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 19:13:42,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 19:13:42,401 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:42,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:42,402 INFO L82 PathProgramCache]: Analyzing trace with hash 752173025, now seen corresponding path program 1 times [2021-01-06 19:13:42,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:42,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923287020] [2021-01-06 19:13:42,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:42,464 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 19:13:42,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923287020] [2021-01-06 19:13:42,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:42,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:13:42,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684535915] [2021-01-06 19:13:42,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:42,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:42,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:42,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:42,467 INFO L87 Difference]: Start difference. First operand 280 states and 373 transitions. Second operand 5 states. [2021-01-06 19:13:42,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:42,638 INFO L93 Difference]: Finished difference Result 580 states and 779 transitions. [2021-01-06 19:13:42,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:13:42,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-01-06 19:13:42,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:42,641 INFO L225 Difference]: With dead ends: 580 [2021-01-06 19:13:42,641 INFO L226 Difference]: Without dead ends: 394 [2021-01-06 19:13:42,642 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 19:13:42,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-01-06 19:13:42,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 274. [2021-01-06 19:13:42,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-01-06 19:13:42,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 361 transitions. [2021-01-06 19:13:42,673 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 361 transitions. Word has length 33 [2021-01-06 19:13:42,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:42,673 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 361 transitions. [2021-01-06 19:13:42,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:42,673 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 361 transitions. [2021-01-06 19:13:42,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 19:13:42,675 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:42,675 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 19:13:42,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 19:13:42,675 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:42,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:42,676 INFO L82 PathProgramCache]: Analyzing trace with hash -130752981, now seen corresponding path program 1 times [2021-01-06 19:13:42,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:42,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899951807] [2021-01-06 19:13:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:42,727 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 19:13:42,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899951807] [2021-01-06 19:13:42,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:42,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:13:42,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086181025] [2021-01-06 19:13:42,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:42,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:42,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:42,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:42,730 INFO L87 Difference]: Start difference. First operand 274 states and 361 transitions. Second operand 5 states. [2021-01-06 19:13:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:42,790 INFO L93 Difference]: Finished difference Result 618 states and 817 transitions. [2021-01-06 19:13:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:13:42,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2021-01-06 19:13:42,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:42,793 INFO L225 Difference]: With dead ends: 618 [2021-01-06 19:13:42,793 INFO L226 Difference]: Without dead ends: 350 [2021-01-06 19:13:42,794 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 19:13:42,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-01-06 19:13:42,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 274. [2021-01-06 19:13:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-01-06 19:13:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 357 transitions. [2021-01-06 19:13:42,824 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 357 transitions. Word has length 47 [2021-01-06 19:13:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:42,825 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 357 transitions. [2021-01-06 19:13:42,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:42,825 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 357 transitions. [2021-01-06 19:13:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 19:13:42,826 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:42,826 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 19:13:42,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:13:42,826 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:42,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:42,827 INFO L82 PathProgramCache]: Analyzing trace with hash -640226071, now seen corresponding path program 1 times [2021-01-06 19:13:42,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:42,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759620233] [2021-01-06 19:13:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:42,880 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 19:13:42,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759620233] [2021-01-06 19:13:42,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:13:42,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:13:42,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535149287] [2021-01-06 19:13:42,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:13:42,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:42,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:13:42,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:13:42,882 INFO L87 Difference]: Start difference. First operand 274 states and 357 transitions. Second operand 5 states. [2021-01-06 19:13:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:42,939 INFO L93 Difference]: Finished difference Result 532 states and 697 transitions. [2021-01-06 19:13:42,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:13:42,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2021-01-06 19:13:42,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:42,942 INFO L225 Difference]: With dead ends: 532 [2021-01-06 19:13:42,942 INFO L226 Difference]: Without dead ends: 264 [2021-01-06 19:13:42,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 19:13:42,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-01-06 19:13:42,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 220. [2021-01-06 19:13:42,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2021-01-06 19:13:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 286 transitions. [2021-01-06 19:13:42,968 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 286 transitions. Word has length 47 [2021-01-06 19:13:42,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:42,968 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 286 transitions. [2021-01-06 19:13:42,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:13:42,968 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 286 transitions. [2021-01-06 19:13:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-06 19:13:42,969 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:42,969 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 19:13:42,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 19:13:42,970 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:42,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:42,970 INFO L82 PathProgramCache]: Analyzing trace with hash -445753367, now seen corresponding path program 1 times [2021-01-06 19:13:42,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:42,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022993148] [2021-01-06 19:13:42,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:43,050 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 19:13:43,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022993148] [2021-01-06 19:13:43,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934851051] [2021-01-06 19:13:43,051 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 19:13:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:13:43,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 19:13:43,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:13:43,293 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 19:13:43,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:13:43,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-01-06 19:13:43,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484643384] [2021-01-06 19:13:43,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:13:43,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:13:43,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:13:43,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:13:43,300 INFO L87 Difference]: Start difference. First operand 220 states and 286 transitions. Second operand 6 states. [2021-01-06 19:13:43,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:13:43,500 INFO L93 Difference]: Finished difference Result 635 states and 843 transitions. [2021-01-06 19:13:43,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:13:43,501 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2021-01-06 19:13:43,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:13:43,504 INFO L225 Difference]: With dead ends: 635 [2021-01-06 19:13:43,504 INFO L226 Difference]: Without dead ends: 467 [2021-01-06 19:13:43,505 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 19:13:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-01-06 19:13:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 302. [2021-01-06 19:13:43,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2021-01-06 19:13:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 396 transitions. [2021-01-06 19:13:43,545 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 396 transitions. Word has length 48 [2021-01-06 19:13:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:13:43,546 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 396 transitions. [2021-01-06 19:13:43,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:13:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 396 transitions. [2021-01-06 19:13:43,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 19:13:43,547 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:13:43,547 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 19:13:43,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 19:13:43,762 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:13:43,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:13:43,764 INFO L82 PathProgramCache]: Analyzing trace with hash -2129580319, now seen corresponding path program 2 times [2021-01-06 19:13:43,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:13:43,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226960071] [2021-01-06 19:13:43,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:13:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 19:13:43,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 19:13:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 19:13:43,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 19:13:44,002 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 19:13:44,003 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 19:13:44,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 19:13:44,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 07:13:44 BoogieIcfgContainer [2021-01-06 19:13:44,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 19:13:44,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 19:13:44,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 19:13:44,198 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 19:13:44,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:13:40" (3/4) ... [2021-01-06 19:13:44,200 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 19:13:44,393 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product41.cil.c-witness.graphml [2021-01-06 19:13:44,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 19:13:44,396 INFO L168 Benchmark]: Toolchain (without parser) took 6232.34 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 125.7 MB in the beginning and 138.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 55.6 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:44,396 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 19:13:44,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.56 ms. Allocated memory is still 152.0 MB. Free memory was 125.6 MB in the beginning and 104.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:44,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.45 ms. Allocated memory is still 152.0 MB. Free memory was 104.4 MB in the beginning and 101.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:44,398 INFO L168 Benchmark]: Boogie Preprocessor took 82.84 ms. Allocated memory is still 152.0 MB. Free memory was 101.3 MB in the beginning and 99.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:44,399 INFO L168 Benchmark]: RCFGBuilder took 1117.16 ms. Allocated memory is still 152.0 MB. Free memory was 99.0 MB in the beginning and 79.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:44,400 INFO L168 Benchmark]: TraceAbstraction took 4035.10 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 79.4 MB in the beginning and 163.7 MB in the end (delta: -84.4 MB). Peak memory consumption was 57.1 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:44,400 INFO L168 Benchmark]: Witness Printer took 196.43 ms. Allocated memory is still 219.2 MB. Free memory was 163.7 MB in the beginning and 138.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-01-06 19:13:44,402 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 712.56 ms. Allocated memory is still 152.0 MB. Free memory was 125.6 MB in the beginning and 104.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 76.45 ms. Allocated memory is still 152.0 MB. Free memory was 104.4 MB in the beginning and 101.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 82.84 ms. Allocated memory is still 152.0 MB. Free memory was 101.3 MB in the beginning and 99.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1117.16 ms. Allocated memory is still 152.0 MB. Free memory was 99.0 MB in the beginning and 79.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4035.10 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 79.4 MB in the beginning and 163.7 MB in the end (delta: -84.4 MB). Peak memory consumption was 57.1 MB. Max. memory is 8.0 GB. * Witness Printer took 196.43 ms. Allocated memory is still 219.2 MB. Free memory was 163.7 MB in the beginning and 138.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 213]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L387] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; [L824] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L897] int retValue_acc ; [L898] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L200] int retValue_acc ; [L203] retValue_acc = 1 [L204] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L587] int splverifierCounter ; [L588] int tmp ; [L589] int tmp___0 ; [L590] int tmp___1 ; [L591] int tmp___2 ; [L594] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L604] tmp = __VERIFIER_nondet_int() [L606] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L661] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND TRUE ! pumpRunning [L805] int retValue_acc ; [L806] int tmp ; [L807] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L811] tmp = isHighWaterSensorDry() [L813] COND FALSE !(\read(tmp)) [L816] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] retValue_acc = tmp___0 [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] tmp = isHighWaterLevel() [L697] COND TRUE \read(tmp) [L724] int tmp ; [L749] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] retValue_acc = isMethaneLevelCritical() [L755] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp = isMethaneAlarm() [L730] COND FALSE !(\read(tmp)) [L718] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L151] tmp = getWaterLevel() [L153] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L604] tmp = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L693] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L151] tmp = getWaterLevel() [L153] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L604] tmp = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L661] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L693] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L151] tmp = getWaterLevel() [L153] COND TRUE tmp == 0 [L760] int retValue_acc ; [L763] retValue_acc = pumpRunning [L764] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L155] tmp___0 = isPumpRunning() [L157] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L213] 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, 87 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1063 SDtfs, 1392 SDslu, 1649 SDs, 0 SdLazy, 238 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=13, 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, 13 MinimizatonAttempts, 1156 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 516 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 439 ConstructedInterpolants, 0 QuantifiedInterpolants, 29746 SizeOfPredicates, 3 NumberOfNonLiveVariables, 413 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 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...