/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_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:16:32,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:16:32,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:16:32,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:16:32,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:16:32,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:16:32,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:16:32,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:16:32,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:16:32,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:16:32,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:16:32,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:16:32,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:16:32,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:16:32,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:16:32,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:16:32,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:16:32,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:16:32,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:16:32,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:16:32,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:16:32,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:16:32,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:16:32,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:16:32,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:16:32,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:16:32,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:16:32,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:16:32,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:16:32,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:16:32,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:16:32,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:16:32,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:16:32,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:16:32,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:16:32,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:16:32,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:16:32,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:16:32,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:16:32,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:16:32,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:16:32,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 09:16:32,315 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:16:32,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:16:32,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:16:32,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:16:32,318 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:16:32,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:16:32,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:16:32,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:16:32,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:16:32,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:16:32,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:16:32,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:16:32,319 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:16:32,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:16:32,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:16:32,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:16:32,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:16:32,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:16:32,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:16:32,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:16:32,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:16:32,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:16:32,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:16:32,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:16:32,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:16:32,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:16:32,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:16:32,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:16:32,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:16:32,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:16:32,749 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:16:32,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2020-12-23 09:16:32,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/03c20ac57/0f5f7863b7634fb481ee7cd031c0d896/FLAG5364e5d5c [2020-12-23 09:16:33,455 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:16:33,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2020-12-23 09:16:33,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/03c20ac57/0f5f7863b7634fb481ee7cd031c0d896/FLAG5364e5d5c [2020-12-23 09:16:33,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/03c20ac57/0f5f7863b7634fb481ee7cd031c0d896 [2020-12-23 09:16:33,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:16:33,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:16:33,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:16:33,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:16:33,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:16:33,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:16:33" (1/1) ... [2020-12-23 09:16:33,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672fbca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:33, skipping insertion in model container [2020-12-23 09:16:33,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:16:33" (1/1) ... [2020-12-23 09:16:33,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:16:33,831 INFO L178 MainTranslator]: Built tables and reachable declarations 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~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] 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~1,] 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~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] 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~2,] 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~3,] [2020-12-23 09:16:34,122 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_spec1_product34.cil.c[12260,12273] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] 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[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] [2020-12-23 09:16:34,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:16:34,197 INFO L203 MainTranslator]: Completed pre-run 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~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] 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~1,] 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~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] 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~2,] 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~3,] [2020-12-23 09:16:34,319 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_spec1_product34.cil.c[12260,12273] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] 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[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] [2020-12-23 09:16:34,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:16:34,381 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:16:34,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34 WrapperNode [2020-12-23 09:16:34,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:16:34,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:16:34,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:16:34,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:16:34,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:16:34,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:16:34,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:16:34,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:16:34,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (1/1) ... [2020-12-23 09:16:34,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:16:34,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:16:34,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:16:34,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:16:34,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (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 [2020-12-23 09:16:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:16:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:16:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:16:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:16:35,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:16:35,529 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2020-12-23 09:16:35,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:16:35 BoogieIcfgContainer [2020-12-23 09:16:35,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:16:35,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:16:35,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:16:35,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:16:35,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:16:33" (1/3) ... [2020-12-23 09:16:35,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c03d896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:16:35, skipping insertion in model container [2020-12-23 09:16:35,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:16:34" (2/3) ... [2020-12-23 09:16:35,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c03d896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:16:35, skipping insertion in model container [2020-12-23 09:16:35,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:16:35" (3/3) ... [2020-12-23 09:16:35,541 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2020-12-23 09:16:35,549 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:16:35,555 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-23 09:16:35,576 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 09:16:35,603 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:16:35,604 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:16:35,604 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:16:35,604 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:16:35,604 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:16:35,604 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:16:35,604 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:16:35,605 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:16:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-12-23 09:16:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 09:16:35,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:35,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:16:35,627 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:35,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:35,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1424204181, now seen corresponding path program 1 times [2020-12-23 09:16:35,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:35,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223680103] [2020-12-23 09:16:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:35,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223680103] [2020-12-23 09:16:35,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:35,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:16:35,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946423948] [2020-12-23 09:16:35,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 09:16:35,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:36,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 09:16:36,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 09:16:36,018 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-12-23 09:16:36,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:36,051 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2020-12-23 09:16:36,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 09:16:36,053 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-23 09:16:36,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:36,066 INFO L225 Difference]: With dead ends: 150 [2020-12-23 09:16:36,066 INFO L226 Difference]: Without dead ends: 74 [2020-12-23 09:16:36,074 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 [2020-12-23 09:16:36,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-23 09:16:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-12-23 09:16:36,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-23 09:16:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-12-23 09:16:36,130 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2020-12-23 09:16:36,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:36,131 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-12-23 09:16:36,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 09:16:36,131 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-12-23 09:16:36,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 09:16:36,133 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:36,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:16:36,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:16:36,134 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:36,135 INFO L82 PathProgramCache]: Analyzing trace with hash -631654862, now seen corresponding path program 1 times [2020-12-23 09:16:36,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:36,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504901935] [2020-12-23 09:16:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:36,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504901935] [2020-12-23 09:16:36,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:36,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:16:36,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834636566] [2020-12-23 09:16:36,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:16:36,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:36,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:16:36,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:16:36,310 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 3 states. [2020-12-23 09:16:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:36,335 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2020-12-23 09:16:36,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:16:36,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-23 09:16:36,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:36,337 INFO L225 Difference]: With dead ends: 74 [2020-12-23 09:16:36,337 INFO L226 Difference]: Without dead ends: 34 [2020-12-23 09:16:36,339 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 [2020-12-23 09:16:36,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-23 09:16:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-23 09:16:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-23 09:16:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-12-23 09:16:36,345 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2020-12-23 09:16:36,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:36,346 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-12-23 09:16:36,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:16:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-12-23 09:16:36,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 09:16:36,347 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:36,347 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] [2020-12-23 09:16:36,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:16:36,348 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:36,349 INFO L82 PathProgramCache]: Analyzing trace with hash -964945646, now seen corresponding path program 1 times [2020-12-23 09:16:36,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:36,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828734008] [2020-12-23 09:16:36,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:36,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828734008] [2020-12-23 09:16:36,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:36,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:16:36,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640064982] [2020-12-23 09:16:36,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:16:36,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:36,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:16:36,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:16:36,436 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 3 states. [2020-12-23 09:16:36,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:36,467 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2020-12-23 09:16:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:16:36,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-23 09:16:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:36,470 INFO L225 Difference]: With dead ends: 62 [2020-12-23 09:16:36,470 INFO L226 Difference]: Without dead ends: 34 [2020-12-23 09:16:36,471 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 [2020-12-23 09:16:36,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-23 09:16:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-23 09:16:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-23 09:16:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2020-12-23 09:16:36,477 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2020-12-23 09:16:36,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:36,477 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2020-12-23 09:16:36,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:16:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2020-12-23 09:16:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 09:16:36,478 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:36,519 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] [2020-12-23 09:16:36,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:16:36,520 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:36,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:36,521 INFO L82 PathProgramCache]: Analyzing trace with hash -952202930, now seen corresponding path program 1 times [2020-12-23 09:16:36,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:36,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617180429] [2020-12-23 09:16:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:36,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617180429] [2020-12-23 09:16:36,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:36,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:16:36,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616697265] [2020-12-23 09:16:36,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:16:36,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:36,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:16:36,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:16:36,594 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2020-12-23 09:16:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:36,630 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2020-12-23 09:16:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:16:36,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-23 09:16:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:36,632 INFO L225 Difference]: With dead ends: 83 [2020-12-23 09:16:36,632 INFO L226 Difference]: Without dead ends: 55 [2020-12-23 09:16:36,633 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 [2020-12-23 09:16:36,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-23 09:16:36,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-12-23 09:16:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-23 09:16:36,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2020-12-23 09:16:36,643 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2020-12-23 09:16:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:36,646 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2020-12-23 09:16:36,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:16:36,647 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2020-12-23 09:16:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-23 09:16:36,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:36,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:16:36,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:16:36,649 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:36,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:36,651 INFO L82 PathProgramCache]: Analyzing trace with hash -2049720417, now seen corresponding path program 1 times [2020-12-23 09:16:36,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:36,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620910981] [2020-12-23 09:16:36,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:36,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620910981] [2020-12-23 09:16:36,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:36,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:16:36,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189352969] [2020-12-23 09:16:36,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:16:36,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:36,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:16:36,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:16:36,797 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2020-12-23 09:16:36,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:36,862 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2020-12-23 09:16:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:16:36,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-12-23 09:16:36,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:36,864 INFO L225 Difference]: With dead ends: 139 [2020-12-23 09:16:36,865 INFO L226 Difference]: Without dead ends: 92 [2020-12-23 09:16:36,866 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 [2020-12-23 09:16:36,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-23 09:16:36,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2020-12-23 09:16:36,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-23 09:16:36,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-12-23 09:16:36,875 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2020-12-23 09:16:36,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:36,876 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-12-23 09:16:36,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:16:36,876 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-12-23 09:16:36,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-23 09:16:36,877 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:36,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:16:36,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:16:36,878 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:36,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:36,879 INFO L82 PathProgramCache]: Analyzing trace with hash 612790626, now seen corresponding path program 1 times [2020-12-23 09:16:36,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:36,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025833416] [2020-12-23 09:16:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:36,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025833416] [2020-12-23 09:16:36,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:36,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:16:36,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473297747] [2020-12-23 09:16:36,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:16:36,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:36,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:16:36,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:16:36,951 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 5 states. [2020-12-23 09:16:37,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:37,024 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2020-12-23 09:16:37,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 09:16:37,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-12-23 09:16:37,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:37,026 INFO L225 Difference]: With dead ends: 270 [2020-12-23 09:16:37,027 INFO L226 Difference]: Without dead ends: 220 [2020-12-23 09:16:37,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:16:37,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-12-23 09:16:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 100. [2020-12-23 09:16:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-23 09:16:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2020-12-23 09:16:37,063 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 29 [2020-12-23 09:16:37,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:37,063 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2020-12-23 09:16:37,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:16:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2020-12-23 09:16:37,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-23 09:16:37,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:37,067 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] [2020-12-23 09:16:37,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:16:37,068 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:37,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:37,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1166654740, now seen corresponding path program 1 times [2020-12-23 09:16:37,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:37,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294576864] [2020-12-23 09:16:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:37,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:37,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294576864] [2020-12-23 09:16:37,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:37,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:16:37,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721097959] [2020-12-23 09:16:37,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:16:37,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:37,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:16:37,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:16:37,173 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand 5 states. [2020-12-23 09:16:37,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:37,276 INFO L93 Difference]: Finished difference Result 280 states and 386 transitions. [2020-12-23 09:16:37,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 09:16:37,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-12-23 09:16:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:37,279 INFO L225 Difference]: With dead ends: 280 [2020-12-23 09:16:37,279 INFO L226 Difference]: Without dead ends: 278 [2020-12-23 09:16:37,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:16:37,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-12-23 09:16:37,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2020-12-23 09:16:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-23 09:16:37,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2020-12-23 09:16:37,295 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 30 [2020-12-23 09:16:37,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:37,295 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2020-12-23 09:16:37,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:16:37,295 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2020-12-23 09:16:37,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-23 09:16:37,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:37,297 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] [2020-12-23 09:16:37,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:16:37,298 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:37,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:37,298 INFO L82 PathProgramCache]: Analyzing trace with hash 72774503, now seen corresponding path program 1 times [2020-12-23 09:16:37,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:37,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466078519] [2020-12-23 09:16:37,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:37,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466078519] [2020-12-23 09:16:37,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:37,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:16:37,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111028237] [2020-12-23 09:16:37,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:16:37,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:37,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:16:37,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:16:37,350 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand 4 states. [2020-12-23 09:16:37,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:37,383 INFO L93 Difference]: Finished difference Result 240 states and 326 transitions. [2020-12-23 09:16:37,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:16:37,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-12-23 09:16:37,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:37,385 INFO L225 Difference]: With dead ends: 240 [2020-12-23 09:16:37,386 INFO L226 Difference]: Without dead ends: 146 [2020-12-23 09:16:37,386 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 [2020-12-23 09:16:37,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-12-23 09:16:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 104. [2020-12-23 09:16:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-23 09:16:37,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2020-12-23 09:16:37,399 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 30 [2020-12-23 09:16:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:37,399 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2020-12-23 09:16:37,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:16:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2020-12-23 09:16:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-23 09:16:37,401 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:37,401 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] [2020-12-23 09:16:37,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:16:37,401 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:37,402 INFO L82 PathProgramCache]: Analyzing trace with hash 330939941, now seen corresponding path program 1 times [2020-12-23 09:16:37,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:37,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246561564] [2020-12-23 09:16:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:16:37,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:16:37,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246561564] [2020-12-23 09:16:37,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:16:37,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:16:37,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085008608] [2020-12-23 09:16:37,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:16:37,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:16:37,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:16:37,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:16:37,448 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand 3 states. [2020-12-23 09:16:37,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:16:37,492 INFO L93 Difference]: Finished difference Result 250 states and 336 transitions. [2020-12-23 09:16:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:16:37,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-12-23 09:16:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:16:37,494 INFO L225 Difference]: With dead ends: 250 [2020-12-23 09:16:37,494 INFO L226 Difference]: Without dead ends: 152 [2020-12-23 09:16:37,495 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 [2020-12-23 09:16:37,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-12-23 09:16:37,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-12-23 09:16:37,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-12-23 09:16:37,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2020-12-23 09:16:37,512 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 30 [2020-12-23 09:16:37,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:16:37,512 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2020-12-23 09:16:37,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:16:37,512 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2020-12-23 09:16:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-23 09:16:37,514 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:16:37,514 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] [2020-12-23 09:16:37,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:16:37,515 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:16:37,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:16:37,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1676876253, now seen corresponding path program 1 times [2020-12-23 09:16:37,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:16:37,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10427905] [2020-12-23 09:16:37,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:16:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 09:16:37,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 09:16:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 09:16:37,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 09:16:37,752 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 09:16:37,752 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 09:16:37,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:16:37,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:16:37 BoogieIcfgContainer [2020-12-23 09:16:37,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 09:16:37,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 09:16:37,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 09:16:37,887 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 09:16:37,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:16:35" (3/4) ... [2020-12-23 09:16:37,890 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 09:16:38,000 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec1_product34.cil.c-witness.graphml [2020-12-23 09:16:38,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 09:16:38,003 INFO L168 Benchmark]: Toolchain (without parser) took 4248.59 ms. Allocated memory was 168.8 MB in the beginning and 215.0 MB in the end (delta: 46.1 MB). Free memory was 142.8 MB in the beginning and 144.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 45.0 MB. Max. memory is 8.0 GB. [2020-12-23 09:16:38,004 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 168.8 MB. Free memory is still 140.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 09:16:38,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.68 ms. Allocated memory is still 168.8 MB. Free memory was 142.6 MB in the beginning and 121.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-23 09:16:38,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.17 ms. Allocated memory is still 168.8 MB. Free memory was 121.7 MB in the beginning and 118.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:16:38,005 INFO L168 Benchmark]: Boogie Preprocessor took 59.28 ms. Allocated memory is still 168.8 MB. Free memory was 118.7 MB in the beginning and 116.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:16:38,006 INFO L168 Benchmark]: RCFGBuilder took 988.32 ms. Allocated memory is still 168.8 MB. Free memory was 116.6 MB in the beginning and 100.4 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. [2020-12-23 09:16:38,007 INFO L168 Benchmark]: TraceAbstraction took 2352.95 ms. Allocated memory was 168.8 MB in the beginning and 215.0 MB in the end (delta: 46.1 MB). Free memory was 99.8 MB in the beginning and 157.7 MB in the end (delta: -57.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 09:16:38,007 INFO L168 Benchmark]: Witness Printer took 113.95 ms. Allocated memory is still 215.0 MB. Free memory was 157.7 MB in the beginning and 144.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-23 09:16:38,012 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 168.8 MB. Free memory is still 140.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 626.68 ms. Allocated memory is still 168.8 MB. Free memory was 142.6 MB in the beginning and 121.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 99.17 ms. Allocated memory is still 168.8 MB. Free memory was 121.7 MB in the beginning and 118.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.28 ms. Allocated memory is still 168.8 MB. Free memory was 118.7 MB in the beginning and 116.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 988.32 ms. Allocated memory is still 168.8 MB. Free memory was 116.6 MB in the beginning and 100.4 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2352.95 ms. Allocated memory was 168.8 MB in the beginning and 215.0 MB in the end (delta: 46.1 MB). Free memory was 99.8 MB in the beginning and 157.7 MB in the end (delta: -57.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 113.95 ms. Allocated memory is still 215.0 MB. Free memory was 157.7 MB in the beginning and 144.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L526] int waterLevel = 1; [L527] int methaneLevelCritical = 0; [L691] int pumpRunning = 0; [L692] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] int retValue_acc ; [L907] retValue_acc = 1 [L908] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L622] int splverifierCounter ; [L623] int tmp ; [L624] int tmp___0 ; [L625] int tmp___1 ; [L626] int tmp___2 ; [L629] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L631] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L639] tmp = __VERIFIER_nondet_int() [L641] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L544] COND TRUE waterLevel < 2 [L545] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L649] tmp___0 = __VERIFIER_nondet_int() [L651] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] COND FALSE !(\read(methaneLevelCritical)) [L559] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L659] tmp___2 = __VERIFIER_nondet_int() [L661] COND TRUE \read(tmp___2) [L847] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L699] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L706] COND TRUE \read(systemActive) [L728] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] COND TRUE ! pumpRunning [L825] int retValue_acc ; [L826] int tmp ; [L827] int tmp___0 ; [L606] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L609] COND FALSE !(waterLevel < 2) [L613] retValue_acc = 0 [L614] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L831] tmp = isHighWaterSensorDry() [L833] COND FALSE !(\read(tmp)) [L836] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L838] retValue_acc = tmp___0 [L839] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L733] tmp = isHighWaterLevel() [L735] COND TRUE \read(tmp) [L756] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L853] int tmp ; [L854] int tmp___0 ; [L565] int retValue_acc ; [L568] retValue_acc = methaneLevelCritical [L569] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L858] tmp = isMethaneLevelCritical() [L860] COND TRUE \read(tmp) [L780] int retValue_acc ; [L783] retValue_acc = pumpRunning [L784] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L862] tmp___0 = isPumpRunning() [L864] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 579 SDtfs, 635 SDslu, 752 SDs, 0 SdLazy, 98 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 378 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 10701 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...