/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_spec2_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:18:03,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:18:03,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:18:03,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:18:03,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:18:03,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:18:03,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:18:03,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:18:03,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:18:03,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:18:03,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:18:03,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:18:03,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:18:03,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:18:03,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:18:03,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:18:03,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:18:03,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:18:03,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:18:03,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:18:03,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:18:03,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:18:03,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:18:03,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:18:03,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:18:03,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:18:03,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:18:03,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:18:03,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:18:03,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:18:03,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:18:03,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:18:03,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:18:03,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:18:03,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:18:03,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:18:03,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:18:03,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:18:03,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:18:03,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:18:03,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:18:03,296 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 09:18:03,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:18:03,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:18:03,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:18:03,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:18:03,339 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:18:03,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:18:03,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:18:03,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:18:03,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:18:03,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:18:03,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:18:03,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:18:03,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:18:03,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:18:03,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:18:03,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:18:03,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:18:03,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:18:03,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:18:03,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:18:03,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:18:03,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:18:03,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:18:03,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:18:03,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:18:03,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:18:03,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:18:03,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:18:03,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:18:03,841 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:18:03,841 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:18:03,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2020-12-23 09:18:03,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a64173263/8b2f17aa228d4a439344227371a5bcd5/FLAGe9eed0a4e [2020-12-23 09:18:04,557 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:18:04,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2020-12-23 09:18:04,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a64173263/8b2f17aa228d4a439344227371a5bcd5/FLAGe9eed0a4e [2020-12-23 09:18:04,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a64173263/8b2f17aa228d4a439344227371a5bcd5 [2020-12-23 09:18:04,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:18:04,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:18:04,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:18:04,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:18:04,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:18:04,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:18:04" (1/1) ... [2020-12-23 09:18:04,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5606674f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:04, skipping insertion in model container [2020-12-23 09:18:04,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:18:04" (1/1) ... [2020-12-23 09:18:04,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:18:04,969 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] 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~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] 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[~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~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] 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~8,] 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~9,] 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~11,] 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~11,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] 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~12,] 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~13,] [2020-12-23 09:18:05,420 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_spec2_product52.cil.c[18853,18866] [2020-12-23 09:18:05,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:18:05,436 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] 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~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] 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[~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~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] 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~8,] 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~9,] 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~11,] 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~11,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] 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~12,] 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~13,] [2020-12-23 09:18:05,636 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_spec2_product52.cil.c[18853,18866] [2020-12-23 09:18:05,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:18:05,688 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:18:05,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05 WrapperNode [2020-12-23 09:18:05,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:18:05,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:18:05,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:18:05,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:18:05,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:18:05,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:18:05,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:18:05,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:18:05,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (1/1) ... [2020-12-23 09:18:05,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:18:05,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:18:05,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:18:05,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:18:05,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (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 09:18:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:18:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:18:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:18:06,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:18:07,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:18:07,259 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2020-12-23 09:18:07,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:18:07 BoogieIcfgContainer [2020-12-23 09:18:07,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:18:07,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:18:07,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:18:07,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:18:07,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:18:04" (1/3) ... [2020-12-23 09:18:07,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8e771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:18:07, skipping insertion in model container [2020-12-23 09:18:07,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:18:05" (2/3) ... [2020-12-23 09:18:07,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8e771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:18:07, skipping insertion in model container [2020-12-23 09:18:07,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:18:07" (3/3) ... [2020-12-23 09:18:07,271 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2020-12-23 09:18:07,278 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:18:07,284 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-23 09:18:07,304 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 09:18:07,333 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:18:07,334 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:18:07,334 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:18:07,334 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:18:07,334 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:18:07,334 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:18:07,335 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:18:07,335 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:18:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-12-23 09:18:07,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 09:18:07,361 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:07,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:07,362 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:07,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:07,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1471206820, now seen corresponding path program 1 times [2020-12-23 09:18:07,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:07,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696343271] [2020-12-23 09:18:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:07,770 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 09:18:07,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696343271] [2020-12-23 09:18:07,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:07,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:18:07,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835460256] [2020-12-23 09:18:07,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 09:18:07,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:07,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 09:18:07,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 09:18:07,799 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2020-12-23 09:18:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:07,839 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2020-12-23 09:18:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 09:18:07,841 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-23 09:18:07,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:07,855 INFO L225 Difference]: With dead ends: 239 [2020-12-23 09:18:07,855 INFO L226 Difference]: Without dead ends: 119 [2020-12-23 09:18:07,860 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 09:18:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-23 09:18:07,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-12-23 09:18:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-23 09:18:07,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2020-12-23 09:18:07,914 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2020-12-23 09:18:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:07,915 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2020-12-23 09:18:07,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 09:18:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2020-12-23 09:18:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 09:18:07,916 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:07,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:07,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:18:07,917 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:07,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:07,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1252370851, now seen corresponding path program 1 times [2020-12-23 09:18:07,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:07,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688847209] [2020-12-23 09:18:07,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:08,021 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 09:18:08,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688847209] [2020-12-23 09:18:08,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:08,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:18:08,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974219782] [2020-12-23 09:18:08,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:18:08,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:08,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:18:08,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:18:08,030 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand 3 states. [2020-12-23 09:18:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:08,065 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2020-12-23 09:18:08,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:18:08,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-23 09:18:08,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:08,072 INFO L225 Difference]: With dead ends: 119 [2020-12-23 09:18:08,072 INFO L226 Difference]: Without dead ends: 51 [2020-12-23 09:18:08,075 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 09:18:08,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-23 09:18:08,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-12-23 09:18:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-23 09:18:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-12-23 09:18:08,092 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2020-12-23 09:18:08,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:08,092 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-12-23 09:18:08,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:18:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-12-23 09:18:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 09:18:08,096 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:08,096 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] [2020-12-23 09:18:08,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:18:08,097 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:08,100 INFO L82 PathProgramCache]: Analyzing trace with hash 70895168, now seen corresponding path program 1 times [2020-12-23 09:18:08,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:08,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887157262] [2020-12-23 09:18:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:08,238 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 09:18:08,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887157262] [2020-12-23 09:18:08,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:08,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:18:08,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186476088] [2020-12-23 09:18:08,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:18:08,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:08,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:18:08,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:18:08,241 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 5 states. [2020-12-23 09:18:08,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:08,336 INFO L93 Difference]: Finished difference Result 119 states and 177 transitions. [2020-12-23 09:18:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:18:08,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-23 09:18:08,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:08,339 INFO L225 Difference]: With dead ends: 119 [2020-12-23 09:18:08,339 INFO L226 Difference]: Without dead ends: 75 [2020-12-23 09:18:08,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:18:08,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-12-23 09:18:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2020-12-23 09:18:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-23 09:18:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2020-12-23 09:18:08,351 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 24 [2020-12-23 09:18:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:08,351 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2020-12-23 09:18:08,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:18:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2020-12-23 09:18:08,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 09:18:08,353 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:08,353 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] [2020-12-23 09:18:08,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:18:08,354 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:08,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:08,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2090863582, now seen corresponding path program 1 times [2020-12-23 09:18:08,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:08,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323376706] [2020-12-23 09:18:08,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:08,435 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 09:18:08,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323376706] [2020-12-23 09:18:08,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:08,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:18:08,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898524682] [2020-12-23 09:18:08,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:18:08,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:08,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:18:08,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:18:08,438 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 3 states. [2020-12-23 09:18:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:08,552 INFO L93 Difference]: Finished difference Result 157 states and 235 transitions. [2020-12-23 09:18:08,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:18:08,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-23 09:18:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:08,556 INFO L225 Difference]: With dead ends: 157 [2020-12-23 09:18:08,556 INFO L226 Difference]: Without dead ends: 93 [2020-12-23 09:18:08,557 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 09:18:08,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-23 09:18:08,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-12-23 09:18:08,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-12-23 09:18:08,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2020-12-23 09:18:08,582 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 26 [2020-12-23 09:18:08,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:08,583 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2020-12-23 09:18:08,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:18:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2020-12-23 09:18:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-23 09:18:08,591 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:08,592 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] [2020-12-23 09:18:08,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:18:08,592 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:08,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1765382007, now seen corresponding path program 1 times [2020-12-23 09:18:08,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:08,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203942035] [2020-12-23 09:18:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:08,777 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 09:18:08,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203942035] [2020-12-23 09:18:08,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:08,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:18:08,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424878084] [2020-12-23 09:18:08,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:18:08,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:08,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:18:08,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:18:08,781 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand 5 states. [2020-12-23 09:18:08,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:08,947 INFO L93 Difference]: Finished difference Result 452 states and 663 transitions. [2020-12-23 09:18:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 09:18:08,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-23 09:18:08,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:08,954 INFO L225 Difference]: With dead ends: 452 [2020-12-23 09:18:08,954 INFO L226 Difference]: Without dead ends: 368 [2020-12-23 09:18:08,957 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 09:18:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-12-23 09:18:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 164. [2020-12-23 09:18:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-23 09:18:09,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 233 transitions. [2020-12-23 09:18:09,005 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 233 transitions. Word has length 27 [2020-12-23 09:18:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:09,006 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 233 transitions. [2020-12-23 09:18:09,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:18:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2020-12-23 09:18:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-23 09:18:09,007 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:09,007 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] [2020-12-23 09:18:09,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:18:09,008 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:09,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:09,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1095440129, now seen corresponding path program 1 times [2020-12-23 09:18:09,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:09,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927005536] [2020-12-23 09:18:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:09,094 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 09:18:09,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927005536] [2020-12-23 09:18:09,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:09,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:18:09,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065393276] [2020-12-23 09:18:09,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:18:09,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:09,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:18:09,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:18:09,098 INFO L87 Difference]: Start difference. First operand 164 states and 233 transitions. Second operand 5 states. [2020-12-23 09:18:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:09,339 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2020-12-23 09:18:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 09:18:09,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-12-23 09:18:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:09,343 INFO L225 Difference]: With dead ends: 605 [2020-12-23 09:18:09,343 INFO L226 Difference]: Without dead ends: 448 [2020-12-23 09:18:09,345 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 09:18:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-12-23 09:18:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 162. [2020-12-23 09:18:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-23 09:18:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 227 transitions. [2020-12-23 09:18:09,368 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 227 transitions. Word has length 28 [2020-12-23 09:18:09,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:09,368 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 227 transitions. [2020-12-23 09:18:09,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:18:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 227 transitions. [2020-12-23 09:18:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 09:18:09,369 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:09,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:09,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:18:09,370 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:09,371 INFO L82 PathProgramCache]: Analyzing trace with hash 494548661, now seen corresponding path program 1 times [2020-12-23 09:18:09,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:09,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082034556] [2020-12-23 09:18:09,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:09,442 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 09:18:09,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082034556] [2020-12-23 09:18:09,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:09,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:18:09,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027162934] [2020-12-23 09:18:09,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:18:09,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:09,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:18:09,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:18:09,446 INFO L87 Difference]: Start difference. First operand 162 states and 227 transitions. Second operand 5 states. [2020-12-23 09:18:09,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:09,570 INFO L93 Difference]: Finished difference Result 479 states and 665 transitions. [2020-12-23 09:18:09,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:18:09,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-23 09:18:09,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:09,573 INFO L225 Difference]: With dead ends: 479 [2020-12-23 09:18:09,573 INFO L226 Difference]: Without dead ends: 324 [2020-12-23 09:18:09,574 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 09:18:09,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-12-23 09:18:09,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 174. [2020-12-23 09:18:09,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-23 09:18:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 239 transitions. [2020-12-23 09:18:09,621 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 239 transitions. Word has length 33 [2020-12-23 09:18:09,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:09,622 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 239 transitions. [2020-12-23 09:18:09,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:18:09,622 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 239 transitions. [2020-12-23 09:18:09,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 09:18:09,623 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:09,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:09,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:18:09,623 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:09,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:09,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1195613239, now seen corresponding path program 1 times [2020-12-23 09:18:09,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:09,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055882228] [2020-12-23 09:18:09,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:09,739 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 09:18:09,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055882228] [2020-12-23 09:18:09,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:09,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 09:18:09,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530692174] [2020-12-23 09:18:09,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 09:18:09,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:09,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 09:18:09,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:18:09,742 INFO L87 Difference]: Start difference. First operand 174 states and 239 transitions. Second operand 6 states. [2020-12-23 09:18:09,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:09,898 INFO L93 Difference]: Finished difference Result 513 states and 699 transitions. [2020-12-23 09:18:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:18:09,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-12-23 09:18:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:09,901 INFO L225 Difference]: With dead ends: 513 [2020-12-23 09:18:09,901 INFO L226 Difference]: Without dead ends: 346 [2020-12-23 09:18:09,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-23 09:18:09,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-12-23 09:18:09,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 182. [2020-12-23 09:18:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-12-23 09:18:09,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2020-12-23 09:18:09,925 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 33 [2020-12-23 09:18:09,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:09,926 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2020-12-23 09:18:09,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 09:18:09,926 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2020-12-23 09:18:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 09:18:09,927 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:09,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:09,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:18:09,928 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:09,928 INFO L82 PathProgramCache]: Analyzing trace with hash 608807225, now seen corresponding path program 1 times [2020-12-23 09:18:09,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:09,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912792546] [2020-12-23 09:18:09,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:09,977 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 09:18:09,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912792546] [2020-12-23 09:18:09,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:09,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:18:09,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730158270] [2020-12-23 09:18:09,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:18:09,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:09,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:18:09,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:18:09,980 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand 3 states. [2020-12-23 09:18:10,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:10,038 INFO L93 Difference]: Finished difference Result 445 states and 603 transitions. [2020-12-23 09:18:10,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:18:10,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-23 09:18:10,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:10,041 INFO L225 Difference]: With dead ends: 445 [2020-12-23 09:18:10,042 INFO L226 Difference]: Without dead ends: 270 [2020-12-23 09:18:10,042 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 09:18:10,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-12-23 09:18:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-12-23 09:18:10,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-12-23 09:18:10,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 357 transitions. [2020-12-23 09:18:10,075 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 357 transitions. Word has length 33 [2020-12-23 09:18:10,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:10,075 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 357 transitions. [2020-12-23 09:18:10,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:18:10,076 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 357 transitions. [2020-12-23 09:18:10,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 09:18:10,077 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:10,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:10,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:18:10,077 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:10,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:10,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1791527943, now seen corresponding path program 1 times [2020-12-23 09:18:10,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:10,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16888729] [2020-12-23 09:18:10,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:10,132 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 09:18:10,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16888729] [2020-12-23 09:18:10,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:10,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:18:10,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982971489] [2020-12-23 09:18:10,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:18:10,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:10,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:18:10,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:18:10,135 INFO L87 Difference]: Start difference. First operand 270 states and 357 transitions. Second operand 3 states. [2020-12-23 09:18:10,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:10,207 INFO L93 Difference]: Finished difference Result 389 states and 516 transitions. [2020-12-23 09:18:10,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:18:10,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-23 09:18:10,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:10,211 INFO L225 Difference]: With dead ends: 389 [2020-12-23 09:18:10,211 INFO L226 Difference]: Without dead ends: 387 [2020-12-23 09:18:10,212 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 09:18:10,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-12-23 09:18:10,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 316. [2020-12-23 09:18:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-12-23 09:18:10,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 425 transitions. [2020-12-23 09:18:10,253 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 425 transitions. Word has length 34 [2020-12-23 09:18:10,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:10,253 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 425 transitions. [2020-12-23 09:18:10,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:18:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 425 transitions. [2020-12-23 09:18:10,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-23 09:18:10,255 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:10,255 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:10,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:18:10,256 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:10,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:10,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1315379813, now seen corresponding path program 1 times [2020-12-23 09:18:10,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:10,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418749573] [2020-12-23 09:18:10,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:10,422 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:18:10,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418749573] [2020-12-23 09:18:10,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:10,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 09:18:10,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806804020] [2020-12-23 09:18:10,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 09:18:10,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:10,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 09:18:10,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:18:10,425 INFO L87 Difference]: Start difference. First operand 316 states and 425 transitions. Second operand 6 states. [2020-12-23 09:18:10,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:10,945 INFO L93 Difference]: Finished difference Result 1729 states and 2372 transitions. [2020-12-23 09:18:10,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 09:18:10,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-12-23 09:18:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:10,955 INFO L225 Difference]: With dead ends: 1729 [2020-12-23 09:18:10,956 INFO L226 Difference]: Without dead ends: 1508 [2020-12-23 09:18:10,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-12-23 09:18:10,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-12-23 09:18:11,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 659. [2020-12-23 09:18:11,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-12-23 09:18:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 886 transitions. [2020-12-23 09:18:11,078 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 886 transitions. Word has length 58 [2020-12-23 09:18:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:11,081 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 886 transitions. [2020-12-23 09:18:11,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 09:18:11,081 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 886 transitions. [2020-12-23 09:18:11,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-23 09:18:11,083 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:11,083 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:11,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 09:18:11,083 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:11,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:11,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1573545251, now seen corresponding path program 1 times [2020-12-23 09:18:11,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:11,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893346827] [2020-12-23 09:18:11,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-23 09:18:11,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893346827] [2020-12-23 09:18:11,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:11,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 09:18:11,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278654917] [2020-12-23 09:18:11,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 09:18:11,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:11,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 09:18:11,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:18:11,184 INFO L87 Difference]: Start difference. First operand 659 states and 886 transitions. Second operand 7 states. [2020-12-23 09:18:11,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:11,390 INFO L93 Difference]: Finished difference Result 1322 states and 1767 transitions. [2020-12-23 09:18:11,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:18:11,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-12-23 09:18:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:11,395 INFO L225 Difference]: With dead ends: 1322 [2020-12-23 09:18:11,396 INFO L226 Difference]: Without dead ends: 758 [2020-12-23 09:18:11,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-23 09:18:11,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-12-23 09:18:11,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 366. [2020-12-23 09:18:11,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-12-23 09:18:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 473 transitions. [2020-12-23 09:18:11,453 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 473 transitions. Word has length 58 [2020-12-23 09:18:11,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:11,453 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 473 transitions. [2020-12-23 09:18:11,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 09:18:11,453 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 473 transitions. [2020-12-23 09:18:11,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-23 09:18:11,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:11,455 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:11,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 09:18:11,456 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:11,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:11,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1084126975, now seen corresponding path program 1 times [2020-12-23 09:18:11,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:11,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817677180] [2020-12-23 09:18:11,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:11,546 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:18:11,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817677180] [2020-12-23 09:18:11,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:11,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:18:11,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759943830] [2020-12-23 09:18:11,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:18:11,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:11,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:18:11,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:18:11,549 INFO L87 Difference]: Start difference. First operand 366 states and 473 transitions. Second operand 5 states. [2020-12-23 09:18:11,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:11,743 INFO L93 Difference]: Finished difference Result 634 states and 825 transitions. [2020-12-23 09:18:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:18:11,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-12-23 09:18:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:11,747 INFO L225 Difference]: With dead ends: 634 [2020-12-23 09:18:11,747 INFO L226 Difference]: Without dead ends: 363 [2020-12-23 09:18:11,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 09:18:11,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-12-23 09:18:11,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 359. [2020-12-23 09:18:11,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-12-23 09:18:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 456 transitions. [2020-12-23 09:18:11,807 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 456 transitions. Word has length 58 [2020-12-23 09:18:11,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:11,808 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 456 transitions. [2020-12-23 09:18:11,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:18:11,808 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 456 transitions. [2020-12-23 09:18:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 09:18:11,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:18:11,810 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:18:11,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 09:18:11,810 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:18:11,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:18:11,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1918630825, now seen corresponding path program 1 times [2020-12-23 09:18:11,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:18:11,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529369351] [2020-12-23 09:18:11,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:18:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:18:11,858 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 09:18:11,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529369351] [2020-12-23 09:18:11,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:18:11,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:18:11,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861757496] [2020-12-23 09:18:11,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:18:11,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:18:11,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:18:11,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:18:11,861 INFO L87 Difference]: Start difference. First operand 359 states and 456 transitions. Second operand 3 states. [2020-12-23 09:18:11,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:18:11,998 INFO L93 Difference]: Finished difference Result 707 states and 897 transitions. [2020-12-23 09:18:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:18:11,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-23 09:18:11,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:18:11,999 INFO L225 Difference]: With dead ends: 707 [2020-12-23 09:18:11,999 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 09:18:12,000 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 09:18:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 09:18:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 09:18:12,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 09:18:12,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 09:18:12,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2020-12-23 09:18:12,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:18:12,002 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 09:18:12,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:18:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 09:18:12,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 09:18:12,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 09:18:12,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 09:18:12,605 WARN L197 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 167 [2020-12-23 09:18:12,882 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 165 [2020-12-23 09:18:13,198 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 160 [2020-12-23 09:18:13,386 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 113 [2020-12-23 09:18:14,003 WARN L197 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 154 [2020-12-23 09:18:14,202 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 151 [2020-12-23 09:18:14,380 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 107 [2020-12-23 09:18:14,742 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 170 [2020-12-23 09:18:14,939 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 160 [2020-12-23 09:18:15,260 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2020-12-23 09:18:16,072 WARN L197 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 32 [2020-12-23 09:18:16,815 WARN L197 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 25 [2020-12-23 09:18:17,360 WARN L197 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 26 [2020-12-23 09:18:17,831 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 29 [2020-12-23 09:18:18,600 WARN L197 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 31 [2020-12-23 09:18:19,247 WARN L197 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 31 [2020-12-23 09:18:19,613 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 27 [2020-12-23 09:18:20,067 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 36 [2020-12-23 09:18:20,878 WARN L197 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 30 [2020-12-23 09:18:21,530 WARN L197 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 25 [2020-12-23 09:18:21,535 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2020-12-23 09:18:21,536 INFO L185 CegarLoopUtils]: At program point L300(lines 285 303) the Hoare annotation is: false [2020-12-23 09:18:21,536 INFO L185 CegarLoopUtils]: At program point L300-1(lines 285 303) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (not (= 0 ~systemActive~0))) (.cse2 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse2 .cse3 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse4 (<= 1 ~waterLevel~0) .cse5))) [2020-12-23 09:18:21,536 INFO L185 CegarLoopUtils]: At program point L300-2(lines 285 303) the Hoare annotation is: false [2020-12-23 09:18:21,536 INFO L185 CegarLoopUtils]: At program point L300-3(lines 285 303) the Hoare annotation is: false [2020-12-23 09:18:21,536 INFO L185 CegarLoopUtils]: At program point L300-4(lines 285 303) the Hoare annotation is: false [2020-12-23 09:18:21,536 INFO L185 CegarLoopUtils]: At program point L300-5(lines 285 303) the Hoare annotation is: false [2020-12-23 09:18:21,537 INFO L189 CegarLoopUtils]: For program point L466(lines 466 483) no Hoare annotation was computed. [2020-12-23 09:18:21,537 INFO L185 CegarLoopUtils]: At program point L466-1(lines 1 1000) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-12-23 09:18:21,537 INFO L189 CegarLoopUtils]: For program point L466-2(lines 466 483) no Hoare annotation was computed. [2020-12-23 09:18:21,537 INFO L185 CegarLoopUtils]: At program point L466-3(lines 1 1000) the Hoare annotation is: false [2020-12-23 09:18:21,537 INFO L189 CegarLoopUtils]: For program point L466-4(lines 466 483) no Hoare annotation was computed. [2020-12-23 09:18:21,537 INFO L185 CegarLoopUtils]: At program point L466-5(lines 1 1000) the Hoare annotation is: false [2020-12-23 09:18:21,537 INFO L189 CegarLoopUtils]: For program point L434(lines 434 441) no Hoare annotation was computed. [2020-12-23 09:18:21,537 INFO L192 CegarLoopUtils]: At program point L434-1(lines 434 441) the Hoare annotation is: true [2020-12-23 09:18:21,538 INFO L189 CegarLoopUtils]: For program point L170(lines 170 178) no Hoare annotation was computed. [2020-12-23 09:18:21,538 INFO L189 CegarLoopUtils]: For program point L170-1(lines 170 178) no Hoare annotation was computed. [2020-12-23 09:18:21,538 INFO L189 CegarLoopUtils]: For program point L170-2(lines 170 178) no Hoare annotation was computed. [2020-12-23 09:18:21,538 INFO L189 CegarLoopUtils]: For program point L170-3(lines 170 178) no Hoare annotation was computed. [2020-12-23 09:18:21,538 INFO L189 CegarLoopUtils]: For program point L170-4(lines 170 178) no Hoare annotation was computed. [2020-12-23 09:18:21,538 INFO L189 CegarLoopUtils]: For program point L170-5(lines 170 178) no Hoare annotation was computed. [2020-12-23 09:18:21,538 INFO L185 CegarLoopUtils]: At program point L567(lines 562 570) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2) (and (= ~methaneLevelCritical~0 0) .cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse0 .cse4 .cse1 .cse2) (and .cse3 .cse4 .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2))) [2020-12-23 09:18:21,539 INFO L185 CegarLoopUtils]: At program point L567-1(lines 562 570) the Hoare annotation is: false [2020-12-23 09:18:21,539 INFO L185 CegarLoopUtils]: At program point L567-2(lines 562 570) the Hoare annotation is: false [2020-12-23 09:18:21,539 INFO L189 CegarLoopUtils]: For program point L997(line 997) no Hoare annotation was computed. [2020-12-23 09:18:21,539 INFO L189 CegarLoopUtils]: For program point L997-1(line 997) no Hoare annotation was computed. [2020-12-23 09:18:21,539 INFO L189 CegarLoopUtils]: For program point L997-2(line 997) no Hoare annotation was computed. [2020-12-23 09:18:21,539 INFO L189 CegarLoopUtils]: For program point L470(lines 470 480) no Hoare annotation was computed. [2020-12-23 09:18:21,539 INFO L189 CegarLoopUtils]: For program point L470-2(lines 470 480) no Hoare annotation was computed. [2020-12-23 09:18:21,539 INFO L189 CegarLoopUtils]: For program point L470-4(lines 470 480) no Hoare annotation was computed. [2020-12-23 09:18:21,539 INFO L189 CegarLoopUtils]: For program point L471(lines 471 477) no Hoare annotation was computed. [2020-12-23 09:18:21,539 INFO L189 CegarLoopUtils]: For program point L471-2(lines 471 477) no Hoare annotation was computed. [2020-12-23 09:18:21,540 INFO L189 CegarLoopUtils]: For program point L471-4(lines 471 477) no Hoare annotation was computed. [2020-12-23 09:18:21,540 INFO L185 CegarLoopUtils]: At program point L141(lines 141 147) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2) (and (= ~methaneLevelCritical~0 0) .cse3 .cse4 .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2))) [2020-12-23 09:18:21,540 INFO L185 CegarLoopUtils]: At program point L108(lines 57 109) the Hoare annotation is: false [2020-12-23 09:18:21,540 INFO L185 CegarLoopUtils]: At program point L141-1(lines 141 147) the Hoare annotation is: false [2020-12-23 09:18:21,540 INFO L185 CegarLoopUtils]: At program point L141-2(lines 141 147) the Hoare annotation is: false [2020-12-23 09:18:21,540 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2020-12-23 09:18:21,541 INFO L185 CegarLoopUtils]: At program point L406(lines 402 408) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-12-23 09:18:21,541 INFO L189 CegarLoopUtils]: For program point L78(lines 78 84) no Hoare annotation was computed. [2020-12-23 09:18:21,541 INFO L185 CegarLoopUtils]: At program point L78-1(lines 78 84) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-12-23 09:18:21,541 INFO L189 CegarLoopUtils]: For program point L607(lines 607 613) no Hoare annotation was computed. [2020-12-23 09:18:21,541 INFO L189 CegarLoopUtils]: For program point L607-1(lines 607 613) no Hoare annotation was computed. [2020-12-23 09:18:21,541 INFO L189 CegarLoopUtils]: For program point L607-2(lines 607 613) no Hoare annotation was computed. [2020-12-23 09:18:21,541 INFO L189 CegarLoopUtils]: For program point L607-3(lines 607 613) no Hoare annotation was computed. [2020-12-23 09:18:21,541 INFO L189 CegarLoopUtils]: For program point L607-4(lines 607 613) no Hoare annotation was computed. [2020-12-23 09:18:21,541 INFO L189 CegarLoopUtils]: For program point L607-5(lines 607 613) no Hoare annotation was computed. [2020-12-23 09:18:21,542 INFO L189 CegarLoopUtils]: For program point L542(lines 542 546) no Hoare annotation was computed. [2020-12-23 09:18:21,542 INFO L192 CegarLoopUtils]: At program point L443(lines 424 446) the Hoare annotation is: true [2020-12-23 09:18:21,542 INFO L185 CegarLoopUtils]: At program point L245(lines 240 248) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~tmp~5 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 (= ~methAndRunningLastTime~0 0) .cse3) (and .cse1 (= |ULTIMATE.start_isPumpRunning_#res| 0) .cse0 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2020-12-23 09:18:21,542 INFO L185 CegarLoopUtils]: At program point L245-1(lines 240 248) the Hoare annotation is: false [2020-12-23 09:18:21,542 INFO L185 CegarLoopUtils]: At program point L245-2(lines 240 248) the Hoare annotation is: false [2020-12-23 09:18:21,542 INFO L185 CegarLoopUtils]: At program point L510(lines 1 1000) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-12-23 09:18:21,542 INFO L189 CegarLoopUtils]: For program point L313(lines 313 317) no Hoare annotation was computed. [2020-12-23 09:18:21,542 INFO L189 CegarLoopUtils]: For program point L313-2(lines 313 317) no Hoare annotation was computed. [2020-12-23 09:18:21,543 INFO L189 CegarLoopUtils]: For program point L313-3(lines 313 317) no Hoare annotation was computed. [2020-12-23 09:18:21,543 INFO L189 CegarLoopUtils]: For program point L313-5(lines 313 317) no Hoare annotation was computed. [2020-12-23 09:18:21,543 INFO L189 CegarLoopUtils]: For program point L313-6(lines 313 317) no Hoare annotation was computed. [2020-12-23 09:18:21,543 INFO L189 CegarLoopUtils]: For program point L313-8(lines 313 317) no Hoare annotation was computed. [2020-12-23 09:18:21,543 INFO L185 CegarLoopUtils]: At program point L612(lines 603 616) the Hoare annotation is: false [2020-12-23 09:18:21,543 INFO L185 CegarLoopUtils]: At program point L612-1(lines 603 616) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse2 .cse3 .cse4 (<= 1 ~waterLevel~0) .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2020-12-23 09:18:21,543 INFO L185 CegarLoopUtils]: At program point L612-2(lines 603 616) the Hoare annotation is: false [2020-12-23 09:18:21,543 INFO L185 CegarLoopUtils]: At program point L612-3(lines 603 616) the Hoare annotation is: false [2020-12-23 09:18:21,544 INFO L185 CegarLoopUtils]: At program point L612-4(lines 603 616) the Hoare annotation is: false [2020-12-23 09:18:21,544 INFO L185 CegarLoopUtils]: At program point L612-5(lines 603 616) the Hoare annotation is: false [2020-12-23 09:18:21,544 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 09:18:21,544 INFO L185 CegarLoopUtils]: At program point L319(lines 304 322) the Hoare annotation is: (and (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 0)) (< 0 (+ ULTIMATE.start_isLowWaterLevel_~tmp~4 1)) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (not (= ~pumpRunning~0 0)) (<= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-12-23 09:18:21,544 INFO L185 CegarLoopUtils]: At program point L319-1(lines 304 322) the Hoare annotation is: false [2020-12-23 09:18:21,544 INFO L185 CegarLoopUtils]: At program point L319-2(lines 304 322) the Hoare annotation is: false [2020-12-23 09:18:21,544 INFO L189 CegarLoopUtils]: For program point L88(lines 88 103) no Hoare annotation was computed. [2020-12-23 09:18:21,544 INFO L185 CegarLoopUtils]: At program point L518(lines 513 521) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-12-23 09:18:21,544 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 09:18:21,545 INFO L189 CegarLoopUtils]: For program point L554(lines 554 558) no Hoare annotation was computed. [2020-12-23 09:18:21,545 INFO L185 CegarLoopUtils]: At program point L455(lines 450 457) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-12-23 09:18:21,545 INFO L189 CegarLoopUtils]: For program point L59(lines 58 107) no Hoare annotation was computed. [2020-12-23 09:18:21,545 INFO L189 CegarLoopUtils]: For program point L192(lines 192 209) no Hoare annotation was computed. [2020-12-23 09:18:21,545 INFO L189 CegarLoopUtils]: For program point L192-1(lines 192 209) no Hoare annotation was computed. [2020-12-23 09:18:21,545 INFO L189 CegarLoopUtils]: For program point L192-2(lines 192 209) no Hoare annotation was computed. [2020-12-23 09:18:21,545 INFO L189 CegarLoopUtils]: For program point L60(lines 60 64) no Hoare annotation was computed. [2020-12-23 09:18:21,545 INFO L185 CegarLoopUtils]: At program point L622(lines 617 625) the Hoare annotation is: (and (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ~pumpRunning~0 0)) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-12-23 09:18:21,546 INFO L185 CegarLoopUtils]: At program point L622-1(lines 617 625) the Hoare annotation is: false [2020-12-23 09:18:21,546 INFO L185 CegarLoopUtils]: At program point L622-2(lines 617 625) the Hoare annotation is: false [2020-12-23 09:18:21,546 INFO L185 CegarLoopUtils]: At program point L358-2(lines 358 372) the Hoare annotation is: false [2020-12-23 09:18:21,546 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 09:18:21,546 INFO L189 CegarLoopUtils]: For program point L359(line 359) no Hoare annotation was computed. [2020-12-23 09:18:21,546 INFO L189 CegarLoopUtils]: For program point L327(lines 327 333) no Hoare annotation was computed. [2020-12-23 09:18:21,546 INFO L185 CegarLoopUtils]: At program point L327-1(lines 327 333) the Hoare annotation is: (let ((.cse2 (<= 1 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse2 (= ~methAndRunningLastTime~0 0) .cse4) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse3 .cse4))) [2020-12-23 09:18:21,546 INFO L189 CegarLoopUtils]: For program point L294(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,547 INFO L189 CegarLoopUtils]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,547 INFO L189 CegarLoopUtils]: For program point L294-3(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,547 INFO L189 CegarLoopUtils]: For program point L294-5(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,547 INFO L189 CegarLoopUtils]: For program point L96(lines 96 102) no Hoare annotation was computed. [2020-12-23 09:18:21,547 INFO L189 CegarLoopUtils]: For program point L294-6(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,547 INFO L185 CegarLoopUtils]: At program point L96-1(lines 134 140) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse3 (= ULTIMATE.start_main_~tmp~5 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not .cse1) .cse2 .cse3 .cse4 .cse5) (and .cse3 .cse0 .cse4 .cse6 .cse5 (= ~methAndRunningLastTime~0 0)) (and .cse1 .cse2 .cse3 .cse0 .cse4 .cse5) (and (= ~methaneLevelCritical~0 0) .cse1 .cse3 .cse0 .cse6 .cse4 .cse5))) [2020-12-23 09:18:21,547 INFO L189 CegarLoopUtils]: For program point L294-8(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,547 INFO L189 CegarLoopUtils]: For program point L294-9(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L294-11(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L294-12(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L294-14(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L294-15(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L294-17(lines 294 298) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L196(lines 196 204) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L196-1(lines 196 204) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L196-2(lines 196 204) no Hoare annotation was computed. [2020-12-23 09:18:21,548 INFO L189 CegarLoopUtils]: For program point L362(lines 362 366) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point L362-1(lines 134 140) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point L166(lines 166 183) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point L166-1(lines 166 183) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point L166-2(lines 166 183) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point L166-3(lines 166 183) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point L166-4(lines 166 183) no Hoare annotation was computed. [2020-12-23 09:18:21,549 INFO L189 CegarLoopUtils]: For program point L166-5(lines 166 183) no Hoare annotation was computed. [2020-12-23 09:18:21,550 INFO L189 CegarLoopUtils]: For program point L530(lines 530 534) no Hoare annotation was computed. [2020-12-23 09:18:21,550 INFO L189 CegarLoopUtils]: For program point L530-3(lines 530 534) no Hoare annotation was computed. [2020-12-23 09:18:21,550 INFO L189 CegarLoopUtils]: For program point L530-6(lines 530 534) no Hoare annotation was computed. [2020-12-23 09:18:21,550 INFO L185 CegarLoopUtils]: At program point L134(lines 133 152) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse2 .cse4 (= ~methAndRunningLastTime~0 0)) (and .cse5 (<= 2 ~waterLevel~0) .cse0 .cse1 .cse3 .cse4) (and (not .cse1) (not .cse5) .cse0 .cse3 .cse2 .cse4))) [2020-12-23 09:18:21,550 INFO L189 CegarLoopUtils]: For program point L134-1(lines 134 140) no Hoare annotation was computed. [2020-12-23 09:18:21,550 INFO L189 CegarLoopUtils]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-12-23 09:18:21,550 INFO L185 CegarLoopUtils]: At program point L134-2(lines 133 152) the Hoare annotation is: false [2020-12-23 09:18:21,550 INFO L185 CegarLoopUtils]: At program point L68-1(lines 68 74) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-12-23 09:18:21,551 INFO L185 CegarLoopUtils]: At program point L134-3(lines 133 152) the Hoare annotation is: false [2020-12-23 09:18:21,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:18:21 BoogieIcfgContainer [2020-12-23 09:18:21,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 09:18:21,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 09:18:21,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 09:18:21,585 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 09:18:21,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:18:07" (3/4) ... [2020-12-23 09:18:21,589 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 09:18:21,610 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-23 09:18:21,612 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-23 09:18:21,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-23 09:18:21,614 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-23 09:18:21,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-23 09:18:21,616 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 09:18:21,617 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 09:18:21,647 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-12-23 09:18:21,647 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-12-23 09:18:21,647 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-12-23 09:18:21,647 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-12-23 09:18:21,648 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-12-23 09:18:21,648 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-12-23 09:18:21,649 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((methaneLevelCritical == 0 && 0 == systemActive) && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-12-23 09:18:21,649 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-12-23 09:18:21,649 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) [2020-12-23 09:18:21,650 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-12-23 09:18:21,651 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) [2020-12-23 09:18:21,652 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result <= 0 && !(pumpRunning == 0)) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-12-23 09:18:21,652 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((!(\result == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-12-23 09:18:21,653 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || (((((tmp == 1 && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-12-23 09:18:21,653 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result <= 0 && !(tmp___0 == 0)) && 0 < tmp + 1) && !(\result == 0)) && !(pumpRunning == 0)) && tmp <= 0) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-12-23 09:18:21,654 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((((tmp___0 == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && pumpRunning == 0) && !(tmp == 0)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-12-23 09:18:21,757 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec2_product52.cil.c-witness.graphml [2020-12-23 09:18:21,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 09:18:21,758 INFO L168 Benchmark]: Toolchain (without parser) took 16894.02 ms. Allocated memory was 151.0 MB in the beginning and 282.1 MB in the end (delta: 131.1 MB). Free memory was 105.8 MB in the beginning and 120.8 MB in the end (delta: -15.0 MB). Peak memory consumption was 116.6 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:21,758 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 09:18:21,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.42 ms. Allocated memory is still 151.0 MB. Free memory was 105.8 MB in the beginning and 83.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:21,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.15 ms. Allocated memory is still 151.0 MB. Free memory was 83.7 MB in the beginning and 130.4 MB in the end (delta: -46.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:21,759 INFO L168 Benchmark]: Boogie Preprocessor took 49.29 ms. Allocated memory is still 151.0 MB. Free memory was 130.4 MB in the beginning and 127.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:21,760 INFO L168 Benchmark]: RCFGBuilder took 1362.55 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 125.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:21,760 INFO L168 Benchmark]: TraceAbstraction took 14321.38 ms. Allocated memory was 151.0 MB in the beginning and 282.1 MB in the end (delta: 131.1 MB). Free memory was 124.7 MB in the beginning and 131.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 164.9 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:21,761 INFO L168 Benchmark]: Witness Printer took 172.07 ms. Allocated memory is still 282.1 MB. Free memory was 131.3 MB in the beginning and 120.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:21,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 823.42 ms. Allocated memory is still 151.0 MB. Free memory was 105.8 MB in the beginning and 83.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 157.15 ms. Allocated memory is still 151.0 MB. Free memory was 83.7 MB in the beginning and 130.4 MB in the end (delta: -46.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.29 ms. Allocated memory is still 151.0 MB. Free memory was 130.4 MB in the beginning and 127.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1362.55 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 125.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14321.38 ms. Allocated memory was 151.0 MB in the beginning and 282.1 MB in the end (delta: 131.1 MB). Free memory was 124.7 MB in the beginning and 131.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 164.9 MB. Max. memory is 8.0 GB. * Witness Printer took 172.07 ms. Allocated memory is still 282.1 MB. Free memory was 131.3 MB in the beginning and 120.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((!(\result == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: ((((((((((\result <= 0 && !(tmp___0 == 0)) && 0 < tmp + 1) && !(\result == 0)) && !(pumpRunning == 0)) && tmp <= 0) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((methaneLevelCritical == 0 && 0 == systemActive) && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 450]: Loop Invariant Derived loop invariant: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: ((((((\result <= 0 && !(pumpRunning == 0)) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: ((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || (((((tmp == 1 && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((((tmp___0 == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && pumpRunning == 0) && !(tmp == 0)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1407 SDtfs, 2175 SDslu, 2127 SDs, 0 SdLazy, 268 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 2126 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 188 NumberOfFragments, 829 HoareAnnotationTreeSize, 45 FomulaSimplifications, 1644276 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 45 FomulaSimplificationsInter, 131331 FormulaSimplificationTreeSizeReductionInter, 6.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 496 ConstructedInterpolants, 0 QuantifiedInterpolants, 35144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 82/82 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 correct! Received shutdown request...