./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:17:30,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:17:30,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:17:30,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:17:30,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:17:30,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:17:30,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:17:30,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:17:30,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:17:30,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:17:30,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:17:30,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:17:30,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:17:30,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:17:30,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:17:30,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:17:30,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:17:30,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:17:30,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:17:30,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:17:30,483 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:17:30,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:17:30,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:17:30,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:17:30,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:17:30,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:17:30,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:17:30,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:17:30,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:17:30,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:17:30,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:17:30,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:17:30,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:17:30,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:17:30,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:17:30,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:17:30,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:17:30,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:17:30,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:17:30,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:17:30,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:17:30,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:17:30,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:17:30,530 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:17:30,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:17:30,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:17:30,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:17:30,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:17:30,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:17:30,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:17:30,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:17:30,533 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:17:30,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:17:30,534 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:17:30,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:17:30,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:17:30,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:17:30,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:17:30,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:17:30,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:17:30,535 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:17:30,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:17:30,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:17:30,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:17:30,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:17:30,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:17:30,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:17:30,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:17:30,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:17:30,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:17:30,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:17:30,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:17:30,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:17:30,538 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:17:30,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:17:30,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:17:30,539 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c [2022-07-12 06:17:30,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:17:30,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:17:30,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:17:30,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:17:30,762 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:17:30,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2022-07-12 06:17:30,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61593f98/5c3eb56bc83b49ab96a555287e191a9c/FLAGea4028b0a [2022-07-12 06:17:31,242 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:17:31,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2022-07-12 06:17:31,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61593f98/5c3eb56bc83b49ab96a555287e191a9c/FLAGea4028b0a [2022-07-12 06:17:31,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61593f98/5c3eb56bc83b49ab96a555287e191a9c [2022-07-12 06:17:31,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:17:31,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:17:31,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:17:31,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:17:31,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:17:31,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:17:31" (1/1) ... [2022-07-12 06:17:31,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511c631d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:31, skipping insertion in model container [2022-07-12 06:17:31,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:17:31" (1/1) ... [2022-07-12 06:17:31,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:17:31,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:17:31,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11731,11744] [2022-07-12 06:17:31,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:17:31,985 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:17:32,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11731,11744] [2022-07-12 06:17:32,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:17:32,069 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:17:32,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32 WrapperNode [2022-07-12 06:17:32,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:17:32,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:17:32,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:17:32,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:17:32,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,119 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 242 [2022-07-12 06:17:32,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:17:32,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:17:32,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:17:32,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:17:32,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:17:32,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:17:32,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:17:32,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:17:32,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (1/1) ... [2022-07-12 06:17:32,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:17:32,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:17:32,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 06:17:32,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 06:17:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:17:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-12 06:17:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-12 06:17:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:17:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:17:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:17:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:17:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-12 06:17:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-12 06:17:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-12 06:17:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-12 06:17:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:17:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:17:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-12 06:17:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-12 06:17:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:17:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:17:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:17:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:17:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:17:32,356 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:17:32,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:17:32,639 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:17:32,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:17:32,645 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:17:32,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:17:32 BoogieIcfgContainer [2022-07-12 06:17:32,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:17:32,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:17:32,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:17:32,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:17:32,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:17:31" (1/3) ... [2022-07-12 06:17:32,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524e5848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:17:32, skipping insertion in model container [2022-07-12 06:17:32,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:32" (2/3) ... [2022-07-12 06:17:32,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524e5848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:17:32, skipping insertion in model container [2022-07-12 06:17:32,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:17:32" (3/3) ... [2022-07-12 06:17:32,657 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2022-07-12 06:17:32,667 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:17:32,667 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:17:32,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:17:32,741 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@679514c0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67793df6 [2022-07-12 06:17:32,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:17:32,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 77 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-12 06:17:32,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-12 06:17:32,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:32,754 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:17:32,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:32,759 INFO L85 PathProgramCache]: Analyzing trace with hash -929620248, now seen corresponding path program 1 times [2022-07-12 06:17:32,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:32,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430738842] [2022-07-12 06:17:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:32,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 06:17:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:32,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:32,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430738842] [2022-07-12 06:17:32,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430738842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:32,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:32,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:17:32,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736637197] [2022-07-12 06:17:32,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:32,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:17:32,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:32,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:17:33,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:17:33,002 INFO L87 Difference]: Start difference. First operand has 92 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 77 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:17:33,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:33,039 INFO L93 Difference]: Finished difference Result 176 states and 239 transitions. [2022-07-12 06:17:33,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:17:33,041 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-07-12 06:17:33,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:33,053 INFO L225 Difference]: With dead ends: 176 [2022-07-12 06:17:33,053 INFO L226 Difference]: Without dead ends: 83 [2022-07-12 06:17:33,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:17:33,058 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:33,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:17:33,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-07-12 06:17:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-07-12 06:17:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 69 states have internal predecessors, (80), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-12 06:17:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-07-12 06:17:33,099 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 23 [2022-07-12 06:17:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:33,099 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-07-12 06:17:33,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:17:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-07-12 06:17:33,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 06:17:33,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:33,103 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:17:33,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:17:33,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:33,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:33,105 INFO L85 PathProgramCache]: Analyzing trace with hash 267832740, now seen corresponding path program 1 times [2022-07-12 06:17:33,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:33,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260439441] [2022-07-12 06:17:33,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:33,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:17:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:33,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:33,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260439441] [2022-07-12 06:17:33,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260439441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:33,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:33,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:17:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018718902] [2022-07-12 06:17:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:33,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:17:33,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:33,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:17:33,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:17:33,189 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:17:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:33,215 INFO L93 Difference]: Finished difference Result 128 states and 164 transitions. [2022-07-12 06:17:33,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:17:33,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-07-12 06:17:33,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:33,219 INFO L225 Difference]: With dead ends: 128 [2022-07-12 06:17:33,219 INFO L226 Difference]: Without dead ends: 74 [2022-07-12 06:17:33,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:17:33,224 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 16 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:33,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:17:33,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-12 06:17:33,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-07-12 06:17:33,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 63 states have internal predecessors, (73), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-12 06:17:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2022-07-12 06:17:33,235 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 24 [2022-07-12 06:17:33,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:33,236 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2022-07-12 06:17:33,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:17:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2022-07-12 06:17:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-12 06:17:33,241 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:33,242 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:17:33,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:17:33,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:33,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:33,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1921198566, now seen corresponding path program 1 times [2022-07-12 06:17:33,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:33,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989097601] [2022-07-12 06:17:33,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:33,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:17:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:33,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:33,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989097601] [2022-07-12 06:17:33,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989097601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:33,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:33,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:17:33,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155368744] [2022-07-12 06:17:33,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:33,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:17:33,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:17:33,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:17:33,334 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:17:33,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:33,485 INFO L93 Difference]: Finished difference Result 249 states and 326 transitions. [2022-07-12 06:17:33,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:17:33,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-07-12 06:17:33,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:33,487 INFO L225 Difference]: With dead ends: 249 [2022-07-12 06:17:33,487 INFO L226 Difference]: Without dead ends: 182 [2022-07-12 06:17:33,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:17:33,488 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 197 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:33,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 468 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:17:33,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-07-12 06:17:33,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 176. [2022-07-12 06:17:33,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 129 states have (on average 1.3565891472868217) internal successors, (175), 147 states have internal predecessors, (175), 27 states have call successors, (27), 19 states have call predecessors, (27), 19 states have return successors, (28), 19 states have call predecessors, (28), 27 states have call successors, (28) [2022-07-12 06:17:33,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 230 transitions. [2022-07-12 06:17:33,507 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 230 transitions. Word has length 28 [2022-07-12 06:17:33,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:33,507 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 230 transitions. [2022-07-12 06:17:33,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:17:33,507 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 230 transitions. [2022-07-12 06:17:33,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 06:17:33,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:33,508 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:17:33,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:17:33,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:33,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:33,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2070226864, now seen corresponding path program 1 times [2022-07-12 06:17:33,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:33,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784383422] [2022-07-12 06:17:33,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:33,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:17:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:33,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:33,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784383422] [2022-07-12 06:17:33,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784383422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:33,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:33,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:17:33,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986887332] [2022-07-12 06:17:33,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:33,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:17:33,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:33,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:17:33,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:17:33,568 INFO L87 Difference]: Start difference. First operand 176 states and 230 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:17:33,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:33,653 INFO L93 Difference]: Finished difference Result 515 states and 686 transitions. [2022-07-12 06:17:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 06:17:33,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-12 06:17:33,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:33,661 INFO L225 Difference]: With dead ends: 515 [2022-07-12 06:17:33,662 INFO L226 Difference]: Without dead ends: 346 [2022-07-12 06:17:33,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:17:33,666 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 66 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:33,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 464 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:17:33,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-07-12 06:17:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 337. [2022-07-12 06:17:33,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 244 states have (on average 1.3401639344262295) internal successors, (327), 279 states have internal predecessors, (327), 54 states have call successors, (54), 38 states have call predecessors, (54), 38 states have return successors, (59), 38 states have call predecessors, (59), 54 states have call successors, (59) [2022-07-12 06:17:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 440 transitions. [2022-07-12 06:17:33,691 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 440 transitions. Word has length 32 [2022-07-12 06:17:33,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:33,691 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 440 transitions. [2022-07-12 06:17:33,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:17:33,692 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 440 transitions. [2022-07-12 06:17:33,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-12 06:17:33,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:33,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:17:33,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:17:33,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:33,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:33,694 INFO L85 PathProgramCache]: Analyzing trace with hash 680626324, now seen corresponding path program 1 times [2022-07-12 06:17:33,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:33,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637301594] [2022-07-12 06:17:33,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:33,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 06:17:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 06:17:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:33,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:33,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637301594] [2022-07-12 06:17:33,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637301594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:33,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:33,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:17:33,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282362574] [2022-07-12 06:17:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:33,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:17:33,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:33,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:17:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:17:33,741 INFO L87 Difference]: Start difference. First operand 337 states and 440 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:17:33,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:33,937 INFO L93 Difference]: Finished difference Result 830 states and 1110 transitions. [2022-07-12 06:17:33,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 06:17:33,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-07-12 06:17:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:33,940 INFO L225 Difference]: With dead ends: 830 [2022-07-12 06:17:33,940 INFO L226 Difference]: Without dead ends: 500 [2022-07-12 06:17:33,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:17:33,942 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 108 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:33,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 193 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:17:33,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-07-12 06:17:33,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 481. [2022-07-12 06:17:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 352 states have (on average 1.2840909090909092) internal successors, (452), 385 states have internal predecessors, (452), 68 states have call successors, (68), 60 states have call predecessors, (68), 60 states have return successors, (93), 62 states have call predecessors, (93), 68 states have call successors, (93) [2022-07-12 06:17:33,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 613 transitions. [2022-07-12 06:17:33,969 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 613 transitions. Word has length 36 [2022-07-12 06:17:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:33,969 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 613 transitions. [2022-07-12 06:17:33,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:17:33,970 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 613 transitions. [2022-07-12 06:17:33,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 06:17:33,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:33,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:17:33,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:17:33,971 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:33,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:33,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1280424257, now seen corresponding path program 1 times [2022-07-12 06:17:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:33,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941681569] [2022-07-12 06:17:33,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:33,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 06:17:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:17:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 06:17:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:34,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:34,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941681569] [2022-07-12 06:17:34,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941681569] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:34,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:34,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:17:34,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678264135] [2022-07-12 06:17:34,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:34,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:17:34,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:34,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:17:34,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:17:34,025 INFO L87 Difference]: Start difference. First operand 481 states and 613 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:17:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:34,279 INFO L93 Difference]: Finished difference Result 1061 states and 1368 transitions. [2022-07-12 06:17:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:17:34,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-07-12 06:17:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:34,285 INFO L225 Difference]: With dead ends: 1061 [2022-07-12 06:17:34,285 INFO L226 Difference]: Without dead ends: 587 [2022-07-12 06:17:34,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-12 06:17:34,292 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 113 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:34,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 208 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 06:17:34,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-07-12 06:17:34,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 573. [2022-07-12 06:17:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 424 states have (on average 1.25) internal successors, (530), 457 states have internal predecessors, (530), 76 states have call successors, (76), 60 states have call predecessors, (76), 72 states have return successors, (113), 78 states have call predecessors, (113), 76 states have call successors, (113) [2022-07-12 06:17:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 719 transitions. [2022-07-12 06:17:34,345 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 719 transitions. Word has length 46 [2022-07-12 06:17:34,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:34,345 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 719 transitions. [2022-07-12 06:17:34,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:17:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 719 transitions. [2022-07-12 06:17:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 06:17:34,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:34,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:17:34,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 06:17:34,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:34,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:34,351 INFO L85 PathProgramCache]: Analyzing trace with hash -713720449, now seen corresponding path program 1 times [2022-07-12 06:17:34,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:34,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884241834] [2022-07-12 06:17:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:34,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 06:17:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:17:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 06:17:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:34,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:34,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884241834] [2022-07-12 06:17:34,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884241834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:34,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:34,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:17:34,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909261749] [2022-07-12 06:17:34,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:34,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:17:34,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:34,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:17:34,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:17:34,429 INFO L87 Difference]: Start difference. First operand 573 states and 719 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:17:34,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:34,599 INFO L93 Difference]: Finished difference Result 1173 states and 1512 transitions. [2022-07-12 06:17:34,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:17:34,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-07-12 06:17:34,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:34,603 INFO L225 Difference]: With dead ends: 1173 [2022-07-12 06:17:34,603 INFO L226 Difference]: Without dead ends: 607 [2022-07-12 06:17:34,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:17:34,605 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 118 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:34,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 181 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:17:34,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-12 06:17:34,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 581. [2022-07-12 06:17:34,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 432 states have (on average 1.2453703703703705) internal successors, (538), 465 states have internal predecessors, (538), 76 states have call successors, (76), 60 states have call predecessors, (76), 72 states have return successors, (113), 78 states have call predecessors, (113), 76 states have call successors, (113) [2022-07-12 06:17:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 727 transitions. [2022-07-12 06:17:34,633 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 727 transitions. Word has length 46 [2022-07-12 06:17:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:34,633 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 727 transitions. [2022-07-12 06:17:34,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:17:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 727 transitions. [2022-07-12 06:17:34,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 06:17:34,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:34,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:17:34,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 06:17:34,635 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:34,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1531368899, now seen corresponding path program 1 times [2022-07-12 06:17:34,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:34,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124849494] [2022-07-12 06:17:34,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:34,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 06:17:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:17:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 06:17:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:34,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:34,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124849494] [2022-07-12 06:17:34,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124849494] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:34,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:34,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:17:34,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846813343] [2022-07-12 06:17:34,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:34,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:17:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:34,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:17:34,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:17:34,685 INFO L87 Difference]: Start difference. First operand 581 states and 727 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:17:34,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:34,942 INFO L93 Difference]: Finished difference Result 1761 states and 2304 transitions. [2022-07-12 06:17:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 06:17:34,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-07-12 06:17:34,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:34,947 INFO L225 Difference]: With dead ends: 1761 [2022-07-12 06:17:34,947 INFO L226 Difference]: Without dead ends: 1187 [2022-07-12 06:17:34,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-12 06:17:34,950 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 299 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:34,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 244 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 06:17:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2022-07-12 06:17:35,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1175. [2022-07-12 06:17:35,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 876 states have (on average 1.221461187214612) internal successors, (1070), 933 states have internal predecessors, (1070), 154 states have call successors, (154), 142 states have call predecessors, (154), 144 states have return successors, (257), 150 states have call predecessors, (257), 154 states have call successors, (257) [2022-07-12 06:17:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1481 transitions. [2022-07-12 06:17:35,008 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1481 transitions. Word has length 46 [2022-07-12 06:17:35,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:35,008 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1481 transitions. [2022-07-12 06:17:35,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:17:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1481 transitions. [2022-07-12 06:17:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-12 06:17:35,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:35,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:17:35,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 06:17:35,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:35,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:35,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2099326365, now seen corresponding path program 1 times [2022-07-12 06:17:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:35,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162454909] [2022-07-12 06:17:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:35,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 06:17:35,024 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 06:17:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 06:17:35,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 06:17:35,053 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 06:17:35,054 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:17:35,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 06:17:35,057 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:17:35,060 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:17:35,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:17:35 BoogieIcfgContainer [2022-07-12 06:17:35,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:17:35,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:17:35,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:17:35,110 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:17:35,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:17:32" (3/4) ... [2022-07-12 06:17:35,111 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 06:17:35,164 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:17:35,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:17:35,165 INFO L158 Benchmark]: Toolchain (without parser) took 3532.57ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 63.1MB in the beginning and 97.8MB in the end (delta: -34.7MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-07-12 06:17:35,165 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 50.7MB in the beginning and 50.7MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:17:35,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.49ms. Allocated memory was 94.4MB in the beginning and 132.1MB in the end (delta: 37.7MB). Free memory was 62.9MB in the beginning and 100.0MB in the end (delta: -37.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 06:17:35,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.42ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:17:35,166 INFO L158 Benchmark]: Boogie Preprocessor took 26.52ms. Allocated memory is still 132.1MB. Free memory was 97.9MB in the beginning and 96.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:17:35,166 INFO L158 Benchmark]: RCFGBuilder took 498.11ms. Allocated memory is still 132.1MB. Free memory was 96.2MB in the beginning and 80.2MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 06:17:35,166 INFO L158 Benchmark]: TraceAbstraction took 2461.55ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 79.4MB in the beginning and 102.0MB in the end (delta: -22.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-07-12 06:17:35,167 INFO L158 Benchmark]: Witness Printer took 54.97ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 97.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:17:35,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 50.7MB in the beginning and 50.7MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.49ms. Allocated memory was 94.4MB in the beginning and 132.1MB in the end (delta: 37.7MB). Free memory was 62.9MB in the beginning and 100.0MB in the end (delta: -37.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.42ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.52ms. Allocated memory is still 132.1MB. Free memory was 97.9MB in the beginning and 96.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.11ms. Allocated memory is still 132.1MB. Free memory was 96.2MB in the beginning and 80.2MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2461.55ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 79.4MB in the beginning and 102.0MB in the end (delta: -22.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Witness Printer took 54.97ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 97.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 449]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] int retValue_acc ; [L932] int tmp ; [L936] FCALL select_helpers() [L937] FCALL select_features() [L938] CALL, EXPR valid_product() [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L938] RET, EXPR valid_product() [L938] tmp = valid_product() [L940] COND TRUE \read(tmp) [L942] FCALL setup() [L943] CALL runTest() [L925] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L567] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L569] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L579] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] COND TRUE waterLevel < 2 [L479] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L579] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L589] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L490] COND FALSE !(\read(methaneLevelCritical)) [L493] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L589] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L612] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L689] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L663] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE ! pumpRunning [L668] CALL, EXPR isHighWaterLevel() [L786] int retValue_acc ; [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L543] COND FALSE !(waterLevel < 2) [L547] retValue_acc = 0 [L548] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L792] RET, EXPR isHighWaterSensorDry() [L792] tmp = isHighWaterSensorDry() [L794] COND FALSE !(\read(tmp)) [L797] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L799] retValue_acc = tmp___0 [L800] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L668] RET, EXPR isHighWaterLevel() [L668] tmp = isHighWaterLevel() [L670] COND TRUE \read(tmp) [L672] CALL activatePump() [L717] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] RET activatePump() [L707] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification1_spec__1() [L420] int tmp ; [L421] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L425] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L425] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L425] tmp = isMethaneLevelCritical() [L427] COND TRUE \read(tmp) [L429] CALL, EXPR isPumpRunning() [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L429] RET, EXPR isPumpRunning() [L429] tmp___0 = isPumpRunning() [L431] COND TRUE \read(tmp___0) [L433] CALL __automaton_fail() [L449] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 935 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 917 mSDsluCounter, 2041 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1234 mSDsCounter, 271 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1147 IncrementalHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 271 mSolverCounterUnsat, 807 mSDtfsCounter, 1147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1175occurred in iteration=8, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 86 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 331 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-12 06:17:35,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE