./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_spec3_product63.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 a80dbad4927e9382ff212f6acae971cadaba99bba92d1fbe50466813cfe135a1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:01:13,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:01:13,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:01:13,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:01:13,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:01:13,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:01:13,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:01:13,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:01:13,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:01:13,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:01:13,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:01:13,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:01:13,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:01:13,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:01:13,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:01:13,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:01:13,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:01:13,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:01:13,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:01:13,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:01:13,246 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:01:13,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:01:13,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:01:13,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:01:13,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:01:13,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:01:13,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:01:13,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:01:13,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:01:13,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:01:13,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:01:13,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:01:13,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:01:13,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:01:13,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:01:13,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:01:13,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:01:13,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:01:13,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:01:13,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:01:13,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:01:13,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:01:13,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:01:13,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:01:13,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:01:13,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:01:13,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:01:13,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:01:13,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:01:13,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:01:13,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:01:13,294 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:01:13,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:01:13,294 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:01:13,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:01:13,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:01:13,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:01:13,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:01:13,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:01:13,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:01:13,295 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:01:13,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:01:13,295 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:01:13,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:01:13,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:01:13,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:01:13,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:01:13,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:13,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:01:13,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:01:13,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:01:13,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:01:13,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:01:13,296 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:01:13,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:01:13,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:01:13,296 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a80dbad4927e9382ff212f6acae971cadaba99bba92d1fbe50466813cfe135a1 [2022-07-21 05:01:13,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:01:13,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:01:13,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:01:13,556 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:01:13,563 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:01:13,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2022-07-21 05:01:13,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d4732a9/d1f8c937a78e4d5d96c7d58b026fe1c4/FLAGbb57cee8b [2022-07-21 05:01:14,042 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:01:14,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2022-07-21 05:01:14,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d4732a9/d1f8c937a78e4d5d96c7d58b026fe1c4/FLAGbb57cee8b [2022-07-21 05:01:14,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d4732a9/d1f8c937a78e4d5d96c7d58b026fe1c4 [2022-07-21 05:01:14,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:01:14,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:01:14,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:14,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:01:14,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:01:14,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d896aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14, skipping insertion in model container [2022-07-21 05:01:14,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:01:14,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:01:14,343 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_spec3_product63.cil.c[9205,9218] [2022-07-21 05:01:14,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:14,410 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:01:14,447 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_spec3_product63.cil.c[9205,9218] [2022-07-21 05:01:14,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:14,479 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:01:14,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14 WrapperNode [2022-07-21 05:01:14,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:14,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:14,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:01:14,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:01:14,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,534 INFO L137 Inliner]: procedures = 58, calls = 163, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 285 [2022-07-21 05:01:14,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:14,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:01:14,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:01:14,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:01:14,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:01:14,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:01:14,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:01:14,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:01:14,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (1/1) ... [2022-07-21 05:01:14,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:14,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:01:14,606 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) [2022-07-21 05:01:14,611 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 [2022-07-21 05:01:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:01:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 05:01:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 05:01:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-21 05:01:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-21 05:01:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:01:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:01:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:01:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:01:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-21 05:01:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-21 05:01:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:01:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:01:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-21 05:01:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-21 05:01:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-21 05:01:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-21 05:01:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-21 05:01:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-21 05:01:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:01:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:01:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:01:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:01:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:01:14,750 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:01:14,751 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:01:14,998 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:01:15,004 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:01:15,005 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:01:15,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:15 BoogieIcfgContainer [2022-07-21 05:01:15,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:01:15,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:01:15,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:01:15,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:01:15,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:01:14" (1/3) ... [2022-07-21 05:01:15,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a5f4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:15, skipping insertion in model container [2022-07-21 05:01:15,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:14" (2/3) ... [2022-07-21 05:01:15,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a5f4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:15, skipping insertion in model container [2022-07-21 05:01:15,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:15" (3/3) ... [2022-07-21 05:01:15,013 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2022-07-21 05:01:15,022 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:01:15,022 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:01:15,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:01:15,077 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@3128be21, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@42a49de2 [2022-07-21 05:01:15,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:01:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 94 states have internal predecessors, (114), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-21 05:01:15,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 05:01:15,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:15,099 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] [2022-07-21 05:01:15,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:15,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:15,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1265876681, now seen corresponding path program 1 times [2022-07-21 05:01:15,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:15,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533698512] [2022-07-21 05:01:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:15,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 05:01:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:15,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:15,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:15,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533698512] [2022-07-21 05:01:15,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533698512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:15,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:15,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:01:15,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503958828] [2022-07-21 05:01:15,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:15,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:01:15,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:15,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:01:15,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:01:15,273 INFO L87 Difference]: Start difference. First operand has 114 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 94 states have internal predecessors, (114), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-07-21 05:01:15,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:15,303 INFO L93 Difference]: Finished difference Result 220 states and 299 transitions. [2022-07-21 05:01:15,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:01:15,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2022-07-21 05:01:15,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:15,311 INFO L225 Difference]: With dead ends: 220 [2022-07-21 05:01:15,311 INFO L226 Difference]: Without dead ends: 105 [2022-07-21 05:01:15,314 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 [2022-07-21 05:01:15,316 INFO L413 NwaCegarLoop]: 146 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, 146 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 [2022-07-21 05:01:15,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-21 05:01:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-07-21 05:01:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 86 states have internal predecessors, (100), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-07-21 05:01:15,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 137 transitions. [2022-07-21 05:01:15,362 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 137 transitions. Word has length 25 [2022-07-21 05:01:15,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:15,362 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 137 transitions. [2022-07-21 05:01:15,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-07-21 05:01:15,363 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 137 transitions. [2022-07-21 05:01:15,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-21 05:01:15,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:15,365 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] [2022-07-21 05:01:15,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:01:15,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:15,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:15,366 INFO L85 PathProgramCache]: Analyzing trace with hash -541136910, now seen corresponding path program 1 times [2022-07-21 05:01:15,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:15,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852342363] [2022-07-21 05:01:15,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:15,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:01:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:15,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:15,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852342363] [2022-07-21 05:01:15,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852342363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:15,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:15,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:01:15,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411346407] [2022-07-21 05:01:15,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:15,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:15,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:15,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:15,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:15,420 INFO L87 Difference]: Start difference. First operand 105 states and 137 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-07-21 05:01:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:15,441 INFO L93 Difference]: Finished difference Result 172 states and 224 transitions. [2022-07-21 05:01:15,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:15,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2022-07-21 05:01:15,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:15,443 INFO L225 Difference]: With dead ends: 172 [2022-07-21 05:01:15,443 INFO L226 Difference]: Without dead ends: 96 [2022-07-21 05:01:15,444 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 [2022-07-21 05:01:15,445 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 16 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 227 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 [2022-07-21 05:01:15,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:15,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-21 05:01:15,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-21 05:01:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 80 states have internal predecessors, (93), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-21 05:01:15,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2022-07-21 05:01:15,462 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 26 [2022-07-21 05:01:15,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:15,462 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2022-07-21 05:01:15,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-07-21 05:01:15,463 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2022-07-21 05:01:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-21 05:01:15,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:15,464 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] [2022-07-21 05:01:15,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:01:15,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash 826404174, now seen corresponding path program 1 times [2022-07-21 05:01:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:15,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761105668] [2022-07-21 05:01:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 05:01:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:15,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:15,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:15,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761105668] [2022-07-21 05:01:15,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761105668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:15,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:15,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:01:15,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733754080] [2022-07-21 05:01:15,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:15,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:01:15,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:15,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:01:15,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:01:15,552 INFO L87 Difference]: Start difference. First operand 96 states and 125 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-07-21 05:01:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:15,753 INFO L93 Difference]: Finished difference Result 317 states and 419 transitions. [2022-07-21 05:01:15,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:01:15,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2022-07-21 05:01:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:15,756 INFO L225 Difference]: With dead ends: 317 [2022-07-21 05:01:15,756 INFO L226 Difference]: Without dead ends: 228 [2022-07-21 05:01:15,757 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 [2022-07-21 05:01:15,758 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 257 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:15,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 580 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:01:15,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-07-21 05:01:15,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2022-07-21 05:01:15,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 161 states have (on average 1.3540372670807452) internal successors, (218), 183 states have internal predecessors, (218), 37 states have call successors, (37), 23 states have call predecessors, (37), 23 states have return successors, (38), 25 states have call predecessors, (38), 37 states have call successors, (38) [2022-07-21 05:01:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 293 transitions. [2022-07-21 05:01:15,783 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 293 transitions. Word has length 30 [2022-07-21 05:01:15,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:15,784 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 293 transitions. [2022-07-21 05:01:15,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-07-21 05:01:15,784 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 293 transitions. [2022-07-21 05:01:15,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 05:01:15,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:15,786 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] [2022-07-21 05:01:15,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:01:15,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:15,786 INFO L85 PathProgramCache]: Analyzing trace with hash 856279620, now seen corresponding path program 1 times [2022-07-21 05:01:15,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:15,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541020799] [2022-07-21 05:01:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:15,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 05:01:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:15,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:15,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:15,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541020799] [2022-07-21 05:01:15,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541020799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:15,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:15,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:01:15,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725298605] [2022-07-21 05:01:15,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:15,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:01:15,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:15,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:01:15,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:01:15,868 INFO L87 Difference]: Start difference. First operand 222 states and 293 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2022-07-21 05:01:15,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:15,926 INFO L93 Difference]: Finished difference Result 644 states and 878 transitions. [2022-07-21 05:01:15,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:01:15,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 34 [2022-07-21 05:01:15,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:15,930 INFO L225 Difference]: With dead ends: 644 [2022-07-21 05:01:15,930 INFO L226 Difference]: Without dead ends: 429 [2022-07-21 05:01:15,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:01:15,936 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 94 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:15,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 518 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:15,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-07-21 05:01:15,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 420. [2022-07-21 05:01:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 302 states have (on average 1.3311258278145695) internal successors, (402), 342 states have internal predecessors, (402), 74 states have call successors, (74), 46 states have call predecessors, (74), 43 states have return successors, (80), 47 states have call predecessors, (80), 74 states have call successors, (80) [2022-07-21 05:01:15,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 556 transitions. [2022-07-21 05:01:15,982 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 556 transitions. Word has length 34 [2022-07-21 05:01:15,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:15,982 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 556 transitions. [2022-07-21 05:01:15,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2022-07-21 05:01:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 556 transitions. [2022-07-21 05:01:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 05:01:15,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:15,985 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] [2022-07-21 05:01:15,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:01:15,985 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1555178858, now seen corresponding path program 1 times [2022-07-21 05:01:15,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:15,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068920391] [2022-07-21 05:01:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:15,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 05:01:16,009 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 05:01:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 05:01:16,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 05:01:16,059 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 05:01:16,059 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:01:16,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:01:16,063 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-21 05:01:16,066 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:01:16,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:01:16 BoogieIcfgContainer [2022-07-21 05:01:16,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:01:16,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:01:16,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:01:16,104 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:01:16,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:15" (3/4) ... [2022-07-21 05:01:16,106 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 05:01:16,159 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:01:16,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:01:16,165 INFO L158 Benchmark]: Toolchain (without parser) took 2095.47ms. Allocated memory was 52.4MB in the beginning and 79.7MB in the end (delta: 27.3MB). Free memory was 28.8MB in the beginning and 28.4MB in the end (delta: 419.4kB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-07-21 05:01:16,165 INFO L158 Benchmark]: CDTParser took 2.54ms. Allocated memory is still 52.4MB. Free memory was 34.2MB in the beginning and 34.2MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:01:16,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.98ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 28.7MB in the beginning and 39.9MB in the end (delta: -11.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-07-21 05:01:16,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.58ms. Allocated memory is still 65.0MB. Free memory was 39.7MB in the beginning and 37.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:16,166 INFO L158 Benchmark]: Boogie Preprocessor took 24.60ms. Allocated memory is still 65.0MB. Free memory was 37.1MB in the beginning and 35.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:16,166 INFO L158 Benchmark]: RCFGBuilder took 447.20ms. Allocated memory is still 65.0MB. Free memory was 35.6MB in the beginning and 34.4MB in the end (delta: 1.1MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-07-21 05:01:16,166 INFO L158 Benchmark]: TraceAbstraction took 1094.85ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 33.9MB in the beginning and 32.6MB in the end (delta: 1.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:16,166 INFO L158 Benchmark]: Witness Printer took 60.22ms. Allocated memory is still 79.7MB. Free memory was 32.6MB in the beginning and 28.4MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:16,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.54ms. Allocated memory is still 52.4MB. Free memory was 34.2MB in the beginning and 34.2MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.98ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 28.7MB in the beginning and 39.9MB in the end (delta: -11.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.58ms. Allocated memory is still 65.0MB. Free memory was 39.7MB in the beginning and 37.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.60ms. Allocated memory is still 65.0MB. Free memory was 37.1MB in the beginning and 35.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.20ms. Allocated memory is still 65.0MB. Free memory was 35.6MB in the beginning and 34.4MB in the end (delta: 1.1MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1094.85ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 33.9MB in the beginning and 32.6MB in the end (delta: 1.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Witness Printer took 60.22ms. Allocated memory is still 79.7MB. Free memory was 32.6MB in the beginning and 28.4MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. 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: 629]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L198] int pumpRunning = 0; [L199] int systemActive = 1; [L522] int waterLevel = 1; [L523] int methaneLevelCritical = 0; [L837] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L455] int splverifierCounter ; [L456] int tmp ; [L457] int tmp___0 ; [L458] int tmp___1 ; [L459] int tmp___2 ; [L462] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L464] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L466] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L472] tmp = __VERIFIER_nondet_int() [L474] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L476] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE waterLevel < 2 [L541] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L476] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L482] tmp___0 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L492] tmp___2 = __VERIFIER_nondet_int() [L494] COND FALSE !(\read(tmp___2)) [L498] tmp___1 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___1) [L502] CALL stopSystem() [L442] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L502] RET stopSystem() [L509] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L206] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L213] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] CALL __utac_acc__Specification3_spec__1() [L635] int tmp ; [L636] int tmp___0 ; [L637] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L641] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L561] int retValue_acc ; [L564] retValue_acc = methaneLevelCritical [L565] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L641] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L641] tmp = isMethaneLevelCritical() [L643] COND FALSE !(\read(tmp)) [L647] CALL, EXPR getWaterLevel() [L593] int retValue_acc ; [L596] retValue_acc = waterLevel [L597] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L647] RET, EXPR getWaterLevel() [L647] tmp___0 = getWaterLevel() [L649] COND TRUE tmp___0 == 2 [L651] CALL, EXPR isPumpRunning() [L356] int retValue_acc ; [L359] retValue_acc = pumpRunning [L360] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L651] RET, EXPR isPumpRunning() [L651] tmp___1 = isPumpRunning() [L653] COND FALSE !(\read(tmp___1)) [L657] CALL __automaton_fail() [L629] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 367 mSDsluCounter, 1471 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 910 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 561 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=420occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-07-21 05:01:16,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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