./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa --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 3ff5e3440a113d04736761f02383989df8ff41baa6c3f7c82a502839a05f4fda --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:42:24,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:42:24,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:42:24,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:42:24,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:42:24,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:42:24,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:42:24,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:42:24,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:42:24,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:42:24,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:42:24,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:42:24,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:42:24,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:42:24,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:42:24,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:42:24,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:42:24,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:42:24,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:42:24,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:42:24,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:42:24,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:42:24,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:42:24,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:42:24,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:42:24,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:42:24,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:42:24,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:42:24,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:42:24,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:42:24,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:42:24,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:42:24,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:42:24,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:42:24,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:42:24,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:42:24,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:42:24,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:42:24,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:42:24,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:42:24,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:42:24,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:42:24,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:42:24,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:42:24,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:42:24,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:42:24,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:42:24,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:42:24,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:42:24,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:42:24,366 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:42:24,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:42:24,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:42:24,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:42:24,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:42:24,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:42:24,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:42:24,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:42:24,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:42:24,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:42:24,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:42:24,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:42:24,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:42:24,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:42:24,369 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:42:24,369 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:42:24,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:42:24,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:42:24,369 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ff5e3440a113d04736761f02383989df8ff41baa6c3f7c82a502839a05f4fda [2021-12-06 17:42:24,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:42:24,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:42:24,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:42:24,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:42:24,597 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:42:24,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2021-12-06 17:42:24,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/data/f90f91168/298617693e6344618be18bc620df2e00/FLAG758f879f9 [2021-12-06 17:42:25,039 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:42:25,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2021-12-06 17:42:25,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/data/f90f91168/298617693e6344618be18bc620df2e00/FLAG758f879f9 [2021-12-06 17:42:25,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/data/f90f91168/298617693e6344618be18bc620df2e00 [2021-12-06 17:42:25,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:42:25,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:42:25,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:42:25,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:42:25,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:42:25,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415a3802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25, skipping insertion in model container [2021-12-06 17:42:25,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:42:25,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:42:25,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c[2141,2154] [2021-12-06 17:42:25,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:42:25,294 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:42:25,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c[2141,2154] [2021-12-06 17:42:25,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:42:25,353 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:42:25,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25 WrapperNode [2021-12-06 17:42:25,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:42:25,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:42:25,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:42:25,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:42:25,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,389 INFO L137 Inliner]: procedures = 52, calls = 152, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 216 [2021-12-06 17:42:25,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:42:25,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:42:25,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:42:25,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:42:25,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:42:25,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:42:25,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:42:25,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:42:25,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (1/1) ... [2021-12-06 17:42:25,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:42:25,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:25,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:42:25,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:42:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:42:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 17:42:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 17:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 17:42:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 17:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 17:42:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 17:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-06 17:42:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-06 17:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-06 17:42:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-06 17:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-06 17:42:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-06 17:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 17:42:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 17:42:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:42:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:42:25,518 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:42:25,519 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:42:25,739 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:42:25,745 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:42:25,745 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 17:42:25,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:25 BoogieIcfgContainer [2021-12-06 17:42:25,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:42:25,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:42:25,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:42:25,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:42:25,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:42:25" (1/3) ... [2021-12-06 17:42:25,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13861869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:25, skipping insertion in model container [2021-12-06 17:42:25,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:25" (2/3) ... [2021-12-06 17:42:25,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13861869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:25, skipping insertion in model container [2021-12-06 17:42:25,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:25" (3/3) ... [2021-12-06 17:42:25,752 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product15.cil.c [2021-12-06 17:42:25,756 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:42:25,756 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:42:25,791 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:42:25,796 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:42:25,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:42:25,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 65 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-06 17:42:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 17:42:25,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:25,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:25,816 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2002568319, now seen corresponding path program 1 times [2021-12-06 17:42:25,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:25,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884416612] [2021-12-06 17:42:25,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:25,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:25,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:25,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884416612] [2021-12-06 17:42:25,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884416612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:25,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:25,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:42:25,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167272812] [2021-12-06 17:42:25,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:25,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:42:25,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:25,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:42:25,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:42:25,998 INFO L87 Difference]: Start difference. First operand has 78 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 65 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:42:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:26,027 INFO L93 Difference]: Finished difference Result 148 states and 199 transitions. [2021-12-06 17:42:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:42:26,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-06 17:42:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:26,036 INFO L225 Difference]: With dead ends: 148 [2021-12-06 17:42:26,036 INFO L226 Difference]: Without dead ends: 69 [2021-12-06 17:42:26,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:42:26,043 INFO L933 BasicCegarLoop]: 96 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, 96 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 [2021-12-06 17:42:26,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:42:26,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-06 17:42:26,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-12-06 17:42:26,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 57 states have internal predecessors, (66), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-06 17:42:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2021-12-06 17:42:26,086 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 19 [2021-12-06 17:42:26,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:26,087 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2021-12-06 17:42:26,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:42:26,087 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2021-12-06 17:42:26,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-06 17:42:26,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:26,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:26,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:42:26,090 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash 999716962, now seen corresponding path program 1 times [2021-12-06 17:42:26,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:26,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876163049] [2021-12-06 17:42:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:26,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:26,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:26,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876163049] [2021-12-06 17:42:26,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876163049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:26,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:26,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:42:26,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158734898] [2021-12-06 17:42:26,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:26,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:42:26,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:26,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:42:26,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:42:26,149 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:42:26,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:26,160 INFO L93 Difference]: Finished difference Result 100 states and 124 transitions. [2021-12-06 17:42:26,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:42:26,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-06 17:42:26,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:26,162 INFO L225 Difference]: With dead ends: 100 [2021-12-06 17:42:26,162 INFO L226 Difference]: Without dead ends: 60 [2021-12-06 17:42:26,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:42:26,164 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 16 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 127 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 [2021-12-06 17:42:26,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:42:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-06 17:42:26,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-12-06 17:42:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 51 states have internal predecessors, (59), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-06 17:42:26,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 75 transitions. [2021-12-06 17:42:26,172 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 75 transitions. Word has length 20 [2021-12-06 17:42:26,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:26,172 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 75 transitions. [2021-12-06 17:42:26,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:42:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2021-12-06 17:42:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 17:42:26,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:26,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:26,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:42:26,173 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:26,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:26,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1281821319, now seen corresponding path program 1 times [2021-12-06 17:42:26,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:26,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333769482] [2021-12-06 17:42:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:26,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:26,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:26,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333769482] [2021-12-06 17:42:26,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333769482] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:26,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:26,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:42:26,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874664784] [2021-12-06 17:42:26,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:26,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:42:26,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:26,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:42:26,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:42:26,222 INFO L87 Difference]: Start difference. First operand 60 states and 75 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:42:26,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:26,241 INFO L93 Difference]: Finished difference Result 165 states and 211 transitions. [2021-12-06 17:42:26,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:42:26,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-06 17:42:26,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:26,243 INFO L225 Difference]: With dead ends: 165 [2021-12-06 17:42:26,243 INFO L226 Difference]: Without dead ends: 112 [2021-12-06 17:42:26,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:42:26,245 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 55 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:26,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 157 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:42:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-12-06 17:42:26,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2021-12-06 17:42:26,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 80 states have (on average 1.3375) internal successors, (107), 91 states have internal predecessors, (107), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-06 17:42:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 139 transitions. [2021-12-06 17:42:26,261 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 139 transitions. Word has length 24 [2021-12-06 17:42:26,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:26,262 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 139 transitions. [2021-12-06 17:42:26,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:42:26,262 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 139 transitions. [2021-12-06 17:42:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 17:42:26,263 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:26,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:26,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:42:26,263 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:26,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:26,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1956762765, now seen corresponding path program 1 times [2021-12-06 17:42:26,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:26,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564302883] [2021-12-06 17:42:26,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:26,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:42:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:26,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:26,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564302883] [2021-12-06 17:42:26,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564302883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:26,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:26,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:42:26,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351611075] [2021-12-06 17:42:26,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:26,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:42:26,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:26,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:42:26,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:42:26,321 INFO L87 Difference]: Start difference. First operand 109 states and 139 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-12-06 17:42:26,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:26,372 INFO L93 Difference]: Finished difference Result 301 states and 398 transitions. [2021-12-06 17:42:26,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:42:26,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2021-12-06 17:42:26,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:26,375 INFO L225 Difference]: With dead ends: 301 [2021-12-06 17:42:26,375 INFO L226 Difference]: Without dead ends: 199 [2021-12-06 17:42:26,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:42:26,377 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 48 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:26,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 299 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:42:26,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-06 17:42:26,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-12-06 17:42:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 144 states have (on average 1.3194444444444444) internal successors, (190), 163 states have internal predecessors, (190), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2021-12-06 17:42:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 256 transitions. [2021-12-06 17:42:26,401 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 256 transitions. Word has length 29 [2021-12-06 17:42:26,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:26,402 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 256 transitions. [2021-12-06 17:42:26,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-12-06 17:42:26,402 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 256 transitions. [2021-12-06 17:42:26,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 17:42:26,404 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:26,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:26,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:42:26,404 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:26,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:26,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2058553646, now seen corresponding path program 1 times [2021-12-06 17:42:26,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:26,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486596231] [2021-12-06 17:42:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:26,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:42:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:26,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:26,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486596231] [2021-12-06 17:42:26,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486596231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:26,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:26,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:42:26,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939340885] [2021-12-06 17:42:26,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:26,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:42:26,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:26,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:42:26,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:42:26,442 INFO L87 Difference]: Start difference. First operand 199 states and 256 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-12-06 17:42:26,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:26,458 INFO L93 Difference]: Finished difference Result 333 states and 437 transitions. [2021-12-06 17:42:26,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:42:26,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 31 [2021-12-06 17:42:26,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:26,460 INFO L225 Difference]: With dead ends: 333 [2021-12-06 17:42:26,460 INFO L226 Difference]: Without dead ends: 141 [2021-12-06 17:42:26,462 INFO L932 BasicCegarLoop]: 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 [2021-12-06 17:42:26,463 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:26,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:42:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-12-06 17:42:26,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2021-12-06 17:42:26,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 108 states have (on average 1.2592592592592593) internal successors, (136), 115 states have internal predecessors, (136), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-06 17:42:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 168 transitions. [2021-12-06 17:42:26,477 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 168 transitions. Word has length 31 [2021-12-06 17:42:26,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:26,477 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 168 transitions. [2021-12-06 17:42:26,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-12-06 17:42:26,477 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 168 transitions. [2021-12-06 17:42:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 17:42:26,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:26,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:26,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:42:26,479 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1598576531, now seen corresponding path program 1 times [2021-12-06 17:42:26,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:26,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554402315] [2021-12-06 17:42:26,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:26,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:42:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:26,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:26,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:26,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554402315] [2021-12-06 17:42:26,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554402315] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:26,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:26,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:42:26,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067382609] [2021-12-06 17:42:26,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:26,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:42:26,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:26,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:42:26,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:42:26,532 INFO L87 Difference]: Start difference. First operand 139 states and 168 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-12-06 17:42:26,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:26,592 INFO L93 Difference]: Finished difference Result 149 states and 178 transitions. [2021-12-06 17:42:26,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:42:26,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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 33 [2021-12-06 17:42:26,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:26,593 INFO L225 Difference]: With dead ends: 149 [2021-12-06 17:42:26,593 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 17:42:26,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:42:26,594 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 49 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:26,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 149 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:42:26,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 17:42:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 17:42:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:42:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 17:42:26,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-12-06 17:42:26,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:26,596 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:42:26,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-12-06 17:42:26,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:42:26,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 17:42:26,598 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:42:26,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:42:26,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 17:42:26,855 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 262 269) the Hoare annotation is: true [2021-12-06 17:42:26,855 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 262 269) no Hoare annotation was computed. [2021-12-06 17:42:26,855 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 262 269) no Hoare annotation was computed. [2021-12-06 17:42:26,855 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 735 746) the Hoare annotation is: true [2021-12-06 17:42:26,855 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 735 746) no Hoare annotation was computed. [2021-12-06 17:42:26,855 INFO L858 garLoopResultBuilder]: For program point L739-1(lines 735 746) no Hoare annotation was computed. [2021-12-06 17:42:26,856 INFO L858 garLoopResultBuilder]: For program point L801(line 801) no Hoare annotation was computed. [2021-12-06 17:42:26,856 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 790 819) no Hoare annotation was computed. [2021-12-06 17:42:26,856 INFO L861 garLoopResultBuilder]: At program point L800-2(lines 800 814) the Hoare annotation is: true [2021-12-06 17:42:26,856 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 790 819) the Hoare annotation is: true [2021-12-06 17:42:26,856 INFO L861 garLoopResultBuilder]: At program point L796(line 796) the Hoare annotation is: true [2021-12-06 17:42:26,856 INFO L858 garLoopResultBuilder]: For program point L796-1(line 796) no Hoare annotation was computed. [2021-12-06 17:42:26,856 INFO L861 garLoopResultBuilder]: At program point L815(lines 790 819) the Hoare annotation is: true [2021-12-06 17:42:26,856 INFO L858 garLoopResultBuilder]: For program point L811(line 811) no Hoare annotation was computed. [2021-12-06 17:42:26,856 INFO L858 garLoopResultBuilder]: For program point L804(lines 804 808) no Hoare annotation was computed. [2021-12-06 17:42:26,856 INFO L861 garLoopResultBuilder]: At program point L804-1(lines 804 808) the Hoare annotation is: true [2021-12-06 17:42:26,856 INFO L854 garLoopResultBuilder]: At program point L93(lines 88 95) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-06 17:42:26,856 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 183 202) no Hoare annotation was computed. [2021-12-06 17:42:26,857 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 180 203) no Hoare annotation was computed. [2021-12-06 17:42:26,857 INFO L854 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-06 17:42:26,857 INFO L854 garLoopResultBuilder]: At program point L222(line 222) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-06 17:42:26,857 INFO L854 garLoopResultBuilder]: At program point L218(line 218) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-06 17:42:26,857 INFO L858 garLoopResultBuilder]: For program point L218-1(line 218) no Hoare annotation was computed. [2021-12-06 17:42:26,857 INFO L854 garLoopResultBuilder]: At program point L784(lines 779 787) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2021-12-06 17:42:26,857 INFO L854 garLoopResultBuilder]: At program point L231(line 231) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-12-06 17:42:26,857 INFO L854 garLoopResultBuilder]: At program point L231-1(lines 212 236) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-12-06 17:42:26,857 INFO L858 garLoopResultBuilder]: For program point L715(lines 715 719) no Hoare annotation was computed. [2021-12-06 17:42:26,857 INFO L854 garLoopResultBuilder]: At program point L715-2(lines 711 722) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-06 17:42:26,858 INFO L858 garLoopResultBuilder]: For program point L897(lines 897 903) no Hoare annotation was computed. [2021-12-06 17:42:26,858 INFO L858 garLoopResultBuilder]: For program point L191-1(lines 191 197) no Hoare annotation was computed. [2021-12-06 17:42:26,858 INFO L854 garLoopResultBuilder]: At program point L286(lines 281 289) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2021-12-06 17:42:26,858 INFO L858 garLoopResultBuilder]: For program point L893(lines 893 906) no Hoare annotation was computed. [2021-12-06 17:42:26,858 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 228) no Hoare annotation was computed. [2021-12-06 17:42:26,858 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-06 17:42:26,858 INFO L854 garLoopResultBuilder]: At program point L893-1(lines 885 909) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2021-12-06 17:42:26,858 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 233) no Hoare annotation was computed. [2021-12-06 17:42:26,858 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 180 203) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-12-06 17:42:26,858 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 180 203) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 128) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point L122-1(lines 122 128) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L854 garLoopResultBuilder]: At program point L160(lines 111 161) the Hoare annotation is: false [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L861 garLoopResultBuilder]: At program point L858(lines 851 860) the Hoare annotation is: true [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 154) no Hoare annotation was computed. [2021-12-06 17:42:26,859 INFO L854 garLoopResultBuilder]: At program point L338(lines 326 340) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 17:42:26,859 INFO L854 garLoopResultBuilder]: At program point L148-2(lines 142 155) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 17:42:26,859 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 336) no Hoare annotation was computed. [2021-12-06 17:42:26,860 INFO L858 garLoopResultBuilder]: For program point L330-1(lines 330 336) no Hoare annotation was computed. [2021-12-06 17:42:26,860 INFO L858 garLoopResultBuilder]: For program point L871(lines 871 878) no Hoare annotation was computed. [2021-12-06 17:42:26,860 INFO L858 garLoopResultBuilder]: For program point L871-2(lines 871 878) no Hoare annotation was computed. [2021-12-06 17:42:26,860 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 138) no Hoare annotation was computed. [2021-12-06 17:42:26,860 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2021-12-06 17:42:26,860 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 17:42:26,860 INFO L854 garLoopResultBuilder]: At program point L157(lines 112 159) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 17:42:26,860 INFO L854 garLoopResultBuilder]: At program point L124(line 124) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 17:42:26,860 INFO L854 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:42:26,860 INFO L861 garLoopResultBuilder]: At program point L880(lines 861 883) the Hoare annotation is: true [2021-12-06 17:42:26,860 INFO L854 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:42:26,861 INFO L858 garLoopResultBuilder]: For program point L113(lines 112 159) no Hoare annotation was computed. [2021-12-06 17:42:26,861 INFO L854 garLoopResultBuilder]: At program point L848(lines 844 850) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:42:26,861 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 155) no Hoare annotation was computed. [2021-12-06 17:42:26,861 INFO L854 garLoopResultBuilder]: At program point L332(line 332) the Hoare annotation is: false [2021-12-06 17:42:26,861 INFO L854 garLoopResultBuilder]: At program point L134(line 134) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 17:42:26,861 INFO L854 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:42:26,861 INFO L861 garLoopResultBuilder]: At program point L163(lines 102 167) the Hoare annotation is: true [2021-12-06 17:42:26,861 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 723 734) no Hoare annotation was computed. [2021-12-06 17:42:26,861 INFO L858 garLoopResultBuilder]: For program point L727-1(lines 723 734) no Hoare annotation was computed. [2021-12-06 17:42:26,861 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 723 734) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-12-06 17:42:26,861 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 204 210) no Hoare annotation was computed. [2021-12-06 17:42:26,862 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 204 210) the Hoare annotation is: true [2021-12-06 17:42:26,862 INFO L861 garLoopResultBuilder]: At program point L752(lines 747 755) the Hoare annotation is: true [2021-12-06 17:42:26,862 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 270 280) the Hoare annotation is: true [2021-12-06 17:42:26,862 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 270 280) no Hoare annotation was computed. [2021-12-06 17:42:26,862 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 270 280) no Hoare annotation was computed. [2021-12-06 17:42:26,864 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-06 17:42:26,865 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:42:26,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:42:26 BoogieIcfgContainer [2021-12-06 17:42:26,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:42:26,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:42:26,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:42:26,879 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:42:26,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:25" (3/4) ... [2021-12-06 17:42:26,881 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 17:42:26,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-06 17:42:26,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-06 17:42:26,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-06 17:42:26,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-06 17:42:26,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-06 17:42:26,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-06 17:42:26,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-06 17:42:26,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2021-12-06 17:42:26,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-06 17:42:26,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 17:42:26,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 17:42:26,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 17:42:26,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:42:26,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:42:26,909 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-06 17:42:26,909 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel) [2021-12-06 17:42:26,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2021-12-06 17:42:26,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2021-12-06 17:42:26,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2021-12-06 17:42:26,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-06 17:42:26,927 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:42:26,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:42:26,927 INFO L158 Benchmark]: Toolchain (without parser) took 1863.74ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 67.5MB in the end (delta: 19.7MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2021-12-06 17:42:26,927 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:42:26,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.36ms. Allocated memory is still 123.7MB. Free memory was 87.0MB in the beginning and 92.7MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:42:26,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.93ms. Allocated memory is still 123.7MB. Free memory was 92.7MB in the beginning and 90.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:42:26,928 INFO L158 Benchmark]: Boogie Preprocessor took 19.47ms. Allocated memory is still 123.7MB. Free memory was 90.2MB in the beginning and 89.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:42:26,928 INFO L158 Benchmark]: RCFGBuilder took 337.03ms. Allocated memory is still 123.7MB. Free memory was 89.2MB in the beginning and 74.0MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 17:42:26,929 INFO L158 Benchmark]: TraceAbstraction took 1130.39ms. Allocated memory is still 123.7MB. Free memory was 73.4MB in the beginning and 72.9MB in the end (delta: 541.5kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2021-12-06 17:42:26,929 INFO L158 Benchmark]: Witness Printer took 48.33ms. Allocated memory is still 123.7MB. Free memory was 72.9MB in the beginning and 67.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 17:42:26,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.36ms. Allocated memory is still 123.7MB. Free memory was 87.0MB in the beginning and 92.7MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.93ms. Allocated memory is still 123.7MB. Free memory was 92.7MB in the beginning and 90.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.47ms. Allocated memory is still 123.7MB. Free memory was 90.2MB in the beginning and 89.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 337.03ms. Allocated memory is still 123.7MB. Free memory was 89.2MB in the beginning and 74.0MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1130.39ms. Allocated memory is still 123.7MB. Free memory was 73.4MB in the beginning and 72.9MB in the end (delta: 541.5kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Witness Printer took 48.33ms. Allocated memory is still 123.7MB. Free memory was 72.9MB in the beginning and 67.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 92]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 205 mSDsluCounter, 877 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 442 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 435 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 281 PreInvPairs, 323 NumberOfFragments, 233 HoareAnnotationTreeSize, 281 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 36 FomulaSimplificationsInter, 905 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 779]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 851]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 212]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel) - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 711]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) RESULT: Ultimate proved your program to be correct! [2021-12-06 17:42:26,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3020f7-32df-44d4-9d06-3ddfab0cb92f/bin/uautomizer-DrprNOufMa/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 Result: TRUE