./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8 --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 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:22:08,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:22:08,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:22:08,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:22:08,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:22:08,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:22:08,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:22:08,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:22:08,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:22:08,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:22:08,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:22:08,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:22:08,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:22:08,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:22:08,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:22:08,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:22:08,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:22:08,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:22:08,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:22:08,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:22:08,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:22:08,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:22:08,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:22:08,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:22:08,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:22:08,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:22:08,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:22:08,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:22:08,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:22:08,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:22:08,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:22:08,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:22:08,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:22:08,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:22:08,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:22:08,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:22:08,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:22:08,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:22:08,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:22:08,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:22:08,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:22:08,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:22:08,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:22:08,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:22:08,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:22:08,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:22:08,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:22:08,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:22:08,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:22:08,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:22:08,641 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:22:08,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:22:08,643 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:22:08,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:22:08,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:22:08,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:22:08,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:22:08,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:22:08,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:22:08,645 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:22:08,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:22:08,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:22:08,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:22:08,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:22:08,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:22:08,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:22:08,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:22:08,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:22:08,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:22:08,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:22:08,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:22:08,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:22:08,650 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:22:08,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:22:08,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:22:08,651 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_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 [2022-11-16 12:22:08,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:22:08,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:22:08,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:22:08,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:22:08,967 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:22:08,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2022-11-16 12:22:09,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/data/ab69c6114/c6bd4d454f064f9e8dc4bbbf4983adba/FLAG038f8e599 [2022-11-16 12:22:09,543 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:22:09,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2022-11-16 12:22:09,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/data/ab69c6114/c6bd4d454f064f9e8dc4bbbf4983adba/FLAG038f8e599 [2022-11-16 12:22:09,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/data/ab69c6114/c6bd4d454f064f9e8dc4bbbf4983adba [2022-11-16 12:22:09,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:22:09,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:22:09,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:22:09,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:22:09,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:22:09,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:22:09" (1/1) ... [2022-11-16 12:22:09,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8c7bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:09, skipping insertion in model container [2022-11-16 12:22:09,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:22:09" (1/1) ... [2022-11-16 12:22:09,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:22:09,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:22:10,284 WARN L229 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_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14834,14847] [2022-11-16 12:22:10,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:10,308 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:22:10,386 WARN L229 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_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14834,14847] [2022-11-16 12:22:10,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:10,424 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:22:10,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10 WrapperNode [2022-11-16 12:22:10,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:22:10,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:22:10,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:22:10,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:22:10,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,509 INFO L138 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 222 [2022-11-16 12:22:10,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:22:10,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:22:10,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:22:10,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:22:10,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,532 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:22:10,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:22:10,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:22:10,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:22:10,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (1/1) ... [2022-11-16 12:22:10,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:22:10,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:22:10,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:22:10,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:22:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:22:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-16 12:22:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-16 12:22:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 12:22:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 12:22:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 12:22:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 12:22:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 12:22:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 12:22:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-16 12:22:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-16 12:22:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:22:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 12:22:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 12:22:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:22:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:22:10,753 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:22:10,755 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:22:11,075 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:22:11,083 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:22:11,083 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:22:11,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:11 BoogieIcfgContainer [2022-11-16 12:22:11,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:22:11,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:22:11,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:22:11,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:22:11,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:22:09" (1/3) ... [2022-11-16 12:22:11,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6c5752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:11, skipping insertion in model container [2022-11-16 12:22:11,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:10" (2/3) ... [2022-11-16 12:22:11,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6c5752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:11, skipping insertion in model container [2022-11-16 12:22:11,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:11" (3/3) ... [2022-11-16 12:22:11,109 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2022-11-16 12:22:11,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:22:11,134 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:22:11,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:22:11,204 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@53ed2de0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:22:11,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:22:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 12:22:11,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:22:11,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:11,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:11,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:11,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:11,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1265450001, now seen corresponding path program 1 times [2022-11-16 12:22:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:11,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926569425] [2022-11-16 12:22:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:11,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:11,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:11,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926569425] [2022-11-16 12:22:11,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926569425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:11,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:11,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:22:11,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737099712] [2022-11-16 12:22:11,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:11,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:22:11,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:11,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:22:11,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:22:11,595 INFO L87 Difference]: Start difference. First operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) 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) [2022-11-16 12:22:11,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:11,633 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2022-11-16 12:22:11,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:22:11,636 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 [2022-11-16 12:22:11,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:11,644 INFO L225 Difference]: With dead ends: 144 [2022-11-16 12:22:11,644 INFO L226 Difference]: Without dead ends: 67 [2022-11-16 12:22:11,648 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:11,652 INFO L413 NwaCegarLoop]: 95 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, 95 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:11,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:22:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-16 12:22:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-16 12:22:11,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 57 states have internal predecessors, (67), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-16 12:22:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-11-16 12:22:11,711 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 19 [2022-11-16 12:22:11,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:11,712 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-11-16 12:22:11,712 INFO L496 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) [2022-11-16 12:22:11,712 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-11-16 12:22:11,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 12:22:11,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:11,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:11,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:22:11,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:11,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:11,716 INFO L85 PathProgramCache]: Analyzing trace with hash 179493032, now seen corresponding path program 1 times [2022-11-16 12:22:11,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:11,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606636046] [2022-11-16 12:22:11,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:11,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:11,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:11,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606636046] [2022-11-16 12:22:11,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606636046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:11,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:11,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:11,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123780153] [2022-11-16 12:22:11,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:11,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:11,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:11,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:11,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:11,851 INFO L87 Difference]: Start difference. First operand 67 states and 86 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) [2022-11-16 12:22:11,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:11,867 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2022-11-16 12:22:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:11,868 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 [2022-11-16 12:22:11,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:11,869 INFO L225 Difference]: With dead ends: 96 [2022-11-16 12:22:11,870 INFO L226 Difference]: Without dead ends: 58 [2022-11-16 12:22:11,870 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:11,872 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:11,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:22:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-16 12:22:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-16 12:22:11,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 12:22:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2022-11-16 12:22:11,883 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 20 [2022-11-16 12:22:11,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:11,883 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2022-11-16 12:22:11,884 INFO L496 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) [2022-11-16 12:22:11,884 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-11-16 12:22:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:22:11,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:11,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:11,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:22:11,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:11,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:11,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2144024677, now seen corresponding path program 1 times [2022-11-16 12:22:11,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:11,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160034334] [2022-11-16 12:22:11,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:11,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:12,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:12,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160034334] [2022-11-16 12:22:12,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160034334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:12,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:12,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:22:12,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176888576] [2022-11-16 12:22:12,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:12,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:22:12,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:12,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:22:12,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:22:12,142 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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) [2022-11-16 12:22:12,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:12,339 INFO L93 Difference]: Finished difference Result 197 states and 259 transitions. [2022-11-16 12:22:12,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:22:12,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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 [2022-11-16 12:22:12,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:12,342 INFO L225 Difference]: With dead ends: 197 [2022-11-16 12:22:12,342 INFO L226 Difference]: Without dead ends: 146 [2022-11-16 12:22:12,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:22:12,344 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 155 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:12,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 392 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:12,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-16 12:22:12,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2022-11-16 12:22:12,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 121 states have internal predecessors, (147), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-16 12:22:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2022-11-16 12:22:12,372 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 24 [2022-11-16 12:22:12,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:12,373 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2022-11-16 12:22:12,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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) [2022-11-16 12:22:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2022-11-16 12:22:12,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 12:22:12,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:12,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:12,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:22:12,376 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:12,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:12,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1279070703, now seen corresponding path program 1 times [2022-11-16 12:22:12,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:12,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847381805] [2022-11-16 12:22:12,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:12,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:12,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:12,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847381805] [2022-11-16 12:22:12,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847381805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:12,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:12,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:22:12,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167411475] [2022-11-16 12:22:12,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:12,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:22:12,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:12,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:22:12,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:22:12,586 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-16 12:22:12,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:12,694 INFO L93 Difference]: Finished difference Result 389 states and 533 transitions. [2022-11-16 12:22:12,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:22:12,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 28 [2022-11-16 12:22:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:12,698 INFO L225 Difference]: With dead ends: 389 [2022-11-16 12:22:12,698 INFO L226 Difference]: Without dead ends: 256 [2022-11-16 12:22:12,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:22:12,701 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:12,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 288 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:12,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-16 12:22:12,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-11-16 12:22:12,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 218 states have internal predecessors, (262), 36 states have call successors, (36), 28 states have call predecessors, (36), 25 states have return successors, (42), 21 states have call predecessors, (42), 36 states have call successors, (42) [2022-11-16 12:22:12,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 340 transitions. [2022-11-16 12:22:12,755 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 340 transitions. Word has length 28 [2022-11-16 12:22:12,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:12,756 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 340 transitions. [2022-11-16 12:22:12,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-16 12:22:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 340 transitions. [2022-11-16 12:22:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 12:22:12,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:12,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:12,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:22:12,759 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:12,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:12,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1024780246, now seen corresponding path program 1 times [2022-11-16 12:22:12,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:12,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565260174] [2022-11-16 12:22:12,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:12,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:12,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:12,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565260174] [2022-11-16 12:22:12,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565260174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:12,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:12,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:22:12,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622131819] [2022-11-16 12:22:12,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:12,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:12,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:12,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:12,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:12,873 INFO L87 Difference]: Start difference. First operand 256 states and 340 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2022-11-16 12:22:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:12,914 INFO L93 Difference]: Finished difference Result 444 states and 600 transitions. [2022-11-16 12:22:12,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:12,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 30 [2022-11-16 12:22:12,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:12,923 INFO L225 Difference]: With dead ends: 444 [2022-11-16 12:22:12,926 INFO L226 Difference]: Without dead ends: 195 [2022-11-16 12:22:12,930 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:12,932 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 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 [2022-11-16 12:22:12,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:22:12,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-16 12:22:12,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2022-11-16 12:22:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 149 states have (on average 1.2751677852348993) internal successors, (190), 159 states have internal predecessors, (190), 22 states have call successors, (22), 22 states have call predecessors, (22), 19 states have return successors, (24), 19 states have call predecessors, (24), 22 states have call successors, (24) [2022-11-16 12:22:12,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 236 transitions. [2022-11-16 12:22:12,973 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 236 transitions. Word has length 30 [2022-11-16 12:22:12,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:12,979 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 236 transitions. [2022-11-16 12:22:12,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2022-11-16 12:22:12,979 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 236 transitions. [2022-11-16 12:22:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 12:22:12,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:12,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:12,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:22:12,987 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:12,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1714096393, now seen corresponding path program 1 times [2022-11-16 12:22:12,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:12,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610791902] [2022-11-16 12:22:12,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:12,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:13,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:22:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:13,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:13,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610791902] [2022-11-16 12:22:13,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610791902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:13,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:13,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:22:13,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913375345] [2022-11-16 12:22:13,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:13,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:22:13,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:13,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:22:13,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:22:13,119 INFO L87 Difference]: Start difference. First operand 191 states and 236 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:22:13,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:13,216 INFO L93 Difference]: Finished difference Result 206 states and 252 transitions. [2022-11-16 12:22:13,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:22:13,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-16 12:22:13,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:13,218 INFO L225 Difference]: With dead ends: 206 [2022-11-16 12:22:13,218 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:22:13,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:22:13,226 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:13,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 143 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:22:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:22:13,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:22:13,230 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) [2022-11-16 12:22:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:22:13,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-11-16 12:22:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:13,233 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:22:13,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:22:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:22:13,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:22:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:22:13,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:22:13,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:22:13,984 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 587 594) the Hoare annotation is: true [2022-11-16 12:22:13,984 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 587 594) no Hoare annotation was computed. [2022-11-16 12:22:13,984 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 587 594) no Hoare annotation was computed. [2022-11-16 12:22:13,984 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 546 552) no Hoare annotation was computed. [2022-11-16 12:22:13,984 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 546 552) the Hoare annotation is: true [2022-11-16 12:22:13,984 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 449 460) the Hoare annotation is: true [2022-11-16 12:22:13,985 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 449 460) no Hoare annotation was computed. [2022-11-16 12:22:13,985 INFO L899 garLoopResultBuilder]: For program point L453-1(lines 449 460) no Hoare annotation was computed. [2022-11-16 12:22:13,985 INFO L899 garLoopResultBuilder]: For program point L770-1(line 770) no Hoare annotation was computed. [2022-11-16 12:22:13,985 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 764 793) no Hoare annotation was computed. [2022-11-16 12:22:13,985 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 764 793) the Hoare annotation is: true [2022-11-16 12:22:13,985 INFO L902 garLoopResultBuilder]: At program point L789(lines 764 793) the Hoare annotation is: true [2022-11-16 12:22:13,985 INFO L899 garLoopResultBuilder]: For program point L785(line 785) no Hoare annotation was computed. [2022-11-16 12:22:13,986 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 782) no Hoare annotation was computed. [2022-11-16 12:22:13,986 INFO L902 garLoopResultBuilder]: At program point L778-1(lines 778 782) the Hoare annotation is: true [2022-11-16 12:22:13,986 INFO L899 garLoopResultBuilder]: For program point L775(line 775) no Hoare annotation was computed. [2022-11-16 12:22:13,986 INFO L902 garLoopResultBuilder]: At program point L774-2(lines 774 788) the Hoare annotation is: true [2022-11-16 12:22:13,986 INFO L902 garLoopResultBuilder]: At program point L770(line 770) the Hoare annotation is: true [2022-11-16 12:22:13,987 INFO L895 garLoopResultBuilder]: At program point L568(line 568) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 12:22:13,987 INFO L895 garLoopResultBuilder]: At program point L564(line 564) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 12:22:13,987 INFO L895 garLoopResultBuilder]: At program point L498(lines 493 501) 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)))) [2022-11-16 12:22:13,987 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 522 545) no Hoare annotation was computed. [2022-11-16 12:22:13,987 INFO L895 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-11-16 12:22:13,988 INFO L895 garLoopResultBuilder]: At program point L573-1(lines 554 578) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-11-16 12:22:13,988 INFO L895 garLoopResultBuilder]: At program point L507(lines 502 510) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 12:22:13,988 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 664) no Hoare annotation was computed. [2022-11-16 12:22:13,988 INFO L899 garLoopResultBuilder]: For program point L660-2(lines 660 664) no Hoare annotation was computed. [2022-11-16 12:22:13,988 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2022-11-16 12:22:13,988 INFO L895 garLoopResultBuilder]: At program point L429-2(lines 425 436) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 12:22:13,989 INFO L895 garLoopResultBuilder]: At program point L611(lines 606 614) 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))))) [2022-11-16 12:22:13,989 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 533 539) no Hoare annotation was computed. [2022-11-16 12:22:13,989 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 570) no Hoare annotation was computed. [2022-11-16 12:22:13,989 INFO L899 garLoopResultBuilder]: For program point L690(line 690) no Hoare annotation was computed. [2022-11-16 12:22:13,989 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 575) no Hoare annotation was computed. [2022-11-16 12:22:13,989 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 915) no Hoare annotation was computed. [2022-11-16 12:22:13,990 INFO L899 garLoopResultBuilder]: For program point L905(lines 905 918) no Hoare annotation was computed. [2022-11-16 12:22:13,990 INFO L895 garLoopResultBuilder]: At program point L905-1(lines 897 921) 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))))) [2022-11-16 12:22:13,990 INFO L895 garLoopResultBuilder]: At program point L666(lines 651 669) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 12:22:13,990 INFO L895 garLoopResultBuilder]: At program point L691(lines 686 693) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 12:22:13,990 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 522 545) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-11-16 12:22:13,991 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 525 544) no Hoare annotation was computed. [2022-11-16 12:22:13,991 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 522 545) no Hoare annotation was computed. [2022-11-16 12:22:13,991 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 690) no Hoare annotation was computed. [2022-11-16 12:22:13,991 INFO L902 garLoopResultBuilder]: At program point L832(lines 825 834) the Hoare annotation is: true [2022-11-16 12:22:13,991 INFO L902 garLoopResultBuilder]: At program point L857(lines 838 860) the Hoare annotation is: true [2022-11-16 12:22:13,991 INFO L895 garLoopResultBuilder]: At program point L754(lines 705 755) the Hoare annotation is: false [2022-11-16 12:22:13,992 INFO L899 garLoopResultBuilder]: For program point L742(lines 742 748) no Hoare annotation was computed. [2022-11-16 12:22:13,992 INFO L895 garLoopResultBuilder]: At program point L676(line 676) the Hoare annotation is: false [2022-11-16 12:22:13,992 INFO L895 garLoopResultBuilder]: At program point L742-2(lines 736 749) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:22:13,992 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:22:13,992 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:22:13,992 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:22:13,992 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2022-11-16 12:22:13,993 INFO L899 garLoopResultBuilder]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2022-11-16 12:22:13,993 INFO L895 garLoopResultBuilder]: At program point L751(lines 706 753) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:22:13,993 INFO L895 garLoopResultBuilder]: At program point L718(line 718) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:22:13,993 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:22:13,993 INFO L895 garLoopResultBuilder]: At program point L892(lines 887 895) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:22:13,994 INFO L895 garLoopResultBuilder]: At program point L822(lines 818 824) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-11-16 12:22:13,994 INFO L895 garLoopResultBuilder]: At program point L884(lines 880 886) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:22:13,994 INFO L895 garLoopResultBuilder]: At program point L682(lines 670 684) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:22:13,994 INFO L899 garLoopResultBuilder]: For program point L707(lines 706 753) no Hoare annotation was computed. [2022-11-16 12:22:13,994 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 680) no Hoare annotation was computed. [2022-11-16 12:22:13,994 INFO L899 garLoopResultBuilder]: For program point L674-1(lines 674 680) no Hoare annotation was computed. [2022-11-16 12:22:14,005 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 749) no Hoare annotation was computed. [2022-11-16 12:22:14,005 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:22:14,005 INFO L902 garLoopResultBuilder]: At program point L757(lines 696 761) the Hoare annotation is: true [2022-11-16 12:22:14,005 INFO L899 garLoopResultBuilder]: For program point L848(lines 848 855) no Hoare annotation was computed. [2022-11-16 12:22:14,005 INFO L899 garLoopResultBuilder]: For program point L848-2(lines 848 855) no Hoare annotation was computed. [2022-11-16 12:22:14,006 INFO L895 garLoopResultBuilder]: At program point L877(lines 873 879) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:22:14,006 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2022-11-16 12:22:14,006 INFO L899 garLoopResultBuilder]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2022-11-16 12:22:14,006 INFO L899 garLoopResultBuilder]: For program point L708(lines 708 712) no Hoare annotation was computed. [2022-11-16 12:22:14,007 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 437 448) no Hoare annotation was computed. [2022-11-16 12:22:14,007 INFO L899 garLoopResultBuilder]: For program point L441-1(lines 437 448) no Hoare annotation was computed. [2022-11-16 12:22:14,008 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 437 448) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-16 12:22:14,011 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 12:22:14,013 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:22:14,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:22:14 BoogieIcfgContainer [2022-11-16 12:22:14,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:22:14,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:22:14,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:22:14,046 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:22:14,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:11" (3/4) ... [2022-11-16 12:22:14,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:22:14,061 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-16 12:22:14,061 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-16 12:22:14,061 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 12:22:14,061 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 12:22:14,061 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 12:22:14,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 12:22:14,078 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-11-16 12:22:14,079 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 12:22:14,079 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 12:22:14,079 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:22:14,080 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:22:14,080 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:22:14,080 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:22:14,112 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-16 12:22:14,112 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2022-11-16 12:22:14,114 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-16 12:22:14,117 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) [2022-11-16 12:22:14,118 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) [2022-11-16 12:22:14,119 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)) [2022-11-16 12:22:14,119 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-16 12:22:14,119 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)) [2022-11-16 12:22:14,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-16 12:22:14,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-16 12:22:14,156 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:22:14,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:22:14,157 INFO L158 Benchmark]: Toolchain (without parser) took 4262.53ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 67.1MB in the beginning and 78.9MB in the end (delta: -11.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-11-16 12:22:14,157 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 109.1MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:22:14,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.43ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 76.1MB in the end (delta: -9.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:22:14,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.75ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 73.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:22:14,161 INFO L158 Benchmark]: Boogie Preprocessor took 25.65ms. Allocated memory is still 109.1MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:22:14,161 INFO L158 Benchmark]: RCFGBuilder took 549.16ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 54.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 12:22:14,162 INFO L158 Benchmark]: TraceAbstraction took 2957.88ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 54.0MB in the beginning and 84.1MB in the end (delta: -30.2MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2022-11-16 12:22:14,162 INFO L158 Benchmark]: Witness Printer took 110.88ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 78.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:22:14,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 109.1MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.43ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 76.1MB in the end (delta: -9.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.75ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 73.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.65ms. Allocated memory is still 109.1MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.16ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 54.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2957.88ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 54.0MB in the beginning and 84.1MB in the end (delta: -30.2MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. * Witness Printer took 110.88ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 78.9MB in the end (delta: 5.2MB). 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: 690]: 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 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 298 mSDsluCounter, 1092 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 669 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 423 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 352 PreInvPairs, 418 NumberOfFragments, 252 HoareAnnotationTreeSize, 352 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 35 FomulaSimplificationsInter, 1653 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 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: 774]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 825]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 670]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 706]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 651]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 838]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 887]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) RESULT: Ultimate proved your program to be correct! [2022-11-16 12:22:14,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccb67e3-14e1-4ce2-b73a-2c86d3861b51/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE