./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ --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 ebd5e4db60536079e2f1ed21b8808db42225a5df1dde0ff11f7a6872cf3ec06e --- 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-dbf71c6-m [2022-10-17 11:02:50,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:02:50,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:02:50,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:02:50,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:02:50,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:02:50,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:02:50,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:02:50,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:02:50,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:02:50,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:02:50,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:02:50,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:02:50,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:02:50,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:02:50,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:02:50,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:02:50,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:02:50,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:02:50,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:02:50,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:02:50,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:02:50,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:02:50,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:02:50,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:02:50,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:02:50,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:02:50,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:02:50,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:02:50,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:02:50,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:02:50,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:02:50,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:02:50,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:02:50,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:02:50,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:02:50,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:02:50,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:02:50,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:02:50,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:02:50,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:02:50,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 11:02:50,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:02:50,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:02:50,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:02:50,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:02:50,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:02:50,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:02:50,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:02:50,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:02:50,587 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:02:50,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:02:50,589 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:02:50,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:02:50,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:02:50,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:02:50,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:02:50,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:02:50,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:02:50,590 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:02:50,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:02:50,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:02:50,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:02:50,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:02:50,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:02:50,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:02:50,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:02:50,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:02:50,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:02:50,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:02:50,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:02:50,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:02:50,594 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:02:50,594 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:02:50,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:02:50,595 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_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd5e4db60536079e2f1ed21b8808db42225a5df1dde0ff11f7a6872cf3ec06e [2022-10-17 11:02:50,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:02:50,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:02:50,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:02:50,914 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:02:50,915 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:02:50,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c [2022-10-17 11:02:50,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/data/0fe8cdf62/1cb08b68540e49a4bf7250bc9543ce9a/FLAGb722050f6 [2022-10-17 11:02:51,491 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:02:51,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c [2022-10-17 11:02:51,504 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/data/0fe8cdf62/1cb08b68540e49a4bf7250bc9543ce9a/FLAGb722050f6 [2022-10-17 11:02:51,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/data/0fe8cdf62/1cb08b68540e49a4bf7250bc9543ce9a [2022-10-17 11:02:51,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:02:51,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:02:51,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:02:51,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:02:51,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:02:51,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:02:51" (1/1) ... [2022-10-17 11:02:51,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e232738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:51, skipping insertion in model container [2022-10-17 11:02:51,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:02:51" (1/1) ... [2022-10-17 11:02:51,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:02:51,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:02:52,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c[11292,11305] [2022-10-17 11:02:52,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:02:52,420 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:02:52,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c[11292,11305] [2022-10-17 11:02:52,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:02:52,520 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:02:52,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52 WrapperNode [2022-10-17 11:02:52,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:02:52,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:02:52,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:02:52,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:02:52,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,595 INFO L138 Inliner]: procedures = 50, calls = 146, calls flagged for inlining = 20, calls inlined = 14, statements flattened = 186 [2022-10-17 11:02:52,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:02:52,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:02:52,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:02:52,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:02:52,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:02:52,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:02:52,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:02:52,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:02:52,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (1/1) ... [2022-10-17 11:02:52,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:02:52,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:02:52,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:02:52,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:02:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:02:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 11:02:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 11:02:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 11:02:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 11:02:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-10-17 11:02:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-10-17 11:02:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:02:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-10-17 11:02:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-10-17 11:02:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:02:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:02:52,799 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:02:52,801 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:02:53,091 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:02:53,098 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:02:53,099 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 11:02:53,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:02:53 BoogieIcfgContainer [2022-10-17 11:02:53,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:02:53,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:02:53,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:02:53,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:02:53,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:02:51" (1/3) ... [2022-10-17 11:02:53,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572d971a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:02:53, skipping insertion in model container [2022-10-17 11:02:53,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:02:52" (2/3) ... [2022-10-17 11:02:53,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572d971a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:02:53, skipping insertion in model container [2022-10-17 11:02:53,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:02:53" (3/3) ... [2022-10-17 11:02:53,111 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product09.cil.c [2022-10-17 11:02:53,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:02:53,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:02:53,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:02:53,190 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;@19142e2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:02:53,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:02:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 50 states have internal predecessors, (65), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 11:02:53,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 11:02:53,205 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:53,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:02:53,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:02:53,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:53,212 INFO L85 PathProgramCache]: Analyzing trace with hash 801230020, now seen corresponding path program 1 times [2022-10-17 11:02:53,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:53,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448174363] [2022-10-17 11:02:53,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:53,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:53,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:53,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:53,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448174363] [2022-10-17 11:02:53,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448174363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:53,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:53,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:02:53,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002937794] [2022-10-17 11:02:53,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:53,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 11:02:53,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:53,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 11:02:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:02:53,634 INFO L87 Difference]: Start difference. First operand has 58 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 50 states have internal predecessors, (65), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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) [2022-10-17 11:02:53,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:53,660 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2022-10-17 11:02:53,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 11:02:53,663 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 [2022-10-17 11:02:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:53,671 INFO L225 Difference]: With dead ends: 108 [2022-10-17 11:02:53,671 INFO L226 Difference]: Without dead ends: 49 [2022-10-17 11:02:53,675 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 [2022-10-17 11:02:53,679 INFO L413 NwaCegarLoop]: 71 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, 71 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 [2022-10-17 11:02:53,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:02:53,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-17 11:02:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-10-17 11:02:53,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 42 states have internal predecessors, (51), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 11:02:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2022-10-17 11:02:53,722 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 19 [2022-10-17 11:02:53,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:53,722 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2022-10-17 11:02:53,723 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) [2022-10-17 11:02:53,723 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2022-10-17 11:02:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 11:02:53,725 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:53,726 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] [2022-10-17 11:02:53,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:02:53,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:02:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:53,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1313726312, now seen corresponding path program 1 times [2022-10-17 11:02:53,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:53,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712301208] [2022-10-17 11:02:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:53,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:53,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:53,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712301208] [2022-10-17 11:02:53,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712301208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:53,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:53,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:02:53,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724210708] [2022-10-17 11:02:53,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:53,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:02:53,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:53,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:02:53,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:02:53,957 INFO L87 Difference]: Start difference. First operand 49 states and 62 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) [2022-10-17 11:02:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:53,977 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2022-10-17 11:02:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:02:53,982 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 [2022-10-17 11:02:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:53,985 INFO L225 Difference]: With dead ends: 64 [2022-10-17 11:02:53,987 INFO L226 Difference]: Without dead ends: 40 [2022-10-17 11:02:53,988 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 [2022-10-17 11:02:53,990 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 12 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 82 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 [2022-10-17 11:02:53,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:02:53,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-17 11:02:53,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-17 11:02:54,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 36 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:02:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2022-10-17 11:02:54,005 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 20 [2022-10-17 11:02:54,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:54,005 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2022-10-17 11:02:54,005 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) [2022-10-17 11:02:54,005 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2022-10-17 11:02:54,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 11:02:54,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:54,007 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] [2022-10-17 11:02:54,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 11:02:54,007 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:02:54,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1888867153, now seen corresponding path program 1 times [2022-10-17 11:02:54,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:54,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888019339] [2022-10-17 11:02:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:54,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:54,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:54,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888019339] [2022-10-17 11:02:54,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888019339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:54,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:54,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:02:54,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515776677] [2022-10-17 11:02:54,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:54,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:02:54,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:54,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:02:54,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:02:54,197 INFO L87 Difference]: Start difference. First operand 40 states and 50 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) [2022-10-17 11:02:54,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:54,276 INFO L93 Difference]: Finished difference Result 73 states and 94 transitions. [2022-10-17 11:02:54,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:02:54,277 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 [2022-10-17 11:02:54,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:54,278 INFO L225 Difference]: With dead ends: 73 [2022-10-17 11:02:54,278 INFO L226 Difference]: Without dead ends: 40 [2022-10-17 11:02:54,279 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 [2022-10-17 11:02:54,281 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 76 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:54,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 91 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:02:54,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-17 11:02:54,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-17 11:02:54,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.303030303030303) internal successors, (43), 36 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:02:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2022-10-17 11:02:54,292 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 24 [2022-10-17 11:02:54,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:54,292 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2022-10-17 11:02:54,293 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) [2022-10-17 11:02:54,293 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2022-10-17 11:02:54,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 11:02:54,294 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:54,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:02:54,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 11:02:54,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:02:54,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:54,296 INFO L85 PathProgramCache]: Analyzing trace with hash -416752396, now seen corresponding path program 1 times [2022-10-17 11:02:54,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:54,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151390143] [2022-10-17 11:02:54,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:54,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:54,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:54,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151390143] [2022-10-17 11:02:54,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151390143] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:54,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:54,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:02:54,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843435677] [2022-10-17 11:02:54,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:54,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:02:54,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:54,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:02:54,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:02:54,436 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-10-17 11:02:54,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:54,515 INFO L93 Difference]: Finished difference Result 99 states and 130 transitions. [2022-10-17 11:02:54,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:02:54,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 25 [2022-10-17 11:02:54,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:54,519 INFO L225 Difference]: With dead ends: 99 [2022-10-17 11:02:54,522 INFO L226 Difference]: Without dead ends: 66 [2022-10-17 11:02:54,523 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 [2022-10-17 11:02:54,524 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 24 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:54,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 180 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:02:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-17 11:02:54,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-17 11:02:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 58 states have internal predecessors, (70), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2022-10-17 11:02:54,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2022-10-17 11:02:54,548 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 25 [2022-10-17 11:02:54,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:54,548 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2022-10-17 11:02:54,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-10-17 11:02:54,549 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2022-10-17 11:02:54,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 11:02:54,550 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:54,550 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] [2022-10-17 11:02:54,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 11:02:54,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:02:54,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:54,552 INFO L85 PathProgramCache]: Analyzing trace with hash 414035503, now seen corresponding path program 1 times [2022-10-17 11:02:54,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:54,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176556383] [2022-10-17 11:02:54,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:54,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:54,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:54,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176556383] [2022-10-17 11:02:54,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176556383] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:54,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:54,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:02:54,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358395663] [2022-10-17 11:02:54,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:54,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:02:54,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:54,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:02:54,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:02:54,642 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2022-10-17 11:02:54,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:54,681 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2022-10-17 11:02:54,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:02:54,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 27 [2022-10-17 11:02:54,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:54,683 INFO L225 Difference]: With dead ends: 97 [2022-10-17 11:02:54,685 INFO L226 Difference]: Without dead ends: 63 [2022-10-17 11:02:54,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:02:54,691 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:54,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 43 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:02:54,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-17 11:02:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-17 11:02:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 55 states have internal predecessors, (64), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 11:02:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2022-10-17 11:02:54,711 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 27 [2022-10-17 11:02:54,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:54,712 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2022-10-17 11:02:54,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2022-10-17 11:02:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2022-10-17 11:02:54,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-17 11:02:54,713 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:54,714 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] [2022-10-17 11:02:54,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 11:02:54,714 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:02:54,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:54,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1118685262, now seen corresponding path program 1 times [2022-10-17 11:02:54,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:54,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355176958] [2022-10-17 11:02:54,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:54,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-17 11:02:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:54,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:54,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:54,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355176958] [2022-10-17 11:02:54,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355176958] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:54,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:54,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:02:54,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457741625] [2022-10-17 11:02:54,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:54,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:02:54,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:54,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:02:54,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:02:54,841 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:02:54,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:54,927 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2022-10-17 11:02:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 11:02:54,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-10-17 11:02:54,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:54,929 INFO L225 Difference]: With dead ends: 68 [2022-10-17 11:02:54,929 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 11:02:54,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:02:54,933 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 41 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:54,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 132 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:02:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 11:02:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 11:02:54,937 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) [2022-10-17 11:02:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 11:02:54,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-10-17 11:02:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:54,938 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 11:02:54,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:02:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 11:02:54,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 11:02:54,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 11:02:54,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 11:02:54,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 11:02:55,378 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 484 495) the Hoare annotation is: true [2022-10-17 11:02:55,378 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 484 495) no Hoare annotation was computed. [2022-10-17 11:02:55,378 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 484 495) no Hoare annotation was computed. [2022-10-17 11:02:55,379 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 772 801) no Hoare annotation was computed. [2022-10-17 11:02:55,379 INFO L902 garLoopResultBuilder]: At program point L797(lines 772 801) the Hoare annotation is: true [2022-10-17 11:02:55,379 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 772 801) the Hoare annotation is: true [2022-10-17 11:02:55,379 INFO L899 garLoopResultBuilder]: For program point L793(line 793) no Hoare annotation was computed. [2022-10-17 11:02:55,379 INFO L899 garLoopResultBuilder]: For program point L786(lines 786 790) no Hoare annotation was computed. [2022-10-17 11:02:55,379 INFO L902 garLoopResultBuilder]: At program point L786-1(lines 786 790) the Hoare annotation is: true [2022-10-17 11:02:55,379 INFO L899 garLoopResultBuilder]: For program point L783(line 783) no Hoare annotation was computed. [2022-10-17 11:02:55,380 INFO L902 garLoopResultBuilder]: At program point L782-2(lines 782 796) the Hoare annotation is: true [2022-10-17 11:02:55,380 INFO L902 garLoopResultBuilder]: At program point L778(line 778) the Hoare annotation is: true [2022-10-17 11:02:55,380 INFO L899 garLoopResultBuilder]: For program point L778-1(line 778) no Hoare annotation was computed. [2022-10-17 11:02:55,380 INFO L895 garLoopResultBuilder]: At program point L533(lines 528 536) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-10-17 11:02:55,381 INFO L895 garLoopResultBuilder]: At program point L692(lines 687 695) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2022-10-17 11:02:55,381 INFO L899 garLoopResultBuilder]: For program point L622-1(lines 622 628) no Hoare annotation was computed. [2022-10-17 11:02:55,381 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 611 634) no Hoare annotation was computed. [2022-10-17 11:02:55,381 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-10-17 11:02:55,382 INFO L895 garLoopResultBuilder]: At program point L639(lines 635 641) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-10-17 11:02:55,382 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2022-10-17 11:02:55,382 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 448) no Hoare annotation was computed. [2022-10-17 11:02:55,382 INFO L895 garLoopResultBuilder]: At program point L435-1(lines 427 451) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-10-17 11:02:55,383 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2022-10-17 11:02:55,385 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 611 634) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-10-17 11:02:55,385 INFO L895 garLoopResultBuilder]: At program point L464-2(lines 460 471) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0))) [2022-10-17 11:02:55,385 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 611 634) no Hoare annotation was computed. [2022-10-17 11:02:55,386 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 420) no Hoare annotation was computed. [2022-10-17 11:02:55,386 INFO L899 garLoopResultBuilder]: For program point L615-1(lines 614 633) no Hoare annotation was computed. [2022-10-17 11:02:55,386 INFO L895 garLoopResultBuilder]: At program point L421(lines 416 423) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0))) [2022-10-17 11:02:55,386 INFO L895 garLoopResultBuilder]: At program point L766(lines 761 769) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 11:02:55,387 INFO L895 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-10-17 11:02:55,387 INFO L895 garLoopResultBuilder]: At program point L758(lines 754 760) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 11:02:55,387 INFO L899 garLoopResultBuilder]: For program point L853(lines 853 860) no Hoare annotation was computed. [2022-10-17 11:02:55,387 INFO L899 garLoopResultBuilder]: For program point L853-2(lines 853 860) no Hoare annotation was computed. [2022-10-17 11:02:55,387 INFO L895 garLoopResultBuilder]: At program point L593(lines 550 595) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-10-17 11:02:55,387 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 566) no Hoare annotation was computed. [2022-10-17 11:02:55,387 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 560 566) no Hoare annotation was computed. [2022-10-17 11:02:55,388 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 556) no Hoare annotation was computed. [2022-10-17 11:02:55,388 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 11:02:55,388 INFO L902 garLoopResultBuilder]: At program point L862(lines 843 865) the Hoare annotation is: true [2022-10-17 11:02:55,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 11:02:55,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 11:02:55,388 INFO L895 garLoopResultBuilder]: At program point L751(lines 747 753) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 11:02:55,388 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2022-10-17 11:02:55,389 INFO L895 garLoopResultBuilder]: At program point L586-2(lines 580 591) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-10-17 11:02:55,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 11:02:55,389 INFO L895 garLoopResultBuilder]: At program point L830(lines 826 832) 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)) [2022-10-17 11:02:55,389 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 576) no Hoare annotation was computed. [2022-10-17 11:02:55,390 INFO L899 garLoopResultBuilder]: For program point L570-1(lines 570 576) no Hoare annotation was computed. [2022-10-17 11:02:55,390 INFO L902 garLoopResultBuilder]: At program point L599(lines 540 603) the Hoare annotation is: true [2022-10-17 11:02:55,390 INFO L895 garLoopResultBuilder]: At program point L562(line 562) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-10-17 11:02:55,390 INFO L895 garLoopResultBuilder]: At program point L596(lines 549 597) the Hoare annotation is: false [2022-10-17 11:02:55,390 INFO L902 garLoopResultBuilder]: At program point L840(lines 833 842) the Hoare annotation is: true [2022-10-17 11:02:55,390 INFO L899 garLoopResultBuilder]: For program point L551(lines 550 595) no Hoare annotation was computed. [2022-10-17 11:02:55,391 INFO L899 garLoopResultBuilder]: For program point L580(lines 580 591) no Hoare annotation was computed. [2022-10-17 11:02:55,391 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 472 483) no Hoare annotation was computed. [2022-10-17 11:02:55,391 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 472 483) no Hoare annotation was computed. [2022-10-17 11:02:55,391 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 472 483) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-10-17 11:02:55,396 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-17 11:02:55,398 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 11:02:55,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 11:02:55 BoogieIcfgContainer [2022-10-17 11:02:55,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 11:02:55,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 11:02:55,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 11:02:55,433 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 11:02:55,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:02:53" (3/4) ... [2022-10-17 11:02:55,437 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 11:02:55,445 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-10-17 11:02:55,446 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-10-17 11:02:55,449 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-10-17 11:02:55,450 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-10-17 11:02:55,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-10-17 11:02:55,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-10-17 11:02:55,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-10-17 11:02:55,462 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 11:02:55,462 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 11:02:55,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 11:02:55,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 11:02:55,495 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-10-17 11:02:55,496 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2022-10-17 11:02:55,496 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive [2022-10-17 11:02:55,497 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel [2022-10-17 11:02:55,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) && (((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) [2022-10-17 11:02:55,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) && (((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) [2022-10-17 11:02:55,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-10-17 11:02:55,517 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 11:02:55,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 11:02:55,518 INFO L158 Benchmark]: Toolchain (without parser) took 3647.83ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 51.5MB in the beginning and 46.3MB in the end (delta: 5.2MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2022-10-17 11:02:55,518 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:02:55,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.79ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 51.3MB in the beginning and 94.1MB in the end (delta: -42.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 11:02:55,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.19ms. Allocated memory is still 127.9MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:02:55,519 INFO L158 Benchmark]: Boogie Preprocessor took 57.56ms. Allocated memory is still 127.9MB. Free memory was 92.0MB in the beginning and 90.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:02:55,520 INFO L158 Benchmark]: RCFGBuilder took 446.48ms. Allocated memory is still 127.9MB. Free memory was 90.3MB in the beginning and 74.4MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 11:02:55,520 INFO L158 Benchmark]: TraceAbstraction took 2328.70ms. Allocated memory is still 127.9MB. Free memory was 73.9MB in the beginning and 50.5MB in the end (delta: 23.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2022-10-17 11:02:55,521 INFO L158 Benchmark]: Witness Printer took 84.14ms. Allocated memory is still 127.9MB. Free memory was 50.5MB in the beginning and 46.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 11:02:55,523 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 92.3MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.79ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 51.3MB in the beginning and 94.1MB in the end (delta: -42.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.19ms. Allocated memory is still 127.9MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.56ms. Allocated memory is still 127.9MB. Free memory was 92.0MB in the beginning and 90.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.48ms. Allocated memory is still 127.9MB. Free memory was 90.3MB in the beginning and 74.4MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2328.70ms. Allocated memory is still 127.9MB. Free memory was 73.9MB in the beginning and 50.5MB in the end (delta: 23.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * Witness Printer took 84.14ms. Allocated memory is still 127.9MB. Free memory was 50.5MB in the beginning and 46.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 420]: 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 5 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 599 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 305 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 294 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 104 PreInvPairs, 124 NumberOfFragments, 269 HoareAnnotationTreeSize, 104 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 26 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 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: 772]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) && (((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 833]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 761]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) && (((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive - InvariantResult [Line: 843]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: (((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 754]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 782]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 460]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 == systemActive) - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-10-17 11:02:55,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc9c5cd-2ef3-41ea-8000-2f56f387ffcc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE