./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 86fd3f5568a14080e9383b358193a040777497b13f7355a03ef8d73bf4678822 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 22:59:05,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 22:59:05,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 22:59:05,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 22:59:05,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 22:59:05,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 22:59:05,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 22:59:05,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 22:59:05,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 22:59:05,270 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 22:59:05,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 22:59:05,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 22:59:05,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 22:59:05,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 22:59:05,270 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 22:59:05,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 22:59:05,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 22:59:05,272 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:59:05,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 22:59:05,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:59:05,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 22:59:05,273 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 86fd3f5568a14080e9383b358193a040777497b13f7355a03ef8d73bf4678822 [2024-12-01 22:59:05,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 22:59:05,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 22:59:05,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 22:59:05,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 22:59:05,488 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 22:59:05,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c [2024-12-01 22:59:08,117 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/data/ce9b7cda4/a2ba0a56062440d0824ec5c1d957e5dc/FLAG4b78730d7 [2024-12-01 22:59:08,310 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 22:59:08,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c [2024-12-01 22:59:08,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/data/ce9b7cda4/a2ba0a56062440d0824ec5c1d957e5dc/FLAG4b78730d7 [2024-12-01 22:59:08,661 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/data/ce9b7cda4/a2ba0a56062440d0824ec5c1d957e5dc [2024-12-01 22:59:08,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 22:59:08,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 22:59:08,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 22:59:08,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 22:59:08,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 22:59:08,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6e10a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08, skipping insertion in model container [2024-12-01 22:59:08,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 22:59:08,801 WARN L250 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_7232b80c-5aaa-40b1-9b74-e056ac20021c/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c[2311,2324] [2024-12-01 22:59:08,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 22:59:08,811 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 22:59:08,827 WARN L250 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_7232b80c-5aaa-40b1-9b74-e056ac20021c/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c[2311,2324] [2024-12-01 22:59:08,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 22:59:08,840 INFO L204 MainTranslator]: Completed translation [2024-12-01 22:59:08,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08 WrapperNode [2024-12-01 22:59:08,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 22:59:08,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 22:59:08,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 22:59:08,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 22:59:08,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,865 INFO L138 Inliner]: procedures = 21, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2024-12-01 22:59:08,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 22:59:08,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 22:59:08,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 22:59:08,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 22:59:08,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,883 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-01 22:59:08,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,888 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 22:59:08,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 22:59:08,893 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 22:59:08,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 22:59:08,894 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (1/1) ... [2024-12-01 22:59:08,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:59:08,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:08,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 22:59:08,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 22:59:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 22:59:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-01 22:59:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-01 22:59:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-01 22:59:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-01 22:59:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-01 22:59:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-01 22:59:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 22:59:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 22:59:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 22:59:08,952 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-01 22:59:09,031 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 22:59:09,032 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 22:59:09,160 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-01 22:59:09,160 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 22:59:09,266 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 22:59:09,267 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-01 22:59:09,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:59:09 BoogieIcfgContainer [2024-12-01 22:59:09,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 22:59:09,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 22:59:09,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 22:59:09,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 22:59:09,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:59:08" (1/3) ... [2024-12-01 22:59:09,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534a4a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:59:09, skipping insertion in model container [2024-12-01 22:59:09,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:59:08" (2/3) ... [2024-12-01 22:59:09,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534a4a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:59:09, skipping insertion in model container [2024-12-01 22:59:09,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:59:09" (3/3) ... [2024-12-01 22:59:09,276 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2024-12-01 22:59:09,290 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 22:59:09,291 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-sre-trans.wvr.c that has 4 procedures, 20 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-01 22:59:09,292 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-01 22:59:09,332 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-01 22:59:09,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 59 flow [2024-12-01 22:59:09,391 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-12-01 22:59:09,393 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-01 22:59:09,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-12-01 22:59:09,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 19 transitions, 59 flow [2024-12-01 22:59:09,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 15 transitions, 48 flow [2024-12-01 22:59:09,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 22:59:09,416 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@56a9521c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 22:59:09,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-01 22:59:09,425 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 22:59:09,425 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-12-01 22:59:09,425 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-01 22:59:09,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:09,426 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:09,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-01 22:59:09,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1250837262, now seen corresponding path program 1 times [2024-12-01 22:59:09,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:09,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016394385] [2024-12-01 22:59:09,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:09,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:59:09,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:09,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016394385] [2024-12-01 22:59:09,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016394385] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:09,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:09,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 22:59:09,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164803038] [2024-12-01 22:59:09,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:09,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:59:09,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:10,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:59:10,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 22:59:10,012 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-12-01 22:59:10,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 15 transitions, 48 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-12-01 22:59:10,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:10,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-12-01 22:59:10,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:10,201 INFO L124 PetriNetUnfolderBase]: 32/85 cut-off events. [2024-12-01 22:59:10,201 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-12-01 22:59:10,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 85 events. 32/85 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 230 event pairs, 1 based on Foata normal form. 1/86 useless extension candidates. Maximal degree in co-relation 145. Up to 34 conditions per place. [2024-12-01 22:59:10,204 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 26 selfloop transitions, 6 changer transitions 5/38 dead transitions. [2024-12-01 22:59:10,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 198 flow [2024-12-01 22:59:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 22:59:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 22:59:10,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2024-12-01 22:59:10,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-12-01 22:59:10,215 INFO L175 Difference]: Start difference. First operand has 25 places, 15 transitions, 48 flow. Second operand 6 states and 62 transitions. [2024-12-01 22:59:10,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 198 flow [2024-12-01 22:59:10,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 38 transitions, 166 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-12-01 22:59:10,222 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 69 flow [2024-12-01 22:59:10,225 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-12-01 22:59:10,228 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2024-12-01 22:59:10,228 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 69 flow [2024-12-01 22:59:10,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-12-01 22:59:10,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:10,228 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:10,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 22:59:10,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-01 22:59:10,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:10,229 INFO L85 PathProgramCache]: Analyzing trace with hash -767751560, now seen corresponding path program 2 times [2024-12-01 22:59:10,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:10,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854899903] [2024-12-01 22:59:10,230 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 22:59:10,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:10,259 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 22:59:10,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 22:59:10,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:59:10,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:10,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854899903] [2024-12-01 22:59:10,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854899903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:10,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:10,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 22:59:10,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499203815] [2024-12-01 22:59:10,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:10,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:10,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:10,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:10,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:59:10,510 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-12-01 22:59:10,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-12-01 22:59:10,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:10,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-12-01 22:59:10,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:10,650 INFO L124 PetriNetUnfolderBase]: 32/91 cut-off events. [2024-12-01 22:59:10,650 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-12-01 22:59:10,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 91 events. 32/91 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 281 event pairs, 4 based on Foata normal form. 1/92 useless extension candidates. Maximal degree in co-relation 248. Up to 46 conditions per place. [2024-12-01 22:59:10,651 INFO L140 encePairwiseOnDemand]: 15/19 looper letters, 19 selfloop transitions, 5 changer transitions 12/37 dead transitions. [2024-12-01 22:59:10,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 195 flow [2024-12-01 22:59:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 22:59:10,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-01 22:59:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2024-12-01 22:59:10,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2024-12-01 22:59:10,652 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 69 flow. Second operand 5 states and 54 transitions. [2024-12-01 22:59:10,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 195 flow [2024-12-01 22:59:10,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 193 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-12-01 22:59:10,654 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 74 flow [2024-12-01 22:59:10,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2024-12-01 22:59:10,655 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2024-12-01 22:59:10,655 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 74 flow [2024-12-01 22:59:10,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-12-01 22:59:10,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:10,656 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:10,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 22:59:10,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-01 22:59:10,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:10,657 INFO L85 PathProgramCache]: Analyzing trace with hash -113534156, now seen corresponding path program 3 times [2024-12-01 22:59:10,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:10,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866739750] [2024-12-01 22:59:10,657 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 22:59:10,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:10,679 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-01 22:59:10,679 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 22:59:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:59:10,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:10,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866739750] [2024-12-01 22:59:10,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866739750] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:10,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:10,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 22:59:10,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921591872] [2024-12-01 22:59:10,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:10,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:59:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:10,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:59:10,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 22:59:10,951 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-12-01 22:59:10,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-12-01 22:59:10,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:10,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-12-01 22:59:10,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:11,206 INFO L124 PetriNetUnfolderBase]: 14/47 cut-off events. [2024-12-01 22:59:11,206 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-12-01 22:59:11,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 47 events. 14/47 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 91 event pairs, 1 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 137. Up to 16 conditions per place. [2024-12-01 22:59:11,207 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 16 selfloop transitions, 4 changer transitions 8/29 dead transitions. [2024-12-01 22:59:11,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 159 flow [2024-12-01 22:59:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 22:59:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 22:59:11,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2024-12-01 22:59:11,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2024-12-01 22:59:11,209 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 74 flow. Second operand 6 states and 51 transitions. [2024-12-01 22:59:11,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 159 flow [2024-12-01 22:59:11,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 147 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-12-01 22:59:11,211 INFO L231 Difference]: Finished difference. Result has 32 places, 17 transitions, 70 flow [2024-12-01 22:59:11,212 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=70, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2024-12-01 22:59:11,212 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 7 predicate places. [2024-12-01 22:59:11,212 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 70 flow [2024-12-01 22:59:11,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-12-01 22:59:11,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:11,213 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:11,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 22:59:11,213 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-01 22:59:11,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:11,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1604214904, now seen corresponding path program 4 times [2024-12-01 22:59:11,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:11,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153846928] [2024-12-01 22:59:11,214 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 22:59:11,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:11,233 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 22:59:11,233 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 22:59:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:59:11,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:11,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153846928] [2024-12-01 22:59:11,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153846928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:11,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:11,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 22:59:11,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295662959] [2024-12-01 22:59:11,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:11,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:59:11,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:11,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:59:11,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 22:59:11,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-12-01 22:59:11,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-12-01 22:59:11,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:11,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-12-01 22:59:11,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:11,503 INFO L124 PetriNetUnfolderBase]: 8/28 cut-off events. [2024-12-01 22:59:11,503 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-12-01 22:59:11,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 28 events. 8/28 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 1 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 92. Up to 15 conditions per place. [2024-12-01 22:59:11,504 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-12-01 22:59:11,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 18 transitions, 107 flow [2024-12-01 22:59:11,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:11,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2024-12-01 22:59:11,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4605263157894737 [2024-12-01 22:59:11,506 INFO L175 Difference]: Start difference. First operand has 32 places, 17 transitions, 70 flow. Second operand 4 states and 35 transitions. [2024-12-01 22:59:11,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 18 transitions, 107 flow [2024-12-01 22:59:11,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 91 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-12-01 22:59:11,507 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-12-01 22:59:11,507 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2024-12-01 22:59:11,508 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2024-12-01 22:59:11,508 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-12-01 22:59:11,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-12-01 22:59:11,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-12-01 22:59:11,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-12-01 22:59:11,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-12-01 22:59:11,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-12-01 22:59:11,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 22:59:11,511 INFO L422 BasicCegarLoop]: Path program histogram: [4] [2024-12-01 22:59:11,514 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-01 22:59:11,514 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 22:59:11,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:59:11 BasicIcfg [2024-12-01 22:59:11,519 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 22:59:11,520 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 22:59:11,520 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 22:59:11,520 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 22:59:11,521 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:59:09" (3/4) ... [2024-12-01 22:59:11,523 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-01 22:59:11,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-12-01 22:59:11,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-12-01 22:59:11,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-12-01 22:59:11,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2024-12-01 22:59:11,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-01 22:59:11,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-01 22:59:11,530 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-01 22:59:11,593 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-01 22:59:11,593 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-01 22:59:11,593 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 22:59:11,594 INFO L158 Benchmark]: Toolchain (without parser) took 2930.45ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 40.9MB in the end (delta: 76.9MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2024-12-01 22:59:11,594 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 22:59:11,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.42ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 106.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 22:59:11,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.09ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 104.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 22:59:11,595 INFO L158 Benchmark]: Boogie Preprocessor took 26.78ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.5MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 22:59:11,595 INFO L158 Benchmark]: RCFGBuilder took 373.81ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 80.7MB in the end (delta: 22.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 22:59:11,595 INFO L158 Benchmark]: TraceAbstraction took 2250.03ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 46.0MB in the end (delta: 33.9MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2024-12-01 22:59:11,596 INFO L158 Benchmark]: Witness Printer took 73.15ms. Allocated memory is still 142.6MB. Free memory was 44.7MB in the beginning and 40.9MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 22:59:11,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.42ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 106.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.09ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 104.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.78ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.5MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 373.81ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 80.7MB in the end (delta: 22.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2250.03ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 46.0MB in the end (delta: 33.9MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * Witness Printer took 73.15ms. Allocated memory is still 142.6MB. Free memory was 44.7MB in the beginning and 40.9MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 76]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 29 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 196 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 196 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=2, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-01 22:59:11,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7232b80c-5aaa-40b1-9b74-e056ac20021c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE