./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP --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 2c45fd7cfbad1c12ff3ef6a6150c824b5f7de404c290f417bc2834c0c8e69422 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:53:25,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:53:25,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 21:53:25,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:53:25,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:53:25,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:53:25,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:53:25,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:53:25,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:53:25,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:53:25,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:53:25,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:53:25,760 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:53:25,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:53:25,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:53:25,763 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:53:25,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:53:25,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:53:25,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:53:25,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:53:25,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:53:25,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:53:25,767 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:53:25,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:53:25,768 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:53:25,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:53:25,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:53:25,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:53:25,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:25,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:53:25,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:53:25,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:53:25,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:53:25,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:53:25,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:53:25,773 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:53:25,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:53:25,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:53:25,774 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:53:25,774 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c45fd7cfbad1c12ff3ef6a6150c824b5f7de404c290f417bc2834c0c8e69422 [2023-11-06 21:53:26,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:53:26,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:53:26,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:53:26,155 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:53:26,156 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:53:26,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2023-11-06 21:53:29,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:53:29,722 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:53:29,723 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2023-11-06 21:53:29,733 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/data/4449ce979/3c48554c200540689d5f113ffb11cb54/FLAG0957fa06d [2023-11-06 21:53:30,032 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/data/4449ce979/3c48554c200540689d5f113ffb11cb54 [2023-11-06 21:53:30,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:53:30,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:53:30,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:30,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:53:30,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:53:30,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1701f828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30, skipping insertion in model container [2023-11-06 21:53:30,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:53:30,266 WARN L240 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_9c300be8-80ca-4ed0-ae73-37264b4b873f/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c[2652,2665] [2023-11-06 21:53:30,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:30,290 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:53:30,322 WARN L240 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_9c300be8-80ca-4ed0-ae73-37264b4b873f/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c[2652,2665] [2023-11-06 21:53:30,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:30,332 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:53:30,332 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:53:30,339 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:53:30,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30 WrapperNode [2023-11-06 21:53:30,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:30,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:30,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:53:30,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:53:30,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,384 INFO L138 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 123 [2023-11-06 21:53:30,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:30,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:53:30,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:53:30,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:53:30,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:53:30,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:53:30,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:53:30,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:53:30,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (1/1) ... [2023-11-06 21:53:30,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:30,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:30,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:53:30,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:53:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:53:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:53:30,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:53:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:53:30,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:53:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:53:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:53:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:53:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:53:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:53:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:53:30,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:53:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:53:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:53:30,496 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:53:30,598 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:53:30,600 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:53:30,861 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:53:30,929 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:53:30,929 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:53:30,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:30 BoogieIcfgContainer [2023-11-06 21:53:30,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:53:30,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:53:30,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:53:30,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:53:30,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:53:30" (1/3) ... [2023-11-06 21:53:30,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a275724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:30, skipping insertion in model container [2023-11-06 21:53:30,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:30" (2/3) ... [2023-11-06 21:53:30,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a275724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:30, skipping insertion in model container [2023-11-06 21:53:30,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:30" (3/3) ... [2023-11-06 21:53:30,943 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2023-11-06 21:53:30,950 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:53:30,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:53:30,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:53:30,960 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:53:31,033 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 21:53:31,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 210 flow [2023-11-06 21:53:31,147 INFO L124 PetriNetUnfolderBase]: 2/96 cut-off events. [2023-11-06 21:53:31,147 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:53:31,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 96 events. 2/96 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-06 21:53:31,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 98 transitions, 210 flow [2023-11-06 21:53:31,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 87 transitions, 186 flow [2023-11-06 21:53:31,163 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:53:31,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 87 transitions, 186 flow [2023-11-06 21:53:31,179 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 87 transitions, 186 flow [2023-11-06 21:53:31,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 87 transitions, 186 flow [2023-11-06 21:53:31,243 INFO L124 PetriNetUnfolderBase]: 2/87 cut-off events. [2023-11-06 21:53:31,244 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:53:31,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 87 events. 2/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-06 21:53:31,246 INFO L119 LiptonReduction]: Number of co-enabled transitions 282 [2023-11-06 21:53:35,188 INFO L134 LiptonReduction]: Checked pairs total: 1536 [2023-11-06 21:53:35,189 INFO L136 LiptonReduction]: Total number of compositions: 82 [2023-11-06 21:53:35,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:53:35,234 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;@2094391c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:53:35,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-06 21:53:35,252 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:53:35,253 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-11-06 21:53:35,253 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:53:35,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:35,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:35,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 21:53:35,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:35,261 INFO L85 PathProgramCache]: Analyzing trace with hash -246910854, now seen corresponding path program 1 times [2023-11-06 21:53:35,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:35,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750558665] [2023-11-06 21:53:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:35,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:35,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750558665] [2023-11-06 21:53:35,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750558665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:35,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:35,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:53:35,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338828437] [2023-11-06 21:53:35,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:35,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:53:35,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:36,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:53:36,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:53:36,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 180 [2023-11-06 21:53:36,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2023-11-06 21:53:36,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:36,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 180 [2023-11-06 21:53:36,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:36,194 INFO L124 PetriNetUnfolderBase]: 97/199 cut-off events. [2023-11-06 21:53:36,194 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-06 21:53:36,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 199 events. 97/199 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 631 event pairs, 78 based on Foata normal form. 1/200 useless extension candidates. Maximal degree in co-relation 352. Up to 144 conditions per place. [2023-11-06 21:53:36,198 INFO L140 encePairwiseOnDemand]: 175/180 looper letters, 21 selfloop transitions, 3 changer transitions 8/32 dead transitions. [2023-11-06 21:53:36,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 32 transitions, 149 flow [2023-11-06 21:53:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:53:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:53:36,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2023-11-06 21:53:36,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2023-11-06 21:53:36,231 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 345 transitions. [2023-11-06 21:53:36,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 345 transitions. [2023-11-06 21:53:36,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:36,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 345 transitions. [2023-11-06 21:53:36,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2023-11-06 21:53:36,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-11-06 21:53:36,254 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-11-06 21:53:36,257 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 48 flow. Second operand 4 states and 345 transitions. [2023-11-06 21:53:36,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 32 transitions, 149 flow [2023-11-06 21:53:36,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 32 transitions, 135 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 21:53:36,264 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 54 flow [2023-11-06 21:53:36,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-11-06 21:53:36,271 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-11-06 21:53:36,271 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 54 flow [2023-11-06 21:53:36,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2023-11-06 21:53:36,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:36,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:36,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:53:36,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 21:53:36,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:36,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1187635642, now seen corresponding path program 2 times [2023-11-06 21:53:36,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:36,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575958880] [2023-11-06 21:53:36,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:36,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:36,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:36,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575958880] [2023-11-06 21:53:36,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575958880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:36,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:36,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:53:36,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098809081] [2023-11-06 21:53:36,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:36,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:53:36,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:36,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:53:36,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:53:36,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 180 [2023-11-06 21:53:36,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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) [2023-11-06 21:53:36,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:36,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 180 [2023-11-06 21:53:36,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:36,635 INFO L124 PetriNetUnfolderBase]: 27/78 cut-off events. [2023-11-06 21:53:36,635 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 21:53:36,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 78 events. 27/78 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 190 event pairs, 6 based on Foata normal form. 4/82 useless extension candidates. Maximal degree in co-relation 103. Up to 36 conditions per place. [2023-11-06 21:53:36,638 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 15 selfloop transitions, 6 changer transitions 6/30 dead transitions. [2023-11-06 21:53:36,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 134 flow [2023-11-06 21:53:36,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:53:36,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:53:36,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2023-11-06 21:53:36,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47 [2023-11-06 21:53:36,643 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2023-11-06 21:53:36,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2023-11-06 21:53:36,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:36,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2023-11-06 21:53:36,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 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) [2023-11-06 21:53:36,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-11-06 21:53:36,655 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-11-06 21:53:36,656 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 54 flow. Second operand 5 states and 423 transitions. [2023-11-06 21:53:36,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 134 flow [2023-11-06 21:53:36,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 30 transitions, 126 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-11-06 21:53:36,660 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 72 flow [2023-11-06 21:53:36,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=5, PETRI_FLOW=72, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-11-06 21:53:36,662 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2023-11-06 21:53:36,663 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 72 flow [2023-11-06 21:53:36,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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) [2023-11-06 21:53:36,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:36,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:36,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:53:36,670 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 21:53:36,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:36,671 INFO L85 PathProgramCache]: Analyzing trace with hash -402364894, now seen corresponding path program 3 times [2023-11-06 21:53:36,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:36,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023069875] [2023-11-06 21:53:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:36,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:36,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:36,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:36,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023069875] [2023-11-06 21:53:36,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023069875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:36,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:36,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:53:36,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754699910] [2023-11-06 21:53:36,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:36,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:53:36,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:36,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:53:36,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:53:36,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 180 [2023-11-06 21:53:36,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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) [2023-11-06 21:53:36,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:36,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 180 [2023-11-06 21:53:36,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:36,860 INFO L124 PetriNetUnfolderBase]: 6/19 cut-off events. [2023-11-06 21:53:36,860 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 21:53:36,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 19 events. 6/19 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 4/23 useless extension candidates. Maximal degree in co-relation 53. Up to 8 conditions per place. [2023-11-06 21:53:36,861 INFO L140 encePairwiseOnDemand]: 176/180 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-11-06 21:53:36,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 58 flow [2023-11-06 21:53:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:53:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:53:36,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 407 transitions. [2023-11-06 21:53:36,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45222222222222225 [2023-11-06 21:53:36,864 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 407 transitions. [2023-11-06 21:53:36,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 407 transitions. [2023-11-06 21:53:36,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:36,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 407 transitions. [2023-11-06 21:53:36,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2023-11-06 21:53:36,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-11-06 21:53:36,870 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-11-06 21:53:36,870 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 72 flow. Second operand 5 states and 407 transitions. [2023-11-06 21:53:36,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 58 flow [2023-11-06 21:53:36,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 51 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-06 21:53:36,871 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-11-06 21:53:36,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-11-06 21:53:36,872 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -7 predicate places. [2023-11-06 21:53:36,872 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-11-06 21:53:36,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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) [2023-11-06 21:53:36,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-06 21:53:36,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-06 21:53:36,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-06 21:53:36,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:53:36,878 INFO L445 BasicCegarLoop]: Path program histogram: [3] [2023-11-06 21:53:36,881 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:53:36,881 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:53:36,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:53:36 BasicIcfg [2023-11-06 21:53:36,886 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:53:36,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:53:36,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:53:36,887 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:53:36,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:30" (3/4) ... [2023-11-06 21:53:36,890 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:53:36,893 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 21:53:36,894 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 21:53:36,899 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-06 21:53:36,900 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 21:53:36,900 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:53:36,900 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:53:36,976 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:53:36,977 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:53:36,977 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:53:36,978 INFO L158 Benchmark]: Toolchain (without parser) took 6937.08ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 99.3MB in the beginning and 118.8MB in the end (delta: -19.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,978 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 132.1MB. Free memory was 107.2MB in the beginning and 107.1MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:36,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.80ms. Allocated memory is still 132.1MB. Free memory was 99.3MB in the beginning and 88.1MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.04ms. Allocated memory is still 132.1MB. Free memory was 88.1MB in the beginning and 86.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,979 INFO L158 Benchmark]: Boogie Preprocessor took 29.56ms. Allocated memory is still 132.1MB. Free memory was 86.1MB in the beginning and 85.1MB in the end (delta: 998.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:36,980 INFO L158 Benchmark]: RCFGBuilder took 516.78ms. Allocated memory is still 132.1MB. Free memory was 85.1MB in the beginning and 67.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,980 INFO L158 Benchmark]: TraceAbstraction took 5951.42ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 67.2MB in the beginning and 123.0MB in the end (delta: -55.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:36,980 INFO L158 Benchmark]: Witness Printer took 90.45ms. Allocated memory is still 159.4MB. Free memory was 123.0MB in the beginning and 118.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 132.1MB. Free memory was 107.2MB in the beginning and 107.1MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.80ms. Allocated memory is still 132.1MB. Free memory was 99.3MB in the beginning and 88.1MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.04ms. Allocated memory is still 132.1MB. Free memory was 88.1MB in the beginning and 86.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.56ms. Allocated memory is still 132.1MB. Free memory was 86.1MB in the beginning and 85.1MB in the end (delta: 998.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 516.78ms. Allocated memory is still 132.1MB. Free memory was 85.1MB in the beginning and 67.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5951.42ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 67.2MB in the beginning and 123.0MB in the end (delta: -55.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 90.45ms. Allocated memory is still 159.4MB. Free memory was 123.0MB in the beginning and 118.8MB 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 92 PlacesBefore, 25 PlacesAfterwards, 87 TransitionsBefore, 18 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 8 FixpointIterations, 62 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 1536 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 775, independent: 633, independent conditional: 0, independent unconditional: 633, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 152, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 775, independent: 491, independent conditional: 0, independent unconditional: 491, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 152, unknown conditional: 0, unknown unconditional: 152] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 102]: 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 5 procedures, 114 locations, 3 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: 5.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 194 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 22 mSDtfsCounter, 194 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be correct! [2023-11-06 21:53:37,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c300be8-80ca-4ed0-ae73-37264b4b873f/bin/uautomizer-verify-WvqO1wxjHP/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