./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/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_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:27,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:27,645 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:22:27,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:27,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:27,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:27,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:27,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:27,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:27,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:27,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:27,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:27,685 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:27,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:27,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:22:27,687 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:22:27,688 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:27,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:22:27,689 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:27,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:22:27,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:27,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:22:27,692 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:22:27,692 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:22:27,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:22:27,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:27,694 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:27,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:27,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:27,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:27,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:27,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:27,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:27,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:22:27,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:27,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:27,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:27,700 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:22:27,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:27,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:27,701 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:27,702 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_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 [2023-11-06 22:22:27,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:28,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:28,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:28,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:28,013 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:28,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2023-11-06 22:22:31,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:31,523 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:31,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2023-11-06 22:22:31,560 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/data/538e25abc/c2c68d31dd2c47ecbf0ad83d45c9ead2/FLAG9405b59b4 [2023-11-06 22:22:31,579 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/data/538e25abc/c2c68d31dd2c47ecbf0ad83d45c9ead2 [2023-11-06 22:22:31,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:31,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:31,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:31,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:31,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:31,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ace844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31, skipping insertion in model container [2023-11-06 22:22:31,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:31,890 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:22:32,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:32,081 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:32,099 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:22:32,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:32,164 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:32,164 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:32,164 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:32,173 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:32,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32 WrapperNode [2023-11-06 22:22:32,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:32,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:32,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:32,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:32,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,229 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 84 [2023-11-06 22:22:32,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:32,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:32,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:32,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:32,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:32,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:32,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:32,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:32,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:32,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:32,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:32,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-06 22:22:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-06 22:22:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:22:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:22:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:22:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:22:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:22:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:22:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:32,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:32,360 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 22:22:32,533 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:32,536 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:32,757 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:32,879 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:32,880 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:22:32,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:32 BoogieIcfgContainer [2023-11-06 22:22:32,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:32,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:22:32,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:22:32,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:22:32,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:31" (1/3) ... [2023-11-06 22:22:32,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744b37a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:32, skipping insertion in model container [2023-11-06 22:22:32,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32" (2/3) ... [2023-11-06 22:22:32,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744b37a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:32, skipping insertion in model container [2023-11-06 22:22:32,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:32" (3/3) ... [2023-11-06 22:22:32,897 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2023-11-06 22:22:32,908 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:22:32,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:22:32,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 22:22:32,919 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:22:32,978 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:22:33,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 61 transitions, 126 flow [2023-11-06 22:22:33,078 INFO L124 PetriNetUnfolderBase]: 2/60 cut-off events. [2023-11-06 22:22:33,078 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:33,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 2/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 40 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2023-11-06 22:22:33,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 61 transitions, 126 flow [2023-11-06 22:22:33,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 48 transitions, 99 flow [2023-11-06 22:22:33,093 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:22:33,106 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 48 transitions, 99 flow [2023-11-06 22:22:33,110 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 48 transitions, 99 flow [2023-11-06 22:22:33,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 48 transitions, 99 flow [2023-11-06 22:22:33,134 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2023-11-06 22:22:33,135 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:33,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 2/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-11-06 22:22:33,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 300 [2023-11-06 22:22:35,449 INFO L134 LiptonReduction]: Checked pairs total: 650 [2023-11-06 22:22:35,449 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-11-06 22:22:35,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:22:35,486 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;@122f9e86, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:22:35,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-06 22:22:35,491 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:22:35,491 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-11-06 22:22:35,492 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:35,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:35,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:22:35,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-06 22:22:35,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:35,504 INFO L85 PathProgramCache]: Analyzing trace with hash 289483, now seen corresponding path program 1 times [2023-11-06 22:22:35,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:35,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523946196] [2023-11-06 22:22:35,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:35,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:35,803 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 22:22:35,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:35,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523946196] [2023-11-06 22:22:35,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523946196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:35,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:35,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:22:35,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424604321] [2023-11-06 22:22:35,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:35,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:22:35,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:35,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:22:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:22:35,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 109 [2023-11-06 22:22:35,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 22:22:35,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:35,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 109 [2023-11-06 22:22:35,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:35,917 INFO L124 PetriNetUnfolderBase]: 10/41 cut-off events. [2023-11-06 22:22:35,918 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:35,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 41 events. 10/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 131 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 71. Up to 18 conditions per place. [2023-11-06 22:22:35,922 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2023-11-06 22:22:35,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 15 transitions, 59 flow [2023-11-06 22:22:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:22:35,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:22:35,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2023-11-06 22:22:35,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5076452599388379 [2023-11-06 22:22:35,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 166 transitions. [2023-11-06 22:22:35,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 166 transitions. [2023-11-06 22:22:35,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:35,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 166 transitions. [2023-11-06 22:22:35,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 22:22:35,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 22:22:35,968 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 22:22:35,970 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 3 states and 166 transitions. [2023-11-06 22:22:35,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 15 transitions, 59 flow [2023-11-06 22:22:35,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:22:35,976 INFO L231 Difference]: Finished difference. Result has 16 places, 11 transitions, 35 flow [2023-11-06 22:22:35,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=35, PETRI_PLACES=16, PETRI_TRANSITIONS=11} [2023-11-06 22:22:35,986 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 0 predicate places. [2023-11-06 22:22:35,986 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 11 transitions, 35 flow [2023-11-06 22:22:35,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 22:22:35,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:35,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:22:35,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:22:35,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-06 22:22:35,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:35,988 INFO L85 PathProgramCache]: Analyzing trace with hash 34302860, now seen corresponding path program 1 times [2023-11-06 22:22:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:35,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621388391] [2023-11-06 22:22:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:35,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:36,194 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 22:22:36,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:36,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621388391] [2023-11-06 22:22:36,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621388391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:36,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:36,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:22:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540507514] [2023-11-06 22:22:36,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:36,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:22:36,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:36,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:22:36,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:22:36,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 109 [2023-11-06 22:22:36,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 11 transitions, 35 flow. Second operand has 5 states, 5 states have (on average 47.2) internal successors, (236), 5 states have internal predecessors, (236), 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 22:22:36,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:36,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 109 [2023-11-06 22:22:36,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:36,278 INFO L124 PetriNetUnfolderBase]: 4/21 cut-off events. [2023-11-06 22:22:36,278 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:22:36,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 21 events. 4/21 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 1 based on Foata normal form. 4/25 useless extension candidates. Maximal degree in co-relation 41. Up to 8 conditions per place. [2023-11-06 22:22:36,279 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 7 selfloop transitions, 3 changer transitions 0/11 dead transitions. [2023-11-06 22:22:36,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 11 transitions, 52 flow [2023-11-06 22:22:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:22:36,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:22:36,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 243 transitions. [2023-11-06 22:22:36,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44587155963302755 [2023-11-06 22:22:36,283 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 243 transitions. [2023-11-06 22:22:36,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 243 transitions. [2023-11-06 22:22:36,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:36,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 243 transitions. [2023-11-06 22:22:36,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 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 22:22:36,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 22:22:36,290 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 22:22:36,290 INFO L175 Difference]: Start difference. First operand has 16 places, 11 transitions, 35 flow. Second operand 5 states and 243 transitions. [2023-11-06 22:22:36,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 11 transitions, 52 flow [2023-11-06 22:22:36,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 11 transitions, 48 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:22:36,291 INFO L231 Difference]: Finished difference. Result has 17 places, 9 transitions, 30 flow [2023-11-06 22:22:36,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=30, PETRI_PLACES=17, PETRI_TRANSITIONS=9} [2023-11-06 22:22:36,293 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2023-11-06 22:22:36,293 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 9 transitions, 30 flow [2023-11-06 22:22:36,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.2) internal successors, (236), 5 states have internal predecessors, (236), 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 22:22:36,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:36,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:22:36,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:22:36,294 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-06 22:22:36,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:36,295 INFO L85 PathProgramCache]: Analyzing trace with hash 34302861, now seen corresponding path program 1 times [2023-11-06 22:22:36,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:36,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806395210] [2023-11-06 22:22:36,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:36,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:36,380 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 22:22:36,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:36,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806395210] [2023-11-06 22:22:36,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806395210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:36,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:36,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:22:36,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898167617] [2023-11-06 22:22:36,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:36,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:22:36,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:36,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:22:36,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:22:36,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 109 [2023-11-06 22:22:36,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 9 transitions, 30 flow. Second operand has 5 states, 5 states have (on average 47.2) internal successors, (236), 5 states have internal predecessors, (236), 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 22:22:36,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:36,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 109 [2023-11-06 22:22:36,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:36,430 INFO L124 PetriNetUnfolderBase]: 3/17 cut-off events. [2023-11-06 22:22:36,430 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:22:36,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 17 events. 3/17 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 27 event pairs, 1 based on Foata normal form. 3/20 useless extension candidates. Maximal degree in co-relation 36. Up to 8 conditions per place. [2023-11-06 22:22:36,431 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-11-06 22:22:36,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 10 transitions, 50 flow [2023-11-06 22:22:36,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:22:36,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:22:36,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 240 transitions. [2023-11-06 22:22:36,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44036697247706424 [2023-11-06 22:22:36,441 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 240 transitions. [2023-11-06 22:22:36,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 240 transitions. [2023-11-06 22:22:36,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:36,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 240 transitions. [2023-11-06 22:22:36,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 22:22:36,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 22:22:36,448 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 22:22:36,448 INFO L175 Difference]: Start difference. First operand has 17 places, 9 transitions, 30 flow. Second operand 5 states and 240 transitions. [2023-11-06 22:22:36,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 10 transitions, 50 flow [2023-11-06 22:22:36,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 10 transitions, 45 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:22:36,449 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-11-06 22:22:36,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=13, 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=17, PETRI_TRANSITIONS=0} [2023-11-06 22:22:36,451 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2023-11-06 22:22:36,452 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-11-06 22:22:36,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.2) internal successors, (236), 5 states have internal predecessors, (236), 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 22:22:36,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-11-06 22:22:36,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-11-06 22:22:36,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-11-06 22:22:36,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-11-06 22:22:36,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-06 22:22:36,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:22:36,465 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 22:22:36,468 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:22:36,469 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:22:36,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:22:36 BasicIcfg [2023-11-06 22:22:36,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:22:36,477 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:22:36,477 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:22:36,478 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:22:36,478 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:32" (3/4) ... [2023-11-06 22:22:36,480 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:22:36,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-11-06 22:22:36,497 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2023-11-06 22:22:36,497 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-06 22:22:36,498 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:22:36,498 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:22:36,581 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:22:36,582 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:22:36,582 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:22:36,583 INFO L158 Benchmark]: Toolchain (without parser) took 4994.75ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 86.9MB in the beginning and 117.2MB in the end (delta: -30.3MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-11-06 22:22:36,583 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:22:36,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.06ms. Allocated memory is still 132.1MB. Free memory was 86.5MB in the beginning and 66.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:22:36,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.73ms. Allocated memory is still 132.1MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:22:36,584 INFO L158 Benchmark]: Boogie Preprocessor took 32.02ms. Allocated memory is still 132.1MB. Free memory was 64.6MB in the beginning and 63.4MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:22:36,585 INFO L158 Benchmark]: RCFGBuilder took 619.53ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 63.0MB in the beginning and 130.4MB in the end (delta: -67.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-06 22:22:36,585 INFO L158 Benchmark]: TraceAbstraction took 3590.45ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 120.3MB in the end (delta: 9.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-11-06 22:22:36,586 INFO L158 Benchmark]: Witness Printer took 104.86ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 117.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:22:36,589 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.06ms. Allocated memory is still 132.1MB. Free memory was 86.5MB in the beginning and 66.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.73ms. Allocated memory is still 132.1MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.02ms. Allocated memory is still 132.1MB. Free memory was 64.6MB in the beginning and 63.4MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 619.53ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 63.0MB in the beginning and 130.4MB in the end (delta: -67.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3590.45ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 120.3MB in the end (delta: 9.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 104.86ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 117.2MB in the end (delta: 3.1MB). 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: 2.3s, 50 PlacesBefore, 16 PlacesAfterwards, 48 TransitionsBefore, 13 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 48 TotalNumberOfCompositions, 650 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 345, independent: 287, independent conditional: 0, independent unconditional: 287, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 174, independent: 156, independent conditional: 0, independent unconditional: 156, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 345, independent: 131, independent conditional: 0, independent unconditional: 131, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 174, unknown conditional: 0, unknown unconditional: 174] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, 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: 722]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 722]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 743]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 743]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 68 locations, 5 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: 3.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 4 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=1, InterpolantAutomatonStates: 13, 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, 0.4s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:22:36,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c9dce-31cc-4c9d-870f-90879fc6fc6e/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