./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:53,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:53,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:06:53,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:53,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:53,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:53,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:53,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:53,558 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:53,559 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:53,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:53,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:53,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:53,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:53,562 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:53,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:53,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:53,565 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:53,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:53,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:53,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:53,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:53,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:53,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:53,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:53,570 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:06:53,571 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:53,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:53,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:53,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:53,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:53,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:53,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:53,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:53,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:53,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:53,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:53,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:53,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:53,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:53,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:53,579 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:53,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:53,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:53,580 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_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e [2024-10-31 22:06:53,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:53,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:53,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:53,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:53,982 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:53,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i Unable to find full path for "g++" [2024-10-31 22:06:56,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:56,629 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:56,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i [2024-10-31 22:06:56,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/data/abf4ed6cb/85e0f6918ad9473cb3a53d0d7b0795ba/FLAG66ab718a7 [2024-10-31 22:06:56,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/data/abf4ed6cb/85e0f6918ad9473cb3a53d0d7b0795ba [2024-10-31 22:06:56,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:56,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:56,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:56,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:56,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:56,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b131f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56, skipping insertion in model container [2024-10-31 22:06:56,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,985 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:57,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:57,747 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:57,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:57,915 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:57,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57 WrapperNode [2024-10-31 22:06:57,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:57,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:57,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:57,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:57,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:57,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,023 INFO L138 Inliner]: procedures = 176, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2024-10-31 22:06:58,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:58,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:58,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:58,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:58,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,057 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,107 INFO L175 MemorySlicer]: Split 24 memory accesses to 2 slices as follows [2, 22]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 9 writes are split as follows [0, 9]. [2024-10-31 22:06:58,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:58,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:58,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:58,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:58,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (1/1) ... [2024-10-31 22:06:58,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:58,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:58,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:06:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:06:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:06:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:06:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:06:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:06:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:06:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:06:58,261 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:06:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:06:58,261 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:06:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:06:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:06:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:58,267 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:58,513 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:58,517 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:59,315 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:59,315 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:00,053 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:00,053 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:07:00,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:00 BoogieIcfgContainer [2024-10-31 22:07:00,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:00,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:07:00,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:07:00,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:07:00,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:56" (1/3) ... [2024-10-31 22:07:00,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9a7c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:00, skipping insertion in model container [2024-10-31 22:07:00,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:57" (2/3) ... [2024-10-31 22:07:00,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9a7c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:00, skipping insertion in model container [2024-10-31 22:07:00,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:00" (3/3) ... [2024-10-31 22:07:00,075 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_rmo.oepc.i [2024-10-31 22:07:00,103 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:07:00,103 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-31 22:07:00,103 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:07:00,197 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:07:00,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 112 flow [2024-10-31 22:07:00,296 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2024-10-31 22:07:00,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:00,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 120 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-31 22:07:00,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 112 flow [2024-10-31 22:07:00,305 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 44 transitions, 100 flow [2024-10-31 22:07:00,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:07:00,333 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36f3d42a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:07:00,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-31 22:07:00,345 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:07:00,346 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-31 22:07:00,346 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:00,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:00,347 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:00,348 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:07:00,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:00,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1715066046, now seen corresponding path program 1 times [2024-10-31 22:07:00,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:00,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84815609] [2024-10-31 22:07:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:00,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:00,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84815609] [2024-10-31 22:07:00,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84815609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:00,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:00,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:07:00,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716779891] [2024-10-31 22:07:00,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:00,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:00,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:00,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:00,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:01,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-31 22:07:01,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:01,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:01,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-31 22:07:01,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:08,611 INFO L124 PetriNetUnfolderBase]: 22357/29871 cut-off events. [2024-10-31 22:07:08,612 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2024-10-31 22:07:08,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60085 conditions, 29871 events. 22357/29871 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 2319. Compared 194469 event pairs, 9631 based on Foata normal form. 0/21634 useless extension candidates. Maximal degree in co-relation 60073. Up to 29519 conditions per place. [2024-10-31 22:07:08,920 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 49 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-10-31 22:07:08,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 257 flow [2024-10-31 22:07:08,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:08,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-10-31 22:07:08,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-10-31 22:07:08,942 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 100 flow. Second operand 3 states and 104 transitions. [2024-10-31 22:07:08,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 257 flow [2024-10-31 22:07:08,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 64 transitions, 250 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:07:08,955 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 143 flow [2024-10-31 22:07:08,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-10-31 22:07:08,964 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-31 22:07:08,966 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 143 flow [2024-10-31 22:07:08,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:08,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:08,967 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:08,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:07:08,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:07:08,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:08,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1876324316, now seen corresponding path program 1 times [2024-10-31 22:07:08,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:08,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84160680] [2024-10-31 22:07:08,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:08,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:09,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:09,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84160680] [2024-10-31 22:07:09,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84160680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:09,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:09,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:09,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522532105] [2024-10-31 22:07:09,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:09,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:07:09,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:09,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:09,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:09,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-31 22:07:09,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:09,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:09,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-31 22:07:09,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:14,084 INFO L124 PetriNetUnfolderBase]: 11899/16021 cut-off events. [2024-10-31 22:07:14,084 INFO L125 PetriNetUnfolderBase]: For 1258/1258 co-relation queries the response was YES. [2024-10-31 22:07:14,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38236 conditions, 16021 events. 11899/16021 cut-off events. For 1258/1258 co-relation queries the response was YES. Maximal size of possible extension queue 1115. Compared 97138 event pairs, 4335 based on Foata normal form. 0/13288 useless extension candidates. Maximal degree in co-relation 38225. Up to 15668 conditions per place. [2024-10-31 22:07:14,255 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 45 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2024-10-31 22:07:14,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 60 transitions, 265 flow [2024-10-31 22:07:14,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:07:14,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-10-31 22:07:14,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5729166666666666 [2024-10-31 22:07:14,259 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 143 flow. Second operand 4 states and 110 transitions. [2024-10-31 22:07:14,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 60 transitions, 265 flow [2024-10-31 22:07:14,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:07:14,263 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 132 flow [2024-10-31 22:07:14,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-10-31 22:07:14,266 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-10-31 22:07:14,267 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 132 flow [2024-10-31 22:07:14,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:14,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:14,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:14,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:07:14,270 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:07:14,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1876324315, now seen corresponding path program 1 times [2024-10-31 22:07:14,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:14,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126269133] [2024-10-31 22:07:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:14,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:14,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126269133] [2024-10-31 22:07:14,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126269133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:14,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:14,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:14,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560876508] [2024-10-31 22:07:14,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:14,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:07:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:14,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:14,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-31 22:07:14,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:14,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:14,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-31 22:07:14,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:16,973 INFO L124 PetriNetUnfolderBase]: 8177/11163 cut-off events. [2024-10-31 22:07:16,974 INFO L125 PetriNetUnfolderBase]: For 1556/1556 co-relation queries the response was YES. [2024-10-31 22:07:17,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26069 conditions, 11163 events. 8177/11163 cut-off events. For 1556/1556 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 64055 event pairs, 1407 based on Foata normal form. 0/9998 useless extension candidates. Maximal degree in co-relation 26057. Up to 9081 conditions per place. [2024-10-31 22:07:17,087 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 63 selfloop transitions, 9 changer transitions 0/82 dead transitions. [2024-10-31 22:07:17,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 370 flow [2024-10-31 22:07:17,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:07:17,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-10-31 22:07:17,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-10-31 22:07:17,094 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 132 flow. Second operand 4 states and 132 transitions. [2024-10-31 22:07:17,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 370 flow [2024-10-31 22:07:17,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 82 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:17,097 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 184 flow [2024-10-31 22:07:17,098 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-10-31 22:07:17,098 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-31 22:07:17,100 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 184 flow [2024-10-31 22:07:17,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:17,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:17,100 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:17,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:07:17,101 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:07:17,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1062023740, now seen corresponding path program 1 times [2024-10-31 22:07:17,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:17,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146564620] [2024-10-31 22:07:17,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:17,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:17,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:17,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:17,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146564620] [2024-10-31 22:07:17,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146564620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:17,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:17,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:07:17,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86159299] [2024-10-31 22:07:17,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:17,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:07:17,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:17,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:07:17,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:07:17,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-31 22:07:17,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:17,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:17,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-31 22:07:17,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:18,703 INFO L124 PetriNetUnfolderBase]: 5885/8055 cut-off events. [2024-10-31 22:07:18,703 INFO L125 PetriNetUnfolderBase]: For 3906/3906 co-relation queries the response was YES. [2024-10-31 22:07:18,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21406 conditions, 8055 events. 5885/8055 cut-off events. For 3906/3906 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 44112 event pairs, 343 based on Foata normal form. 0/7850 useless extension candidates. Maximal degree in co-relation 21393. Up to 3065 conditions per place. [2024-10-31 22:07:18,771 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 75 selfloop transitions, 13 changer transitions 4/102 dead transitions. [2024-10-31 22:07:18,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 102 transitions, 504 flow [2024-10-31 22:07:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:07:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:07:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-10-31 22:07:18,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-10-31 22:07:18,774 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 184 flow. Second operand 5 states and 166 transitions. [2024-10-31 22:07:18,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 102 transitions, 504 flow [2024-10-31 22:07:18,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 102 transitions, 486 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:18,781 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 208 flow [2024-10-31 22:07:18,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-10-31 22:07:18,783 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2024-10-31 22:07:18,783 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 208 flow [2024-10-31 22:07:18,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:18,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:18,784 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:18,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:07:18,784 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:07:18,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:18,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2024459696, now seen corresponding path program 1 times [2024-10-31 22:07:18,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:18,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887713299] [2024-10-31 22:07:18,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:18,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:19,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:19,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:19,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887713299] [2024-10-31 22:07:19,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887713299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:19,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:19,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:07:19,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777040426] [2024-10-31 22:07:19,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:19,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:07:19,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:19,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:07:19,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:07:19,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-31 22:07:19,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:19,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:19,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-31 22:07:19,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:20,875 INFO L124 PetriNetUnfolderBase]: 5069/6951 cut-off events. [2024-10-31 22:07:20,875 INFO L125 PetriNetUnfolderBase]: For 7042/7042 co-relation queries the response was YES. [2024-10-31 22:07:20,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19287 conditions, 6951 events. 5069/6951 cut-off events. For 7042/7042 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 38398 event pairs, 199 based on Foata normal form. 192/7130 useless extension candidates. Maximal degree in co-relation 19273. Up to 2908 conditions per place. [2024-10-31 22:07:20,913 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2024-10-31 22:07:20,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 94 transitions, 456 flow [2024-10-31 22:07:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:07:20,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:07:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2024-10-31 22:07:20,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5972222222222222 [2024-10-31 22:07:20,917 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 208 flow. Second operand 6 states and 172 transitions. [2024-10-31 22:07:20,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 94 transitions, 456 flow [2024-10-31 22:07:21,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 94 transitions, 401 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-31 22:07:21,029 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-10-31 22:07:21,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-10-31 22:07:21,034 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-10-31 22:07:21,037 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-10-31 22:07:21,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:21,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-10-31 22:07:21,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-10-31 22:07:21,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-10-31 22:07:21,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-10-31 22:07:21,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-10-31 22:07:21,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-10-31 22:07:21,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-10-31 22:07:21,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-10-31 22:07:21,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2024-10-31 22:07:21,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2024-10-31 22:07:21,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2024-10-31 22:07:21,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2024-10-31 22:07:21,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-10-31 22:07:21,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-10-31 22:07:21,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-10-31 22:07:21,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-10-31 22:07:21,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-10-31 22:07:21,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-10-31 22:07:21,051 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-10-31 22:07:21,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-10-31 22:07:21,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:07:21,053 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-31 22:07:21,059 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:07:21,059 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:07:21,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:07:21 BasicIcfg [2024-10-31 22:07:21,065 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:07:21,066 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:07:21,066 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:07:21,066 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:07:21,067 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:00" (3/4) ... [2024-10-31 22:07:21,070 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:07:21,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-31 22:07:21,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-31 22:07:21,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-31 22:07:21,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-31 22:07:21,093 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2024-10-31 22:07:21,098 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-31 22:07:21,098 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-31 22:07:21,098 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:07:21,224 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:07:21,224 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:07:21,224 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:07:21,225 INFO L158 Benchmark]: Toolchain (without parser) took 24321.13ms. Allocated memory was 161.5MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 126.0MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 420.2MB. Max. memory is 16.1GB. [2024-10-31 22:07:21,226 INFO L158 Benchmark]: CDTParser took 1.60ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 88.0MB in the end (delta: 105.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:21,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1007.69ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 115.6MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:07:21,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.78ms. Allocated memory is still 161.5MB. Free memory was 115.6MB in the beginning and 112.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:21,227 INFO L158 Benchmark]: Boogie Preprocessor took 128.36ms. Allocated memory is still 161.5MB. Free memory was 112.5MB in the beginning and 108.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:07:21,227 INFO L158 Benchmark]: RCFGBuilder took 1900.83ms. Allocated memory was 161.5MB in the beginning and 203.4MB in the end (delta: 41.9MB). Free memory was 108.3MB in the beginning and 130.3MB in the end (delta: -22.0MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2024-10-31 22:07:21,227 INFO L158 Benchmark]: TraceAbstraction took 21002.82ms. Allocated memory was 203.4MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 130.3MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-10-31 22:07:21,228 INFO L158 Benchmark]: Witness Printer took 158.87ms. Allocated memory is still 3.9GB. Free memory was 3.5GB in the beginning and 3.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:07:21,230 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.60ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 88.0MB in the end (delta: 105.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1007.69ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 115.6MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.78ms. Allocated memory is still 161.5MB. Free memory was 115.6MB in the beginning and 112.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 128.36ms. Allocated memory is still 161.5MB. Free memory was 112.5MB in the beginning and 108.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1900.83ms. Allocated memory was 161.5MB in the beginning and 203.4MB in the end (delta: 41.9MB). Free memory was 108.3MB in the beginning and 130.3MB in the end (delta: -22.0MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * TraceAbstraction took 21002.82ms. Allocated memory was 203.4MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 130.3MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 158.87ms. Allocated memory is still 3.9GB. Free memory was 3.5GB in the beginning and 3.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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 9 procedures, 87 locations, 20 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: 20.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 254 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 469 IncrementalHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 2 mSDtfsCounter, 469 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 1.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:07:21,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9997ff0-f1ee-4f18-9464-12a619d58c84/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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