./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX --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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:23:25,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:23:25,953 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:23:25,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:23:25,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:23:25,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:23:25,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:23:25,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:23:25,982 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:23:25,982 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:23:25,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:23:25,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:23:25,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:23:25,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:23:25,985 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:23:25,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:23:25,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:23:25,986 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:23:25,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:23:25,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:23:25,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:23:25,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:23:25,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:23:25,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:23:25,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:23:25,989 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:23:25,989 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:23:25,989 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:23:25,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:23:25,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:23:25,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:23:25,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:23:25,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:23:25,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:23:25,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:23:25,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:23:25,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:23:25,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:23:25,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:23:25,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:23:25,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:23:26,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:23:26,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:23:26,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:23:26,001 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_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2024-11-08 16:23:26,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:23:26,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:23:26,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:23:26,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:23:26,350 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:23:26,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c Unable to find full path for "g++" [2024-11-08 16:23:28,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:23:28,582 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:23:28,584 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2024-11-08 16:23:28,596 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/data/5cfc23ad3/d584e0aeed1f475f9595b0a34ca63e66/FLAG5ab41e4f7 [2024-11-08 16:23:28,612 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/data/5cfc23ad3/d584e0aeed1f475f9595b0a34ca63e66 [2024-11-08 16:23:28,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:23:28,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:23:28,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:23:28,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:23:28,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:23:28,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:23:28" (1/1) ... [2024-11-08 16:23:28,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2baad156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:28, skipping insertion in model container [2024-11-08 16:23:28,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:23:28" (1/1) ... [2024-11-08 16:23:28,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:23:28,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:23:28,982 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:23:29,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:23:29,063 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:23:29,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29 WrapperNode [2024-11-08 16:23:29,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:23:29,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:23:29,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:23:29,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:23:29,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,151 INFO L138 Inliner]: procedures = 25, calls = 74, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 487 [2024-11-08 16:23:29,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:23:29,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:23:29,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:23:29,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:23:29,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,187 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-08 16:23:29,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:23:29,228 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:23:29,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:23:29,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:23:29,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (1/1) ... [2024-11-08 16:23:29,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:23:29,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:23:29,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:23:29,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:23:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:23:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 16:23:29,309 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 16:23:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 16:23:29,309 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 16:23:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 16:23:29,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 16:23:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-08 16:23:29,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-08 16:23:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:23:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:23:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:23:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:23:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 16:23:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 16:23:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:23:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:23:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:23:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:23:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:23:29,316 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:23:29,455 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:23:29,457 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:23:30,395 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:23:30,395 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:23:30,977 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:23:30,977 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-08 16:23:30,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:23:30 BoogieIcfgContainer [2024-11-08 16:23:30,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:23:30,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:23:30,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:23:30,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:23:30,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:23:28" (1/3) ... [2024-11-08 16:23:30,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59556d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:23:30, skipping insertion in model container [2024-11-08 16:23:30,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:23:29" (2/3) ... [2024-11-08 16:23:30,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59556d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:23:30, skipping insertion in model container [2024-11-08 16:23:30,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:23:30" (3/3) ... [2024-11-08 16:23:30,990 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2024-11-08 16:23:31,011 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:23:31,011 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-11-08 16:23:31,011 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:23:31,112 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 16:23:31,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 134 transitions, 296 flow [2024-11-08 16:23:31,243 INFO L124 PetriNetUnfolderBase]: 28/130 cut-off events. [2024-11-08 16:23:31,244 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 16:23:31,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 130 events. 28/130 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 413 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 114. Up to 8 conditions per place. [2024-11-08 16:23:31,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 134 transitions, 296 flow [2024-11-08 16:23:31,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 128 transitions, 277 flow [2024-11-08 16:23:31,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:23:31,283 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;@35039950, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:23:31,283 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-08 16:23:31,288 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:23:31,288 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 16:23:31,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:23:31,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:23:31,289 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 16:23:31,289 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-08 16:23:31,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:23:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash 44633682, now seen corresponding path program 1 times [2024-11-08 16:23:31,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:23:31,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002326015] [2024-11-08 16:23:31,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:23:31,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:23:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:23:31,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:23:31,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:23:31,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002326015] [2024-11-08 16:23:31,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002326015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:23:31,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:23:31,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:23:31,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730763501] [2024-11-08 16:23:31,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:23:31,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:23:31,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:23:31,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:23:31,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:23:31,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 134 [2024-11-08 16:23:31,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 128 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-11-08 16:23:31,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:23:31,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 134 [2024-11-08 16:23:31,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:23:39,512 INFO L124 PetriNetUnfolderBase]: 40120/53196 cut-off events. [2024-11-08 16:23:39,512 INFO L125 PetriNetUnfolderBase]: For 1373/1373 co-relation queries the response was YES. [2024-11-08 16:23:39,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102925 conditions, 53196 events. 40120/53196 cut-off events. For 1373/1373 co-relation queries the response was YES. Maximal size of possible extension queue 3574. Compared 339630 event pairs, 26584 based on Foata normal form. 4/33270 useless extension candidates. Maximal degree in co-relation 99028. Up to 48058 conditions per place. [2024-11-08 16:23:39,938 INFO L140 encePairwiseOnDemand]: 97/134 looper letters, 71 selfloop transitions, 13 changer transitions 0/124 dead transitions. [2024-11-08 16:23:39,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 124 transitions, 437 flow [2024-11-08 16:23:39,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:23:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:23:39,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2024-11-08 16:23:39,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5298507462686567 [2024-11-08 16:23:39,956 INFO L175 Difference]: Start difference. First operand has 113 places, 128 transitions, 277 flow. Second operand 4 states and 284 transitions. [2024-11-08 16:23:39,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 124 transitions, 437 flow [2024-11-08 16:23:40,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 124 transitions, 424 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-08 16:23:40,220 INFO L231 Difference]: Finished difference. Result has 100 places, 124 transitions, 348 flow [2024-11-08 16:23:40,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=348, PETRI_PLACES=100, PETRI_TRANSITIONS=124} [2024-11-08 16:23:40,226 INFO L277 CegarLoopForPetriNet]: 113 programPoint places, -13 predicate places. [2024-11-08 16:23:40,229 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 124 transitions, 348 flow [2024-11-08 16:23:40,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-11-08 16:23:40,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:23:40,230 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 16:23:40,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:23:40,231 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-08 16:23:40,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:23:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1386753903, now seen corresponding path program 1 times [2024-11-08 16:23:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:23:40,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655821216] [2024-11-08 16:23:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:23:40,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:23:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:23:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:23:40,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:23:40,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655821216] [2024-11-08 16:23:40,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655821216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:23:40,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:23:40,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:23:40,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004570368] [2024-11-08 16:23:40,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:23:40,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:23:40,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:23:40,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:23:40,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:23:40,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 134 [2024-11-08 16:23:40,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 124 transitions, 348 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2024-11-08 16:23:40,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:23:40,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 134 [2024-11-08 16:23:40,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:23:46,039 INFO L124 PetriNetUnfolderBase]: 40120/53192 cut-off events. [2024-11-08 16:23:46,039 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2024-11-08 16:23:46,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102470 conditions, 53192 events. 40120/53192 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 3574. Compared 339373 event pairs, 26584 based on Foata normal form. 4/33266 useless extension candidates. Maximal degree in co-relation 102362. Up to 48038 conditions per place. [2024-11-08 16:23:46,435 INFO L140 encePairwiseOnDemand]: 117/134 looper letters, 58 selfloop transitions, 22 changer transitions 0/120 dead transitions. [2024-11-08 16:23:46,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 120 transitions, 492 flow [2024-11-08 16:23:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:23:46,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:23:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 348 transitions. [2024-11-08 16:23:46,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43283582089552236 [2024-11-08 16:23:46,439 INFO L175 Difference]: Start difference. First operand has 100 places, 124 transitions, 348 flow. Second operand 6 states and 348 transitions. [2024-11-08 16:23:46,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 120 transitions, 492 flow [2024-11-08 16:23:46,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 120 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:23:46,444 INFO L231 Difference]: Finished difference. Result has 101 places, 120 transitions, 376 flow [2024-11-08 16:23:46,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=101, PETRI_TRANSITIONS=120} [2024-11-08 16:23:46,446 INFO L277 CegarLoopForPetriNet]: 113 programPoint places, -12 predicate places. [2024-11-08 16:23:46,446 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 120 transitions, 376 flow [2024-11-08 16:23:46,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2024-11-08 16:23:46,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:23:46,447 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 16:23:46,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:23:46,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-08 16:23:46,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:23:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash 39699502, now seen corresponding path program 1 times [2024-11-08 16:23:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:23:46,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353350881] [2024-11-08 16:23:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:23:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:23:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:23:46,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:23:46,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:23:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353350881] [2024-11-08 16:23:46,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353350881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:23:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397176427] [2024-11-08 16:23:46,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:23:46,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:23:46,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:23:46,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:23:46,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:23:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:23:46,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:23:46,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:23:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:23:46,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:23:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:23:46,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397176427] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:23:46,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:23:46,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-08 16:23:46,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708095593] [2024-11-08 16:23:46,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:23:46,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:23:46,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:23:46,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:23:46,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:23:47,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 134 [2024-11-08 16:23:47,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 120 transitions, 376 flow. Second operand has 10 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 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) [2024-11-08 16:23:47,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:23:47,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 134 [2024-11-08 16:23:47,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:23:52,275 INFO L124 PetriNetUnfolderBase]: 40144/53276 cut-off events. [2024-11-08 16:23:52,275 INFO L125 PetriNetUnfolderBase]: For 498/498 co-relation queries the response was YES. [2024-11-08 16:23:52,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102694 conditions, 53276 events. 40144/53276 cut-off events. For 498/498 co-relation queries the response was YES. Maximal size of possible extension queue 3575. Compared 340771 event pairs, 26584 based on Foata normal form. 12/33350 useless extension candidates. Maximal degree in co-relation 102364. Up to 48057 conditions per place. [2024-11-08 16:23:52,885 INFO L140 encePairwiseOnDemand]: 117/134 looper letters, 67 selfloop transitions, 49 changer transitions 0/156 dead transitions. [2024-11-08 16:23:52,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 156 transitions, 842 flow [2024-11-08 16:23:52,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:23:52,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 16:23:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 568 transitions. [2024-11-08 16:23:52,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42388059701492536 [2024-11-08 16:23:52,892 INFO L175 Difference]: Start difference. First operand has 101 places, 120 transitions, 376 flow. Second operand 10 states and 568 transitions. [2024-11-08 16:23:52,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 156 transitions, 842 flow [2024-11-08 16:23:52,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 156 transitions, 734 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-11-08 16:23:52,899 INFO L231 Difference]: Finished difference. Result has 108 places, 156 transitions, 666 flow [2024-11-08 16:23:52,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=666, PETRI_PLACES=108, PETRI_TRANSITIONS=156} [2024-11-08 16:23:52,901 INFO L277 CegarLoopForPetriNet]: 113 programPoint places, -5 predicate places. [2024-11-08 16:23:52,901 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 156 transitions, 666 flow [2024-11-08 16:23:52,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 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) [2024-11-08 16:23:52,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:23:52,902 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:23:52,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:23:53,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8dd7c75-728a-476c-ab30-fa936beafaea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-08 16:23:53,107 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-08 16:23:53,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:23:53,109 INFO L85 PathProgramCache]: Analyzing trace with hash -329543005, now seen corresponding path program 1 times [2024-11-08 16:23:53,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:23:53,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659776472] [2024-11-08 16:23:53,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:23:53,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:23:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:23:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:23:53,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:23:53,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659776472] [2024-11-08 16:23:53,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659776472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:23:53,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:23:53,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:23:53,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983989530] [2024-11-08 16:23:53,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:23:53,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:23:53,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:23:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:23:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:23:53,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 134 [2024-11-08 16:23:53,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 156 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-08 16:23:53,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:23:53,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 134 [2024-11-08 16:23:53,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:24:01,839 INFO L124 PetriNetUnfolderBase]: 68346/91093 cut-off events. [2024-11-08 16:24:01,839 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-08 16:24:02,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175408 conditions, 91093 events. 68346/91093 cut-off events. For 953/953 co-relation queries the response was YES. Maximal size of possible extension queue 5071. Compared 610076 event pairs, 21403 based on Foata normal form. 2337/60307 useless extension candidates. Maximal degree in co-relation 175267. Up to 50735 conditions per place. [2024-11-08 16:24:02,422 INFO L140 encePairwiseOnDemand]: 124/134 looper letters, 150 selfloop transitions, 4 changer transitions 0/198 dead transitions. [2024-11-08 16:24:02,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 198 transitions, 1064 flow [2024-11-08 16:24:02,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:24:02,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:24:02,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2024-11-08 16:24:02,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-08 16:24:02,424 INFO L175 Difference]: Start difference. First operand has 108 places, 156 transitions, 666 flow. Second operand 3 states and 268 transitions. [2024-11-08 16:24:02,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 198 transitions, 1064 flow [2024-11-08 16:24:02,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 198 transitions, 1014 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-11-08 16:24:02,438 INFO L231 Difference]: Finished difference. Result has 109 places, 159 transitions, 652 flow [2024-11-08 16:24:02,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=652, PETRI_PLACES=109, PETRI_TRANSITIONS=159} [2024-11-08 16:24:02,439 INFO L277 CegarLoopForPetriNet]: 113 programPoint places, -4 predicate places. [2024-11-08 16:24:02,439 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 159 transitions, 652 flow [2024-11-08 16:24:02,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-08 16:24:02,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:24:02,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:24:02,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:24:02,440 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-08 16:24:02,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:24:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1625896000, now seen corresponding path program 1 times [2024-11-08 16:24:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:24:02,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905487273] [2024-11-08 16:24:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:24:02,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:24:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:24:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:24:02,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:24:02,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905487273] [2024-11-08 16:24:02,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905487273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:24:02,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:24:02,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:24:02,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826304093] [2024-11-08 16:24:02,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:24:02,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:24:02,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:24:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:24:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:24:02,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 134 [2024-11-08 16:24:02,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 159 transitions, 652 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 16:24:02,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:24:02,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 134 [2024-11-08 16:24:02,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand