./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:53,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:54,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:22:54,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:54,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:54,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:54,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:54,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:54,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:54,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:54,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:54,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:54,087 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:54,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:54,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:22:54,089 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:22:54,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:54,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:22:54,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:54,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:22:54,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:54,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:22:54,097 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:22:54,097 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:22:54,098 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:22:54,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:54,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:54,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:54,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:54,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:54,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:54,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:54,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:54,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:22:54,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:54,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:54,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:54,103 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:22:54,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:54,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:54,104 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:54,107 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_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2023-11-06 22:22:54,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:54,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:54,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:54,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:54,475 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:54,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2023-11-06 22:22:57,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:57,893 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:57,893 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2023-11-06 22:22:57,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/data/f61b273eb/c6da116bb74641549d45c2b8608fcd92/FLAG39cb7c921 [2023-11-06 22:22:57,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/data/f61b273eb/c6da116bb74641549d45c2b8608fcd92 [2023-11-06 22:22:57,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:57,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:57,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:57,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:57,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:57,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:57" (1/1) ... [2023-11-06 22:22:57,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1e8ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:57, skipping insertion in model container [2023-11-06 22:22:57,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:57" (1/1) ... [2023-11-06 22:22:57,958 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:58,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:58,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:58,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:58,227 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:58,227 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:58,234 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:58,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58 WrapperNode [2023-11-06 22:22:58,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:58,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:58,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:58,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:58,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,293 INFO L138 Inliner]: procedures = 24, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 268 [2023-11-06 22:22:58,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:58,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:58,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:58,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:58,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:58,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:58,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:58,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:58,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:58,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:58,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_066c8c6c-85aa-436a-a602-d87d002c5a12/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:22:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:22:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:22:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:22:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:22:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:22:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-06 22:22:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-06 22:22:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:22:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-06 22:22:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-06 22:22:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:22:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:22:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:22:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:22:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:22:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:22:58,416 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:22:58,556 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:58,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:59,163 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:59,365 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:59,366 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:22:59,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:59 BoogieIcfgContainer [2023-11-06 22:22:59,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:59,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:22:59,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:22:59,383 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:22:59,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:57" (1/3) ... [2023-11-06 22:22:59,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d376d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:59, skipping insertion in model container [2023-11-06 22:22:59,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (2/3) ... [2023-11-06 22:22:59,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d376d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:59, skipping insertion in model container [2023-11-06 22:22:59,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:59" (3/3) ... [2023-11-06 22:22:59,387 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2023-11-06 22:22:59,396 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:22:59,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:22:59,408 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-06 22:22:59,409 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:22:59,523 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-06 22:22:59,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 192 transitions, 419 flow [2023-11-06 22:22:59,666 INFO L124 PetriNetUnfolderBase]: 2/187 cut-off events. [2023-11-06 22:22:59,666 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 22:22:59,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 187 events. 2/187 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 133 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 141. Up to 2 conditions per place. [2023-11-06 22:22:59,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 192 transitions, 419 flow [2023-11-06 22:22:59,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 159 transitions, 345 flow [2023-11-06 22:22:59,684 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:22:59,699 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 159 transitions, 345 flow [2023-11-06 22:22:59,704 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 159 transitions, 345 flow [2023-11-06 22:22:59,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 159 transitions, 345 flow [2023-11-06 22:22:59,797 INFO L124 PetriNetUnfolderBase]: 1/159 cut-off events. [2023-11-06 22:22:59,797 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-06 22:22:59,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 159 events. 1/159 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 141. Up to 2 conditions per place. [2023-11-06 22:22:59,804 INFO L119 LiptonReduction]: Number of co-enabled transitions 4234 [2023-11-06 22:23:07,160 INFO L134 LiptonReduction]: Checked pairs total: 26243 [2023-11-06 22:23:07,161 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-11-06 22:23:07,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:23:07,184 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73a4d77, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:23:07,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-11-06 22:23:07,187 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:23:07,188 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-06 22:23:07,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:23:07,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:07,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:23:07,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:23:07,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:07,195 INFO L85 PathProgramCache]: Analyzing trace with hash 778689, now seen corresponding path program 1 times [2023-11-06 22:23:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:07,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133976861] [2023-11-06 22:23:07,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:07,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:07,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:07,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:07,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133976861] [2023-11-06 22:23:07,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133976861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:07,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:07,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:23:07,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468107979] [2023-11-06 22:23:07,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:07,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:07,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:07,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:07,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 296 [2023-11-06 22:23:07,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 60 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:07,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:07,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 296 [2023-11-06 22:23:07,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:41,013 INFO L124 PetriNetUnfolderBase]: 314139/408372 cut-off events. [2023-11-06 22:23:41,013 INFO L125 PetriNetUnfolderBase]: For 17430/17430 co-relation queries the response was YES. [2023-11-06 22:23:41,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819869 conditions, 408372 events. 314139/408372 cut-off events. For 17430/17430 co-relation queries the response was YES. Maximal size of possible extension queue 20701. Compared 2999696 event pairs, 258754 based on Foata normal form. 0/210532 useless extension candidates. Maximal degree in co-relation 818224. Up to 397670 conditions per place. [2023-11-06 22:23:44,019 INFO L140 encePairwiseOnDemand]: 280/296 looper letters, 62 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2023-11-06 22:23:44,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 323 flow [2023-11-06 22:23:44,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:23:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2023-11-06 22:23:44,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2023-11-06 22:23:44,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2023-11-06 22:23:44,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2023-11-06 22:23:44,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:44,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2023-11-06 22:23:44,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:44,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:44,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:44,060 INFO L175 Difference]: Start difference. First operand has 76 places, 60 transitions, 147 flow. Second operand 3 states and 504 transitions. [2023-11-06 22:23:44,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 323 flow [2023-11-06 22:23:44,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 74 transitions, 299 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-11-06 22:23:44,504 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 188 flow [2023-11-06 22:23:44,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2023-11-06 22:23:44,511 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2023-11-06 22:23:44,511 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 188 flow [2023-11-06 22:23:44,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:44,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:44,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:23:44,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:23:44,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:23:44,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1728165144, now seen corresponding path program 1 times [2023-11-06 22:23:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:44,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888337563] [2023-11-06 22:23:44,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:44,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:44,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:44,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888337563] [2023-11-06 22:23:44,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888337563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:44,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:44,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:44,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188169230] [2023-11-06 22:23:44,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:44,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:44,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:44,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:44,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 296 [2023-11-06 22:23:44,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:44,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:44,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 296 [2023-11-06 22:23:44,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand