./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/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_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/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_76dde4b9-9613-4856-a953-8f4be4c8f2f6/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 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:30:01,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:30:02,024 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:30:02,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:30:02,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:30:02,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:30:02,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:30:02,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:30:02,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:30:02,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:30:02,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:30:02,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:30:02,100 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:30:02,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:30:02,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:30:02,102 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:30:02,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:30:02,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:30:02,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:30:02,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:30:02,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:30:02,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:30:02,106 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:30:02,106 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:30:02,107 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:30:02,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:30:02,108 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:30:02,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:30:02,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:30:02,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:30:02,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:30:02,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:30:02,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:30:02,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:30:02,112 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:30:02,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:30:02,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:30:02,113 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:30:02,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:30:02,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:30:02,115 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:30:02,115 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_76dde4b9-9613-4856-a953-8f4be4c8f2f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca [2023-11-06 22:30:02,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:30:02,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:30:02,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:30:02,593 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:30:02,594 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:30:02,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2023-11-06 22:30:06,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:30:06,565 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:30:06,566 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2023-11-06 22:30:06,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/data/2a73c6d27/afd5067246a742d9b1042f7e37273c54/FLAGbfbbabf62 [2023-11-06 22:30:06,606 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/data/2a73c6d27/afd5067246a742d9b1042f7e37273c54 [2023-11-06 22:30:06,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:30:06,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:30:06,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:30:06,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:30:06,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:30:06,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:30:06" (1/1) ... [2023-11-06 22:30:06,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3770888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:06, skipping insertion in model container [2023-11-06 22:30:06,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:30:06" (1/1) ... [2023-11-06 22:30:06,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:30:07,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:30:07,029 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:30:07,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:30:07,086 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:07,087 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:07,096 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:30:07,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07 WrapperNode [2023-11-06 22:30:07,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:30:07,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:30:07,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:30:07,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:30:07,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,191 INFO L138 Inliner]: procedures = 26, calls = 116, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2023-11-06 22:30:07,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:30:07,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:30:07,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:30:07,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:30:07,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:30:07,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:30:07,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:30:07,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:30:07,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (1/1) ... [2023-11-06 22:30:07,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:30:07,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:30:07,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:30:07,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76dde4b9-9613-4856-a953-8f4be4c8f2f6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:30:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:30:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:30:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:30:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:30:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:30:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:30:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:30:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:30:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:30:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:30:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-06 22:30:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-06 22:30:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:30:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-06 22:30:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-06 22:30:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-06 22:30:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-06 22:30:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2023-11-06 22:30:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2023-11-06 22:30:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:30:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:30:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:30:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:30:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:30:07,393 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 22:30:07,584 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:30:07,587 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:30:08,247 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:30:08,499 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:30:08,499 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:30:08,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:30:08 BoogieIcfgContainer [2023-11-06 22:30:08,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:30:08,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:30:08,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:30:08,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:30:08,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:30:06" (1/3) ... [2023-11-06 22:30:08,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef6397c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:30:08, skipping insertion in model container [2023-11-06 22:30:08,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:07" (2/3) ... [2023-11-06 22:30:08,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef6397c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:30:08, skipping insertion in model container [2023-11-06 22:30:08,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:30:08" (3/3) ... [2023-11-06 22:30:08,516 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2023-11-06 22:30:08,527 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:30:08,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:30:08,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-06 22:30:08,542 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:30:08,730 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2023-11-06 22:30:08,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 248 transitions, 545 flow [2023-11-06 22:30:08,983 INFO L124 PetriNetUnfolderBase]: 2/241 cut-off events. [2023-11-06 22:30:08,983 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-06 22:30:08,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 241 events. 2/241 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 194 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 189. Up to 2 conditions per place. [2023-11-06 22:30:08,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 248 transitions, 545 flow [2023-11-06 22:30:09,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 209 transitions, 457 flow [2023-11-06 22:30:09,007 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:30:09,020 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 209 transitions, 457 flow [2023-11-06 22:30:09,024 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 209 transitions, 457 flow [2023-11-06 22:30:09,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 209 transitions, 457 flow [2023-11-06 22:30:09,107 INFO L124 PetriNetUnfolderBase]: 1/209 cut-off events. [2023-11-06 22:30:09,108 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:30:09,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 209 events. 1/209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 189. Up to 2 conditions per place. [2023-11-06 22:30:09,118 INFO L119 LiptonReduction]: Number of co-enabled transitions 8598 [2023-11-06 22:30:26,919 INFO L134 LiptonReduction]: Checked pairs total: 53308 [2023-11-06 22:30:26,919 INFO L136 LiptonReduction]: Total number of compositions: 128 [2023-11-06 22:30:26,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:30:26,945 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;@66d336b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:30:26,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-06 22:30:26,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:30:26,949 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-06 22:30:26,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:30:26,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:30:26,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:30:26,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-11-06 22:30:26,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1016215, now seen corresponding path program 1 times [2023-11-06 22:30:26,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:26,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655416941] [2023-11-06 22:30:26,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:26,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:27,462 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 22:30:27,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:27,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655416941] [2023-11-06 22:30:27,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655416941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:27,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:27,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:30:27,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461450449] [2023-11-06 22:30:27,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:27,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:30:27,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:27,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:30:27,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:30:27,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 376 [2023-11-06 22:30:27,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 84 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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 22:30:27,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:30:27,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 376 [2023-11-06 22:30:27,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand