./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB --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 9c69d99d457f457373aeec8cf091a3652593de03a43f690cddfeb4bfa1e12a5f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:10:40,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:10:40,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:10:40,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:10:40,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:10:40,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:10:40,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:10:40,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:10:40,141 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:10:40,141 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:10:40,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:10:40,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:10:40,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:10:40,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:10:40,142 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:10:40,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:10:40,143 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:10:40,143 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:10:40,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:10:40,143 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:10:40,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:10:40,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:10:40,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:10:40,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:10:40,144 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:10:40,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:10:40,144 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:10:40,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:10:40,145 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:10:40,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:10:40,145 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:10:40,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:40,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:40,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:40,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:40,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:10:40,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:40,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:40,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:40,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:40,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:10:40,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:10:40,147 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:10:40,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:10:40,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:10:40,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:10:40,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:10:40,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:10:40,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:10:40,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:10:40,148 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 9c69d99d457f457373aeec8cf091a3652593de03a43f690cddfeb4bfa1e12a5f [2024-11-28 03:10:40,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:10:40,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:10:40,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:10:40,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:10:40,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:10:40,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2024-11-28 03:10:43,792 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/data/1420285d8/9ceca749a65e49cba3f2a0db3b3dfec3/FLAGa2b1b9b2c [2024-11-28 03:10:44,117 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:10:44,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2024-11-28 03:10:44,130 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/data/1420285d8/9ceca749a65e49cba3f2a0db3b3dfec3/FLAGa2b1b9b2c [2024-11-28 03:10:44,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/data/1420285d8/9ceca749a65e49cba3f2a0db3b3dfec3 [2024-11-28 03:10:44,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:10:44,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:10:44,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:44,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:10:44,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:10:44,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752e7a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44, skipping insertion in model container [2024-11-28 03:10:44,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:10:44,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:44,456 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:10:44,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:44,524 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:10:44,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44 WrapperNode [2024-11-28 03:10:44,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:44,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:44,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:10:44,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:10:44,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,548 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,587 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 226 [2024-11-28 03:10:44,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:44,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:10:44,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:10:44,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:10:44,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,604 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,631 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:10:44,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,645 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:10:44,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:10:44,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:10:44,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:10:44,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (1/1) ... [2024-11-28 03:10:44,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:44,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:44,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:10:44,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a591b760-f5cb-4441-b4ac-49ca08b6d751/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:10:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:10:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 03:10:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 03:10:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 03:10:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 03:10:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 03:10:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 03:10:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-28 03:10:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-28 03:10:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:10:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-28 03:10:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-28 03:10:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:10:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:10:44,754 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:10:44,889 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:10:44,891 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:10:45,420 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:10:45,421 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:10:45,784 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:10:45,787 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:10:45,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:45 BoogieIcfgContainer [2024-11-28 03:10:45,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:10:45,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:10:45,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:10:45,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:10:45,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:44" (1/3) ... [2024-11-28 03:10:45,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd22368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:45, skipping insertion in model container [2024-11-28 03:10:45,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:44" (2/3) ... [2024-11-28 03:10:45,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd22368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:45, skipping insertion in model container [2024-11-28 03:10:45,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:45" (3/3) ... [2024-11-28 03:10:45,801 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-11-28 03:10:45,825 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:10:45,827 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-5.wvr.c that has 6 procedures, 86 locations, 1 initial locations, 0 loop locations, and 20 error locations. [2024-11-28 03:10:45,827 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:10:45,959 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-28 03:10:46,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 89 transitions, 213 flow [2024-11-28 03:10:46,099 INFO L124 PetriNetUnfolderBase]: 4/84 cut-off events. [2024-11-28 03:10:46,105 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:10:46,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 84 events. 4/84 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 254 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2024-11-28 03:10:46,115 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 89 transitions, 213 flow [2024-11-28 03:10:46,121 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 82 transitions, 191 flow [2024-11-28 03:10:46,135 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:10:46,153 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;@6e5e99a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:10:46,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-28 03:10:46,164 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:10:46,164 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-28 03:10:46,164 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:10:46,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:10:46,165 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:46,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-11-28 03:10:46,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:46,175 INFO L85 PathProgramCache]: Analyzing trace with hash -943359646, now seen corresponding path program 1 times [2024-11-28 03:10:46,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:46,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057146456] [2024-11-28 03:10:46,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:46,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:10:46,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:46,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057146456] [2024-11-28 03:10:46,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057146456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:46,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:46,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:10:46,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270422789] [2024-11-28 03:10:46,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:46,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:46,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:46,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:46,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:46,821 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 89 [2024-11-28 03:10:46,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-28 03:10:46,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:10:46,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 89 [2024-11-28 03:10:46,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:11:28,445 INFO L124 PetriNetUnfolderBase]: 312382/415563 cut-off events. [2024-11-28 03:11:28,446 INFO L125 PetriNetUnfolderBase]: For 15356/15356 co-relation queries the response was YES. [2024-11-28 03:11:29,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810544 conditions, 415563 events. 312382/415563 cut-off events. For 15356/15356 co-relation queries the response was YES. Maximal size of possible extension queue 17003. Compared 3233101 event pairs, 301350 based on Foata normal form. 0/260375 useless extension candidates. Maximal degree in co-relation 764880. Up to 380929 conditions per place. [2024-11-28 03:11:32,532 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 52 selfloop transitions, 3 changer transitions 0/77 dead transitions. [2024-11-28 03:11:32,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 77 transitions, 291 flow [2024-11-28 03:11:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:11:32,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:11:32,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-11-28 03:11:32,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5280898876404494 [2024-11-28 03:11:32,548 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 191 flow. Second operand 3 states and 141 transitions. [2024-11-28 03:11:32,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 77 transitions, 291 flow [2024-11-28 03:11:45,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 77 transitions, 274 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-11-28 03:11:46,001 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 170 flow [2024-11-28 03:11:46,005 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2024-11-28 03:11:46,011 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -12 predicate places. [2024-11-28 03:11:46,011 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 170 flow [2024-11-28 03:11:46,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-28 03:11:46,012 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:11:46,012 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:46,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:11:46,013 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-11-28 03:11:46,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:46,014 INFO L85 PathProgramCache]: Analyzing trace with hash -943359645, now seen corresponding path program 1 times [2024-11-28 03:11:46,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:46,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282499915] [2024-11-28 03:11:46,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:46,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:11:46,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:46,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282499915] [2024-11-28 03:11:46,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282499915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:46,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:46,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:11:46,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735030216] [2024-11-28 03:11:46,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:46,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:11:46,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:46,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:11:46,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:11:46,169 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 89 [2024-11-28 03:11:46,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-28 03:11:46,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:11:46,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 89 [2024-11-28 03:11:46,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand