./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9053cd9eb87a8824d68da81e817a5c2746c138459aecfddcec40af107177afcb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:05:37,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:05:37,092 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:05:37,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:05:37,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:05:37,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:05:37,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:05:37,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:05:37,137 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:05:37,138 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:05:37,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:05:37,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:05:37,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:05:37,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:05:37,142 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:05:37,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:05:37,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:05:37,144 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:05:37,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:05:37,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:05:37,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:05:37,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:05:37,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:05:37,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:05:37,150 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:05:37,150 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:05:37,150 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:05:37,150 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:05:37,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:05:37,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:05:37,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:05:37,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:05:37,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:05:37,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:05:37,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:37,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:05:37,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:05:37,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:05:37,154 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:05:37,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:05:37,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:05:37,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:05:37,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:05:37,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:05:37,155 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9053cd9eb87a8824d68da81e817a5c2746c138459aecfddcec40af107177afcb [2024-11-19 14:05:37,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:05:37,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:05:37,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:05:37,466 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:05:37,466 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:05:37,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2024-11-19 14:05:38,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:05:39,083 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:05:39,084 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2024-11-19 14:05:39,091 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cfbdba5a/74c43805fb68467d85d4c6acbc759535/FLAG2f584dc51 [2024-11-19 14:05:39,108 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cfbdba5a/74c43805fb68467d85d4c6acbc759535 [2024-11-19 14:05:39,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:05:39,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:05:39,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:05:39,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:05:39,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:05:39,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@410d486a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39, skipping insertion in model container [2024-11-19 14:05:39,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:05:39,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:05:39,389 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:05:39,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:05:39,456 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:05:39,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39 WrapperNode [2024-11-19 14:05:39,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:05:39,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:39,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:05:39,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:05:39,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,521 INFO L138 Inliner]: procedures = 24, calls = 25, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 334 [2024-11-19 14:05:39,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:39,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:05:39,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:05:39,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:05:39,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,581 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]. [2024-11-19 14:05:39,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:05:39,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:05:39,602 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:05:39,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:05:39,603 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (1/1) ... [2024-11-19 14:05:39,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:39,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:05:39,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 14:05:39,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 14:05:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:05:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:05:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:05:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:05:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:05:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:05:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:05:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 14:05:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 14:05:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:05:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-19 14:05:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-19 14:05:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-19 14:05:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-19 14:05:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2024-11-19 14:05:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2024-11-19 14:05:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2024-11-19 14:05:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2024-11-19 14:05:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:05:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:05:39,705 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:05:39,948 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:05:39,950 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:05:40,392 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:05:40,393 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:05:40,693 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:05:40,693 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 14:05:40,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:40 BoogieIcfgContainer [2024-11-19 14:05:40,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:05:40,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:05:40,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:05:40,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:05:40,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:05:39" (1/3) ... [2024-11-19 14:05:40,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4189749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:40, skipping insertion in model container [2024-11-19 14:05:40,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:39" (2/3) ... [2024-11-19 14:05:40,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4189749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:40, skipping insertion in model container [2024-11-19 14:05:40,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:40" (3/3) ... [2024-11-19 14:05:40,704 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2024-11-19 14:05:40,722 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:05:40,722 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-11-19 14:05:40,722 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:05:40,833 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-19 14:05:40,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 137 transitions, 330 flow [2024-11-19 14:05:40,949 INFO L124 PetriNetUnfolderBase]: 7/129 cut-off events. [2024-11-19 14:05:40,950 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 14:05:40,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 129 events. 7/129 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 423 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 124. Up to 2 conditions per place. [2024-11-19 14:05:40,955 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 137 transitions, 330 flow [2024-11-19 14:05:40,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 127 transitions, 299 flow [2024-11-19 14:05:40,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:05:40,975 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;@5b5b263d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:05:40,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2024-11-19 14:05:40,980 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:05:40,980 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-19 14:05:40,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:05:40,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:40,981 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:40,982 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-11-19 14:05:40,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:40,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1261431760, now seen corresponding path program 1 times [2024-11-19 14:05:40,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:40,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650998866] [2024-11-19 14:05:40,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:40,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:41,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:41,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650998866] [2024-11-19 14:05:41,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650998866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:41,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:41,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:05:41,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843259157] [2024-11-19 14:05:41,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:41,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:41,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:41,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 137 [2024-11-19 14:05:41,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 127 transitions, 299 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-11-19 14:05:41,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:41,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 137 [2024-11-19 14:05:41,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand