./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-parallel-sum-1.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-parallel-sum-1.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 b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:04:57,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:04:57,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:04:57,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:04:57,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:04:57,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:04:57,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:04:57,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:04:57,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:04:57,535 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:04:57,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:04:57,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:04:57,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:04:57,542 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:04:57,542 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:04:57,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:04:57,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:04:57,543 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:04:57,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:04:57,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:04:57,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:04:57,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:04:57,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:04:57,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:04:57,545 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:04:57,546 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:04:57,546 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:04:57,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:04:57,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:04:57,548 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:04:57,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:04:57,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:04:57,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:04:57,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:04:57,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:04:57,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:04:57,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:04:57,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:04:57,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:04:57,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:04:57,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:04:57,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:04:57,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:04:57,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:04:57,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 [2024-11-19 14:04:57,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:04:57,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:04:57,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:04:57,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:04:57,877 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:04:57,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-19 14:04:59,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:04:59,604 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:04:59,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-19 14:04:59,612 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7cdd787/a5ee54237870492e97fc6382839fe59b/FLAGf0285355b [2024-11-19 14:04:59,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7cdd787/a5ee54237870492e97fc6382839fe59b [2024-11-19 14:04:59,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:04:59,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:04:59,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:04:59,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:04:59,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:04:59,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:04:59,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e1e1e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59, skipping insertion in model container [2024-11-19 14:04:59,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:04:59,664 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:04:59,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:04:59,931 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:04:59,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:04:59,983 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:04:59,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59 WrapperNode [2024-11-19 14:04:59,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:04:59,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:04:59,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:04:59,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:04:59,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,058 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 365 [2024-11-19 14:05:00,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:00,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:05:00,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:05:00,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:05:00,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,118 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-19 14:05:00,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:05:00,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:05:00,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:05:00,164 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:05:00,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (1/1) ... [2024-11-19 14:05:00,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:00,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:05:00,206 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 14:05:00,208 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 14:05:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:05:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:05:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:05:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:05:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:05:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:05:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:05:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:05:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:05:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:05:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:05:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 14:05:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 14:05:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:05:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:05:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 14:05:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 14:05:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:05:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:05:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:05:00,255 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 14:05:00,386 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:05:00,388 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:05:00,933 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:05:00,933 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:05:01,587 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:05:01,588 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-19 14:05:01,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:01 BoogieIcfgContainer [2024-11-19 14:05:01,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:05:01,592 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:05:01,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:05:01,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:05:01,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:04:59" (1/3) ... [2024-11-19 14:05:01,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7b88fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:01, skipping insertion in model container [2024-11-19 14:05:01,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:59" (2/3) ... [2024-11-19 14:05:01,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7b88fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:01, skipping insertion in model container [2024-11-19 14:05:01,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:01" (3/3) ... [2024-11-19 14:05:01,599 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2024-11-19 14:05:01,621 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:05:01,621 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-11-19 14:05:01,621 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:05:01,778 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 14:05:01,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 212 flow [2024-11-19 14:05:01,873 INFO L124 PetriNetUnfolderBase]: 9/88 cut-off events. [2024-11-19 14:05:01,873 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 14:05:01,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 88 events. 9/88 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 290 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2024-11-19 14:05:01,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 92 transitions, 212 flow [2024-11-19 14:05:01,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 86 transitions, 193 flow [2024-11-19 14:05:01,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:05:01,906 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;@3e731c3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:05:01,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2024-11-19 14:05:01,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:05:01,908 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-19 14:05:01,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:05:01,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:01,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-19 14:05:01,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-11-19 14:05:01,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:01,919 INFO L85 PathProgramCache]: Analyzing trace with hash 38108, now seen corresponding path program 1 times [2024-11-19 14:05:01,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:01,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390530234] [2024-11-19 14:05:01,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:01,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:02,143 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 14:05:02,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:02,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390530234] [2024-11-19 14:05:02,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390530234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:02,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:02,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:05:02,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329404630] [2024-11-19 14:05:02,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:02,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:02,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:02,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:02,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:02,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-11-19 14:05:02,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 14:05:02,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:02,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-11-19 14:05:02,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:25,561 INFO L124 PetriNetUnfolderBase]: 220169/284437 cut-off events. [2024-11-19 14:05:25,561 INFO L125 PetriNetUnfolderBase]: For 8986/8986 co-relation queries the response was YES. [2024-11-19 14:05:26,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575900 conditions, 284437 events. 220169/284437 cut-off events. For 8986/8986 co-relation queries the response was YES. Maximal size of possible extension queue 10323. Compared 1812242 event pairs, 200998 based on Foata normal form. 1/150063 useless extension candidates. Maximal degree in co-relation 554853. Up to 284318 conditions per place. [2024-11-19 14:05:27,213 INFO L140 encePairwiseOnDemand]: 78/92 looper letters, 64 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2024-11-19 14:05:27,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 73 transitions, 297 flow [2024-11-19 14:05:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-19 14:05:27,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-11-19 14:05:27,224 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 193 flow. Second operand 3 states and 114 transitions. [2024-11-19 14:05:27,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 73 transitions, 297 flow [2024-11-19 14:05:27,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 284 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-19 14:05:27,315 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 156 flow [2024-11-19 14:05:27,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2024-11-19 14:05:27,323 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -14 predicate places. [2024-11-19 14:05:27,323 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 156 flow [2024-11-19 14:05:27,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 14:05:27,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:27,324 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:05:27,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:05:27,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-11-19 14:05:27,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:27,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1182543, now seen corresponding path program 1 times [2024-11-19 14:05:27,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:27,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083540536] [2024-11-19 14:05:27,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:27,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:27,373 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 14:05:27,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:27,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083540536] [2024-11-19 14:05:27,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083540536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:27,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:27,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:05:27,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731123561] [2024-11-19 14:05:27,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:27,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:27,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:27,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:27,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:27,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-11-19 14:05:27,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 14:05:27,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:27,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-11-19 14:05:27,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand