./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.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_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1 --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 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:47:02,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:47:02,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 15:47:02,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:47:02,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:47:02,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:47:02,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:47:02,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:47:02,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:47:02,414 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:47:02,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:47:02,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:47:02,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:47:02,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:47:02,415 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:47:02,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:47:02,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:47:02,416 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:47:02,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:47:02,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:47:02,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:47:02,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:47:02,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:47:02,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:47:02,417 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 15:47:02,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:47:02,417 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:47:02,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:47:02,417 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:47:02,417 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:47:02,417 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:47:02,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:47:02,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:47:02,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:47:02,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:47:02,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:47:02,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:47:02,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:47:02,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:47:02,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:47:02,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:47:02,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:47:02,419 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:47:02,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:47:02,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:47:02,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:47:02,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:47:02,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:47:02,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:47:02,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:47:02,420 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_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1 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 -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2024-12-02 15:47:02,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:47:02,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:47:02,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:47:02,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:47:02,667 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:47:02,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-12-02 15:47:05,429 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/data/ca74f143e/1b878f50d9794fab92632e4e4e1d0c5f/FLAGd130aac78 [2024-12-02 15:47:05,647 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:47:05,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-12-02 15:47:05,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/data/ca74f143e/1b878f50d9794fab92632e4e4e1d0c5f/FLAGd130aac78 [2024-12-02 15:47:05,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/data/ca74f143e/1b878f50d9794fab92632e4e4e1d0c5f [2024-12-02 15:47:05,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:47:05,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:47:05,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:47:05,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:47:05,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:47:05,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:05,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78cdff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05, skipping insertion in model container [2024-12-02 15:47:05,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:05,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:47:05,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:47:05,926 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:47:05,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:47:05,978 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:47:05,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05 WrapperNode [2024-12-02 15:47:05,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:47:05,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:47:05,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:47:05,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:47:05,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:05,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,032 INFO L138 Inliner]: procedures = 28, calls = 66, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 364 [2024-12-02 15:47:06,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:47:06,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:47:06,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:47:06,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:47:06,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,069 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]. [2024-12-02 15:47:06,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,081 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:47:06,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:47:06,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:47:06,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:47:06,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (1/1) ... [2024-12-02 15:47:06,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:47:06,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:47:06,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:47:06,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_310b8fcc-6d00-4370-9d1c-42765fbbee61/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:47:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:47:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:47:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:47:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:47:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:47:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-02 15:47:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-02 15:47:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-02 15:47:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-02 15:47:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-02 15:47:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-02 15:47:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-12-02 15:47:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-12-02 15:47:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:47:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:47:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-12-02 15:47:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-12-02 15:47:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-12-02 15:47:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-12-02 15:47:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 15:47:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 15:47:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 15:47:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:47:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:47:06,161 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 15:47:06,276 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:47:06,278 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:47:06,857 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 15:47:06,857 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:47:07,427 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:47:07,427 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-12-02 15:47:07,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:47:07 BoogieIcfgContainer [2024-12-02 15:47:07,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:47:07,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:47:07,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:47:07,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:47:07,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:47:05" (1/3) ... [2024-12-02 15:47:07,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5567d52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:47:07, skipping insertion in model container [2024-12-02 15:47:07,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:47:05" (2/3) ... [2024-12-02 15:47:07,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5567d52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:47:07, skipping insertion in model container [2024-12-02 15:47:07,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:47:07" (3/3) ... [2024-12-02 15:47:07,438 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2024-12-02 15:47:07,457 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:47:07,458 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1-dsl.wvr.c that has 7 procedures, 104 locations, 1 initial locations, 5 loop locations, and 36 error locations. [2024-12-02 15:47:07,458 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 15:47:07,686 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-12-02 15:47:07,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 122 transitions, 310 flow [2024-12-02 15:47:07,802 INFO L124 PetriNetUnfolderBase]: 13/110 cut-off events. [2024-12-02 15:47:07,805 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 15:47:07,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 110 events. 13/110 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 410 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2024-12-02 15:47:07,811 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 122 transitions, 310 flow [2024-12-02 15:47:07,817 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 108 transitions, 261 flow [2024-12-02 15:47:07,827 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:47:07,840 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;@12e3bdb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:47:07,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2024-12-02 15:47:07,845 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:47:07,845 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-12-02 15:47:07,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:47:07,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:47:07,846 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-12-02 15:47:07,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2024-12-02 15:47:07,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:47:07,853 INFO L85 PathProgramCache]: Analyzing trace with hash 40269, now seen corresponding path program 1 times [2024-12-02 15:47:07,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:47:07,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858192246] [2024-12-02 15:47:07,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:47:07,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:47:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:47:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:47:08,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:47:08,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858192246] [2024-12-02 15:47:08,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858192246] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:47:08,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:47:08,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 15:47:08,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789631035] [2024-12-02 15:47:08,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:47:08,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:47:08,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:47:08,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:47:08,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:47:08,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 126 [2024-12-02 15:47:08,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 108 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-12-02 15:47:08,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:47:08,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 126 [2024-12-02 15:47:08,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand