./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC --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 0.3.0-dev-6497de0 [2024-11-24 00:47:55,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:47:55,720 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 00:47:55,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:47:55,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:47:55,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:47:55,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:47:55,783 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:47:55,784 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:47:55,785 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:47:55,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:47:55,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:47:55,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:47:55,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:47:55,787 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:47:55,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:47:55,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:47:55,788 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:47:55,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:47:55,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:47:55,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:47:55,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:47:55,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:47:55,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:47:55,790 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:47:55,790 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:47:55,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:47:55,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:47:55,791 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:47:55,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:47:55,791 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:47:55,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:47:55,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:47:55,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:47:55,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:47:55,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:47:55,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:47:55,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:47:55,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:47:55,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:47:55,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:47:55,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:47:55,794 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:47:55,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:47:55,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:47:55,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:47:55,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:47:55,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:47:55,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:47:55,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:47:55,796 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_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC 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 [2024-11-24 00:47:56,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:47:56,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:47:56,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:47:56,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:47:56,252 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:47:56,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-24 00:47:59,980 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/data/9cbd50968/796a131590384e37849b8e375195b69e/FLAG651f16abf [2024-11-24 00:48:00,265 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:48:00,266 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-24 00:48:00,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/data/9cbd50968/796a131590384e37849b8e375195b69e/FLAG651f16abf [2024-11-24 00:48:00,295 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/data/9cbd50968/796a131590384e37849b8e375195b69e [2024-11-24 00:48:00,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:48:00,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:48:00,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:00,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:48:00,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:48:00,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536964a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00, skipping insertion in model container [2024-11-24 00:48:00,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:48:00,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:00,642 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:48:00,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:00,739 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:48:00,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00 WrapperNode [2024-11-24 00:48:00,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:00,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:00,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:48:00,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:48:00,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,806 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 360 [2024-11-24 00:48:00,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:00,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:48:00,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:48:00,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:48:00,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,850 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]. [2024-11-24 00:48:00,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,863 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:48:00,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:48:00,893 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:48:00,893 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:48:00,894 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (1/1) ... [2024-11-24 00:48:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:00,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:00,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:48:00,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5b57d0-9714-43d3-9ad4-ceb463252766/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:48:00,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:48:00,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:48:00,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:48:00,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:48:00,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:48:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-24 00:48:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-24 00:48:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-24 00:48:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-24 00:48:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-24 00:48:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-24 00:48:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-24 00:48:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-24 00:48:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:48:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:48:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-24 00:48:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-24 00:48:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:48:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:48:00,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:48:00,998 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:48:01,222 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:48:01,227 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:48:02,148 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:48:02,149 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:48:03,111 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:48:03,113 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-24 00:48:03,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:03 BoogieIcfgContainer [2024-11-24 00:48:03,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:48:03,116 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:48:03,116 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:48:03,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:48:03,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:48:00" (1/3) ... [2024-11-24 00:48:03,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c8583e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:03, skipping insertion in model container [2024-11-24 00:48:03,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:00" (2/3) ... [2024-11-24 00:48:03,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c8583e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:03, skipping insertion in model container [2024-11-24 00:48:03,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:03" (3/3) ... [2024-11-24 00:48:03,128 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2024-11-24 00:48:03,149 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:48:03,153 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1.wvr.c that has 5 procedures, 84 locations, 1 initial locations, 5 loop locations, and 36 error locations. [2024-11-24 00:48:03,153 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:48:03,424 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-24 00:48:03,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 212 flow [2024-11-24 00:48:03,581 INFO L124 PetriNetUnfolderBase]: 9/88 cut-off events. [2024-11-24 00:48:03,584 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 00:48:03,596 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 278 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. [2024-11-24 00:48:03,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 92 transitions, 212 flow [2024-11-24 00:48:03,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 86 transitions, 193 flow [2024-11-24 00:48:03,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:48:03,643 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;@2e64e504, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:48:03,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2024-11-24 00:48:03,647 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:48:03,647 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-24 00:48:03,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:48:03,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:48:03,648 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-24 00:48:03,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-11-24 00:48:03,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash 38236, now seen corresponding path program 1 times [2024-11-24 00:48:03,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:03,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581013960] [2024-11-24 00:48:03,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:03,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:03,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:03,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581013960] [2024-11-24 00:48:03,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581013960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:03,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:03,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 00:48:03,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008555368] [2024-11-24 00:48:03,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:03,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:03,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:03,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:04,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:04,015 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-11-24 00:48:04,019 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) [2024-11-24 00:48:04,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:48:04,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-11-24 00:48:04,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:48:36,370 INFO L124 PetriNetUnfolderBase]: 219675/283943 cut-off events. [2024-11-24 00:48:36,371 INFO L125 PetriNetUnfolderBase]: For 8874/8874 co-relation queries the response was YES. [2024-11-24 00:48:36,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574808 conditions, 283943 events. 219675/283943 cut-off events. For 8874/8874 co-relation queries the response was YES. Maximal size of possible extension queue 10309. Compared 1812835 event pairs, 200512 based on Foata normal form. 1/149749 useless extension candidates. Maximal degree in co-relation 553761. Up to 283720 conditions per place. [2024-11-24 00:48:38,303 INFO L140 encePairwiseOnDemand]: 78/92 looper letters, 64 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2024-11-24 00:48:38,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 73 transitions, 297 flow [2024-11-24 00:48:38,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:38,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:48:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-24 00:48:38,321 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-11-24 00:48:38,324 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 193 flow. Second operand 3 states and 114 transitions. [2024-11-24 00:48:38,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 73 transitions, 297 flow [2024-11-24 00:48:39,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 284 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-24 00:48:39,798 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 156 flow [2024-11-24 00:48:39,801 INFO L262 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} [2024-11-24 00:48:39,806 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -14 predicate places. [2024-11-24 00:48:39,806 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 156 flow [2024-11-24 00:48:39,807 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) [2024-11-24 00:48:39,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:48:39,807 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-24 00:48:39,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:48:39,808 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-11-24 00:48:39,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:39,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1186515, now seen corresponding path program 1 times [2024-11-24 00:48:39,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:39,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331708884] [2024-11-24 00:48:39,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:39,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:39,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:39,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331708884] [2024-11-24 00:48:39,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331708884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:39,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:39,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 00:48:39,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990171631] [2024-11-24 00:48:39,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:39,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:39,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:39,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:39,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:39,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-11-24 00:48:39,910 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) [2024-11-24 00:48:39,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:48:39,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-11-24 00:48:39,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand