./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.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_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/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_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/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_139e9d91-9876-4f78-a4cc-2a460b2025a8/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 0f0e249de6560bdff430500b6d1ad159bf4a19253ccf183d061fafc41fe4114b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:05:50,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:05:50,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 02:05:50,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:05:50,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:05:50,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:05:50,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:05:50,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:05:50,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:05:50,583 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:05:50,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:05:50,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:05:50,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:05:50,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:05:50,585 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:05:50,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:05:50,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:05:50,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:05:50,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:05:50,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:05:50,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:05:50,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:05:50,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:05:50,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:05:50,587 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 02:05:50,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 02:05:50,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:05:50,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:05:50,587 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:05:50,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:05:50,587 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:05:50,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:05:50,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:05:50,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:05:50,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:05:50,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:05:50,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:05:50,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:05:50,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:05:50,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:05:50,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:05:50,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:05:50,589 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:05:50,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:05:50,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:05:50,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:05:50,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:05:50,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:05:50,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:05:50,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:05:50,591 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_139e9d91-9876-4f78-a4cc-2a460b2025a8/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 -> 0f0e249de6560bdff430500b6d1ad159bf4a19253ccf183d061fafc41fe4114b [2024-11-24 02:05:50,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:05:50,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:05:50,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:05:50,919 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:05:50,919 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:05:50,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2024-11-24 02:05:54,027 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/data/8b9b49381/4c89249b8ff3423d89cbddf5e3328fba/FLAG30d3d9763 [2024-11-24 02:05:54,342 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:05:54,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2024-11-24 02:05:54,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/data/8b9b49381/4c89249b8ff3423d89cbddf5e3328fba/FLAG30d3d9763 [2024-11-24 02:05:54,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/data/8b9b49381/4c89249b8ff3423d89cbddf5e3328fba [2024-11-24 02:05:54,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:05:54,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:05:54,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:05:54,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:05:54,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:05:54,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5395310d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54, skipping insertion in model container [2024-11-24 02:05:54,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,426 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:05:54,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:05:54,701 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:05:54,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:05:54,741 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:05:54,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54 WrapperNode [2024-11-24 02:05:54,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:05:54,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:05:54,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:05:54,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:05:54,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,781 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 12, calls inlined = 14, statements flattened = 195 [2024-11-24 02:05:54,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:05:54,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:05:54,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:05:54,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:05:54,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,810 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-24 02:05:54,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,818 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:05:54,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:05:54,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:05:54,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:05:54,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (1/1) ... [2024-11-24 02:05:54,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:05:54,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:05:54,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:05:54,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:05:54,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:05:54,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-24 02:05:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-24 02:05:54,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-24 02:05:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:05:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 02:05:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 02:05:54,914 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 02:05:55,056 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:05:55,059 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:05:55,602 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 02:05:55,602 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:05:55,994 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:05:55,995 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 02:05:55,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:05:55 BoogieIcfgContainer [2024-11-24 02:05:55,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:05:55,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:05:55,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:05:56,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:05:56,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:05:54" (1/3) ... [2024-11-24 02:05:56,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f893f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:05:56, skipping insertion in model container [2024-11-24 02:05:56,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:54" (2/3) ... [2024-11-24 02:05:56,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f893f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:05:56, skipping insertion in model container [2024-11-24 02:05:56,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:05:55" (3/3) ... [2024-11-24 02:05:56,006 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2024-11-24 02:05:56,021 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:05:56,024 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-dec-subseq.wvr.c that has 3 procedures, 39 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2024-11-24 02:05:56,024 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 02:05:56,095 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-24 02:05:56,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 100 flow [2024-11-24 02:05:56,182 INFO L124 PetriNetUnfolderBase]: 5/41 cut-off events. [2024-11-24 02:05:56,188 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 02:05:56,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 5/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 99 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-11-24 02:05:56,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 43 transitions, 100 flow [2024-11-24 02:05:56,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 39 transitions, 87 flow [2024-11-24 02:05:56,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:05:56,232 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;@5d4f9108, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:05:56,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-24 02:05:56,238 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 02:05:56,240 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-24 02:05:56,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 02:05:56,241 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:05:56,241 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-24 02:05:56,242 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:05:56,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:56,251 INFO L85 PathProgramCache]: Analyzing trace with hash 597744, now seen corresponding path program 1 times [2024-11-24 02:05:56,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:56,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844978906] [2024-11-24 02:05:56,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:56,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:56,589 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 02:05:56,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844978906] [2024-11-24 02:05:56,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844978906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:56,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:56,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 02:05:56,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580808939] [2024-11-24 02:05:56,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:56,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:05:56,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:56,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:05:56,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:05:56,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-24 02:05:56,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 02:05:56,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:05:56,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-24 02:05:56,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:05:57,054 INFO L124 PetriNetUnfolderBase]: 238/425 cut-off events. [2024-11-24 02:05:57,054 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-24 02:05:57,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 425 events. 238/425 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1878 event pairs, 142 based on Foata normal form. 2/284 useless extension candidates. Maximal degree in co-relation 751. Up to 368 conditions per place. [2024-11-24 02:05:57,065 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 29 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-11-24 02:05:57,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 167 flow [2024-11-24 02:05:57,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:05:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 02:05:57,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-11-24 02:05:57,085 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-11-24 02:05:57,088 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 87 flow. Second operand 4 states and 78 transitions. [2024-11-24 02:05:57,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 167 flow [2024-11-24 02:05:57,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-24 02:05:57,100 INFO L231 Difference]: Finished difference. Result has 42 places, 43 transitions, 138 flow [2024-11-24 02:05:57,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=42, PETRI_TRANSITIONS=43} [2024-11-24 02:05:57,110 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-11-24 02:05:57,110 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 43 transitions, 138 flow [2024-11-24 02:05:57,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 02:05:57,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:05:57,111 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-24 02:05:57,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 02:05:57,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:05:57,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:57,113 INFO L85 PathProgramCache]: Analyzing trace with hash 628087390, now seen corresponding path program 1 times [2024-11-24 02:05:57,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:57,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416561816] [2024-11-24 02:05:57,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:57,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:57,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:05:57,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416561816] [2024-11-24 02:05:57,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416561816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:05:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284845321] [2024-11-24 02:05:57,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:57,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:05:57,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:05:57,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:05:57,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:05:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:57,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 02:05:57,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:05:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:05:57,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:05:57,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284845321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:57,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:05:57,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 02:05:57,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395900509] [2024-11-24 02:05:57,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:57,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:05:57,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:57,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:05:57,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:05:57,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-24 02:05:57,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 43 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 02:05:57,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:05:57,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-24 02:05:57,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:05:57,904 INFO L124 PetriNetUnfolderBase]: 238/423 cut-off events. [2024-11-24 02:05:57,904 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-24 02:05:57,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 423 events. 238/423 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1831 event pairs, 142 based on Foata normal form. 2/285 useless extension candidates. Maximal degree in co-relation 791. Up to 358 conditions per place. [2024-11-24 02:05:57,911 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 22 selfloop transitions, 12 changer transitions 0/41 dead transitions. [2024-11-24 02:05:57,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 198 flow [2024-11-24 02:05:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:05:57,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 02:05:57,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2024-11-24 02:05:57,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3488372093023256 [2024-11-24 02:05:57,917 INFO L175 Difference]: Start difference. First operand has 42 places, 43 transitions, 138 flow. Second operand 6 states and 90 transitions. [2024-11-24 02:05:57,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 198 flow [2024-11-24 02:05:57,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 02:05:57,920 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 154 flow [2024-11-24 02:05:57,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2024-11-24 02:05:57,924 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-11-24 02:05:57,924 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 154 flow [2024-11-24 02:05:57,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 02:05:57,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:05:57,924 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-24 02:05:57,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 02:05:58,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:05:58,125 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:05:58,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:58,126 INFO L85 PathProgramCache]: Analyzing trace with hash -2004126821, now seen corresponding path program 1 times [2024-11-24 02:05:58,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:58,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501875715] [2024-11-24 02:05:58,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:58,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:05:58,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:58,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501875715] [2024-11-24 02:05:58,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501875715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:05:58,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581813391] [2024-11-24 02:05:58,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:58,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:05:58,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:05:58,351 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:05:58,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:05:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:58,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 02:05:58,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:05:58,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:05:58,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:05:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:05:58,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581813391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:05:58,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:05:58,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-24 02:05:58,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745052477] [2024-11-24 02:05:58,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:05:58,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 02:05:58,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:58,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 02:05:58,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:05:58,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-24 02:05:58,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 154 flow. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 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 02:05:58,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:05:58,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-24 02:05:58,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:05:58,884 INFO L124 PetriNetUnfolderBase]: 244/447 cut-off events. [2024-11-24 02:05:58,884 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-24 02:05:58,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 447 events. 244/447 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2010 event pairs, 142 based on Foata normal form. 6/312 useless extension candidates. Maximal degree in co-relation 793. Up to 369 conditions per place. [2024-11-24 02:05:58,890 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 27 selfloop transitions, 25 changer transitions 0/59 dead transitions. [2024-11-24 02:05:58,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 372 flow [2024-11-24 02:05:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 02:05:58,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 02:05:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 148 transitions. [2024-11-24 02:05:58,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34418604651162793 [2024-11-24 02:05:58,896 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 154 flow. Second operand 10 states and 148 transitions. [2024-11-24 02:05:58,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 372 flow [2024-11-24 02:05:58,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 314 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-24 02:05:58,901 INFO L231 Difference]: Finished difference. Result has 52 places, 59 transitions, 294 flow [2024-11-24 02:05:58,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2024-11-24 02:05:58,904 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2024-11-24 02:05:58,904 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 294 flow [2024-11-24 02:05:58,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 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 02:05:58,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:05:58,905 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:58,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 02:05:59,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:05:59,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:05:59,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:59,106 INFO L85 PathProgramCache]: Analyzing trace with hash -854904125, now seen corresponding path program 1 times [2024-11-24 02:05:59,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:59,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565697610] [2024-11-24 02:05:59,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:59,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:59,266 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 02:05:59,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:59,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565697610] [2024-11-24 02:05:59,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565697610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:59,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:59,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 02:05:59,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711367727] [2024-11-24 02:05:59,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:59,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:05:59,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:59,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:05:59,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:05:59,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-24 02:05:59,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 02:05:59,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:05:59,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-24 02:05:59,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:05:59,465 INFO L124 PetriNetUnfolderBase]: 302/581 cut-off events. [2024-11-24 02:05:59,465 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-24 02:05:59,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 581 events. 302/581 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2768 event pairs, 185 based on Foata normal form. 9/421 useless extension candidates. Maximal degree in co-relation 1156. Up to 384 conditions per place. [2024-11-24 02:05:59,469 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 72 selfloop transitions, 3 changer transitions 3/87 dead transitions. [2024-11-24 02:05:59,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 87 transitions, 583 flow [2024-11-24 02:05:59,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:05:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 02:05:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-11-24 02:05:59,471 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2024-11-24 02:05:59,471 INFO L175 Difference]: Start difference. First operand has 52 places, 59 transitions, 294 flow. Second operand 4 states and 101 transitions. [2024-11-24 02:05:59,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 87 transitions, 583 flow [2024-11-24 02:05:59,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 87 transitions, 549 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-24 02:05:59,477 INFO L231 Difference]: Finished difference. Result has 54 places, 59 transitions, 285 flow [2024-11-24 02:05:59,477 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=54, PETRI_TRANSITIONS=59} [2024-11-24 02:05:59,478 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2024-11-24 02:05:59,478 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 59 transitions, 285 flow [2024-11-24 02:05:59,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 02:05:59,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:05:59,480 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:59,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:05:59,480 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:05:59,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:59,480 INFO L85 PathProgramCache]: Analyzing trace with hash -854904092, now seen corresponding path program 1 times [2024-11-24 02:05:59,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:59,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940310640] [2024-11-24 02:05:59,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:59,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:59,596 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 02:05:59,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:59,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940310640] [2024-11-24 02:05:59,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940310640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:59,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:59,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 02:05:59,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917257210] [2024-11-24 02:05:59,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:59,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:05:59,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:59,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:05:59,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:05:59,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-24 02:05:59,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 02:05:59,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:05:59,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-24 02:05:59,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:05:59,758 INFO L124 PetriNetUnfolderBase]: 275/532 cut-off events. [2024-11-24 02:05:59,758 INFO L125 PetriNetUnfolderBase]: For 114/170 co-relation queries the response was YES. [2024-11-24 02:05:59,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 532 events. 275/532 cut-off events. For 114/170 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2559 event pairs, 164 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 1142. Up to 459 conditions per place. [2024-11-24 02:05:59,764 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 48 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2024-11-24 02:05:59,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 381 flow [2024-11-24 02:05:59,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:05:59,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 02:05:59,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-24 02:05:59,767 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2024-11-24 02:05:59,767 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 285 flow. Second operand 3 states and 65 transitions. [2024-11-24 02:05:59,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 381 flow [2024-11-24 02:05:59,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 58 transitions, 377 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-24 02:05:59,774 INFO L231 Difference]: Finished difference. Result has 54 places, 58 transitions, 281 flow [2024-11-24 02:05:59,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=54, PETRI_TRANSITIONS=58} [2024-11-24 02:05:59,775 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2024-11-24 02:05:59,775 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 58 transitions, 281 flow [2024-11-24 02:05:59,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 02:05:59,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:05:59,775 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:59,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:05:59,776 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:05:59,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:59,777 INFO L85 PathProgramCache]: Analyzing trace with hash -854904091, now seen corresponding path program 1 times [2024-11-24 02:05:59,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:59,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880037877] [2024-11-24 02:05:59,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:59,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:59,868 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 02:05:59,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:59,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880037877] [2024-11-24 02:05:59,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880037877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:59,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:59,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 02:05:59,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837560536] [2024-11-24 02:05:59,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:59,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:05:59,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:59,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:05:59,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:05:59,876 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-24 02:05:59,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 58 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 02:05:59,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:05:59,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-24 02:05:59,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:06:00,102 INFO L124 PetriNetUnfolderBase]: 431/785 cut-off events. [2024-11-24 02:06:00,103 INFO L125 PetriNetUnfolderBase]: For 133/181 co-relation queries the response was YES. [2024-11-24 02:06:00,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1845 conditions, 785 events. 431/785 cut-off events. For 133/181 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4100 event pairs, 124 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 1830. Up to 382 conditions per place. [2024-11-24 02:06:00,108 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 63 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-11-24 02:06:00,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 74 transitions, 454 flow [2024-11-24 02:06:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:06:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 02:06:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-11-24 02:06:00,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.627906976744186 [2024-11-24 02:06:00,109 INFO L175 Difference]: Start difference. First operand has 54 places, 58 transitions, 281 flow. Second operand 3 states and 81 transitions. [2024-11-24 02:06:00,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 74 transitions, 454 flow [2024-11-24 02:06:00,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 74 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 02:06:00,115 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 284 flow [2024-11-24 02:06:00,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2024-11-24 02:06:00,116 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2024-11-24 02:06:00,117 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 284 flow [2024-11-24 02:06:00,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 02:06:00,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:06:00,119 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:00,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:06:00,119 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:06:00,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:00,120 INFO L85 PathProgramCache]: Analyzing trace with hash -313103339, now seen corresponding path program 1 times [2024-11-24 02:06:00,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:00,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860186228] [2024-11-24 02:06:00,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:00,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:06:00,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:00,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860186228] [2024-11-24 02:06:00,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860186228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:06:00,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412118404] [2024-11-24 02:06:00,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:00,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:00,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:06:00,365 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:06:00,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 02:06:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:00,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 02:06:00,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:06:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:06:00,503 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:06:00,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412118404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:00,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:06:00,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2024-11-24 02:06:00,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466537946] [2024-11-24 02:06:00,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:00,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:06:00,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:00,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:06:00,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:06:00,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-24 02:06:00,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 02:06:00,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:06:00,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-24 02:06:00,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:06:00,709 INFO L124 PetriNetUnfolderBase]: 429/817 cut-off events. [2024-11-24 02:06:00,710 INFO L125 PetriNetUnfolderBase]: For 136/192 co-relation queries the response was YES. [2024-11-24 02:06:00,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1942 conditions, 817 events. 429/817 cut-off events. For 136/192 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4346 event pairs, 285 based on Foata normal form. 2/607 useless extension candidates. Maximal degree in co-relation 1926. Up to 712 conditions per place. [2024-11-24 02:06:00,715 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 43 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2024-11-24 02:06:00,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 378 flow [2024-11-24 02:06:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:06:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 02:06:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-24 02:06:00,717 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2024-11-24 02:06:00,717 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 284 flow. Second operand 3 states and 67 transitions. [2024-11-24 02:06:00,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 378 flow [2024-11-24 02:06:00,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 02:06:00,723 INFO L231 Difference]: Finished difference. Result has 56 places, 58 transitions, 290 flow [2024-11-24 02:06:00,723 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=56, PETRI_TRANSITIONS=58} [2024-11-24 02:06:00,725 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2024-11-24 02:06:00,725 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 58 transitions, 290 flow [2024-11-24 02:06:00,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 02:06:00,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:06:00,726 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:00,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 02:06:00,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-24 02:06:00,927 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:06:00,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:00,927 INFO L85 PathProgramCache]: Analyzing trace with hash -100895922, now seen corresponding path program 1 times [2024-11-24 02:06:00,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:00,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884368462] [2024-11-24 02:06:00,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:00,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:06:01,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:01,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884368462] [2024-11-24 02:06:01,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884368462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:06:01,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060283194] [2024-11-24 02:06:01,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:01,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:01,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:06:01,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:06:01,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 02:06:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:01,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:06:01,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:06:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 02:06:01,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:06:01,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060283194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:01,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:06:01,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-24 02:06:01,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820366834] [2024-11-24 02:06:01,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:01,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:06:01,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:01,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:06:01,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:06:01,273 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-24 02:06:01,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 58 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 02:06:01,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:06:01,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-24 02:06:01,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:06:01,423 INFO L124 PetriNetUnfolderBase]: 317/645 cut-off events. [2024-11-24 02:06:01,423 INFO L125 PetriNetUnfolderBase]: For 135/159 co-relation queries the response was YES. [2024-11-24 02:06:01,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 645 events. 317/645 cut-off events. For 135/159 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3303 event pairs, 216 based on Foata normal form. 0/531 useless extension candidates. Maximal degree in co-relation 1472. Up to 554 conditions per place. [2024-11-24 02:06:01,430 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 45 selfloop transitions, 1 changer transitions 1/56 dead transitions. [2024-11-24 02:06:01,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 56 transitions, 376 flow [2024-11-24 02:06:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:06:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 02:06:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-11-24 02:06:01,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49612403100775193 [2024-11-24 02:06:01,431 INFO L175 Difference]: Start difference. First operand has 56 places, 58 transitions, 290 flow. Second operand 3 states and 64 transitions. [2024-11-24 02:06:01,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 56 transitions, 376 flow [2024-11-24 02:06:01,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 02:06:01,436 INFO L231 Difference]: Finished difference. Result has 55 places, 55 transitions, 275 flow [2024-11-24 02:06:01,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=55, PETRI_TRANSITIONS=55} [2024-11-24 02:06:01,437 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2024-11-24 02:06:01,437 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 55 transitions, 275 flow [2024-11-24 02:06:01,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 02:06:01,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:06:01,438 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:01,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 02:06:01,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-24 02:06:01,642 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:06:01,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2014008739, now seen corresponding path program 1 times [2024-11-24 02:06:01,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:01,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832258101] [2024-11-24 02:06:01,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:01,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:01,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:06:01,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:01,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832258101] [2024-11-24 02:06:01,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832258101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:06:01,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262809712] [2024-11-24 02:06:01,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:01,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:01,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:06:01,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:06:01,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 02:06:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:01,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 02:06:01,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:06:02,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:06:02,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:06:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:06:02,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262809712] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:06:02,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:06:02,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 14 [2024-11-24 02:06:02,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221084758] [2024-11-24 02:06:02,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:06:02,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:06:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:02,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:06:02,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:06:02,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-24 02:06:02,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 275 flow. Second operand has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 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 02:06:02,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:06:02,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-24 02:06:02,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:06:02,940 INFO L124 PetriNetUnfolderBase]: 598/1106 cut-off events. [2024-11-24 02:06:02,940 INFO L125 PetriNetUnfolderBase]: For 192/220 co-relation queries the response was YES. [2024-11-24 02:06:02,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2566 conditions, 1106 events. 598/1106 cut-off events. For 192/220 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5876 event pairs, 140 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 2549. Up to 242 conditions per place. [2024-11-24 02:06:02,947 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 42 selfloop transitions, 28 changer transitions 42/119 dead transitions. [2024-11-24 02:06:02,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 119 transitions, 666 flow [2024-11-24 02:06:02,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:06:02,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-24 02:06:02,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 222 transitions. [2024-11-24 02:06:02,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3687707641196013 [2024-11-24 02:06:02,949 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 275 flow. Second operand 14 states and 222 transitions. [2024-11-24 02:06:02,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 119 transitions, 666 flow [2024-11-24 02:06:02,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 119 transitions, 665 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 02:06:02,953 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 337 flow [2024-11-24 02:06:02,953 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=337, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2024-11-24 02:06:02,954 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2024-11-24 02:06:02,954 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 337 flow [2024-11-24 02:06:02,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 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 02:06:02,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:06:02,954 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-24 02:06:02,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 02:06:03,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-24 02:06:03,159 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:06:03,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1028308681, now seen corresponding path program 2 times [2024-11-24 02:06:03,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:03,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677726586] [2024-11-24 02:06:03,160 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:06:03,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:03,173 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 02:06:03,173 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:06:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 02:06:03,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:03,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677726586] [2024-11-24 02:06:03,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677726586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:06:03,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567647942] [2024-11-24 02:06:03,219 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:06:03,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:03,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:06:03,221 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:06:03,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 02:06:03,296 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 02:06:03,296 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:06:03,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 02:06:03,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:06:03,334 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 02:06:03,334 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:06:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 02:06:03,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567647942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:06:03,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:06:03,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-24 02:06:03,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003442650] [2024-11-24 02:06:03,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:06:03,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:06:03,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:03,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:06:03,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:06:03,391 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-24 02:06:03,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 02:06:03,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:06:03,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-24 02:06:03,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:06:03,580 INFO L124 PetriNetUnfolderBase]: 395/776 cut-off events. [2024-11-24 02:06:03,581 INFO L125 PetriNetUnfolderBase]: For 330/352 co-relation queries the response was YES. [2024-11-24 02:06:03,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1970 conditions, 776 events. 395/776 cut-off events. For 330/352 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3868 event pairs, 274 based on Foata normal form. 1/678 useless extension candidates. Maximal degree in co-relation 1950. Up to 670 conditions per place. [2024-11-24 02:06:03,586 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 31 selfloop transitions, 16 changer transitions 0/54 dead transitions. [2024-11-24 02:06:03,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 421 flow [2024-11-24 02:06:03,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:06:03,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 02:06:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-11-24 02:06:03,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3488372093023256 [2024-11-24 02:06:03,588 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 337 flow. Second operand 4 states and 60 transitions. [2024-11-24 02:06:03,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 421 flow [2024-11-24 02:06:03,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 408 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-24 02:06:03,594 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 346 flow [2024-11-24 02:06:03,594 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=346, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2024-11-24 02:06:03,594 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 21 predicate places. [2024-11-24 02:06:03,594 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 346 flow [2024-11-24 02:06:03,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 02:06:03,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:06:03,597 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2024-11-24 02:06:03,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 02:06:03,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:03,801 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:06:03,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:03,802 INFO L85 PathProgramCache]: Analyzing trace with hash -796534179, now seen corresponding path program 1 times [2024-11-24 02:06:03,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:03,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780476306] [2024-11-24 02:06:03,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:03,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:06:04,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:04,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780476306] [2024-11-24 02:06:04,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780476306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:06:04,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756715079] [2024-11-24 02:06:04,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:04,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:04,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:06:04,030 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:06:04,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 02:06:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:04,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 02:06:04,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:06:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:06:04,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:06:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:06:04,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756715079] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:06:04,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:06:04,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-24 02:06:04,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192142520] [2024-11-24 02:06:04,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:06:04,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 02:06:04,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:04,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 02:06:04,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-11-24 02:06:04,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-24 02:06:04,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 346 flow. Second operand has 24 states, 24 states have (on average 10.083333333333334) internal successors, (242), 24 states have internal predecessors, (242), 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 02:06:04,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:06:04,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-24 02:06:04,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:06:04,841 INFO L124 PetriNetUnfolderBase]: 413/852 cut-off events. [2024-11-24 02:06:04,842 INFO L125 PetriNetUnfolderBase]: For 593/615 co-relation queries the response was YES. [2024-11-24 02:06:04,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 852 events. 413/852 cut-off events. For 593/615 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4322 event pairs, 274 based on Foata normal form. 12/763 useless extension candidates. Maximal degree in co-relation 2194. Up to 666 conditions per place. [2024-11-24 02:06:04,847 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 24 selfloop transitions, 59 changer transitions 0/90 dead transitions. [2024-11-24 02:06:04,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 836 flow [2024-11-24 02:06:04,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 02:06:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-24 02:06:04,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 285 transitions. [2024-11-24 02:06:04,849 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3012684989429176 [2024-11-24 02:06:04,849 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 346 flow. Second operand 22 states and 285 transitions. [2024-11-24 02:06:04,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 836 flow [2024-11-24 02:06:04,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 768 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-24 02:06:04,855 INFO L231 Difference]: Finished difference. Result has 86 places, 90 transitions, 766 flow [2024-11-24 02:06:04,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=766, PETRI_PLACES=86, PETRI_TRANSITIONS=90} [2024-11-24 02:06:04,855 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 45 predicate places. [2024-11-24 02:06:04,855 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 90 transitions, 766 flow [2024-11-24 02:06:04,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.083333333333334) internal successors, (242), 24 states have internal predecessors, (242), 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 02:06:04,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:06:04,856 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:04,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 02:06:05,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:05,056 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:06:05,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash -416467995, now seen corresponding path program 2 times [2024-11-24 02:06:05,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:05,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596245809] [2024-11-24 02:06:05,057 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:06:05,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:05,076 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 02:06:05,077 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:06:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 02:06:05,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:05,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596245809] [2024-11-24 02:06:05,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596245809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:06:05,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044076036] [2024-11-24 02:06:05,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:06:05,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:05,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:06:05,118 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:06:05,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 02:06:05,204 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 02:06:05,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:06:05,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:06:05,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:06:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 02:06:05,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:06:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 02:06:05,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044076036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:06:05,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:06:05,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-24 02:06:05,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052381013] [2024-11-24 02:06:05,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:06:05,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:06:05,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:05,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:06:05,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:06:05,286 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-24 02:06:05,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 90 transitions, 766 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 02:06:05,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:06:05,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-24 02:06:05,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:06:05,437 INFO L124 PetriNetUnfolderBase]: 391/802 cut-off events. [2024-11-24 02:06:05,437 INFO L125 PetriNetUnfolderBase]: For 641/661 co-relation queries the response was YES. [2024-11-24 02:06:05,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2180 conditions, 802 events. 391/802 cut-off events. For 641/661 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3914 event pairs, 220 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 2155. Up to 602 conditions per place. [2024-11-24 02:06:05,441 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 55 selfloop transitions, 1 changer transitions 37/96 dead transitions. [2024-11-24 02:06:05,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 96 transitions, 954 flow [2024-11-24 02:06:05,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:06:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 02:06:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-11-24 02:06:05,442 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47093023255813954 [2024-11-24 02:06:05,442 INFO L175 Difference]: Start difference. First operand has 86 places, 90 transitions, 766 flow. Second operand 4 states and 81 transitions. [2024-11-24 02:06:05,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 96 transitions, 954 flow [2024-11-24 02:06:05,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 96 transitions, 802 flow, removed 47 selfloop flow, removed 9 redundant places. [2024-11-24 02:06:05,450 INFO L231 Difference]: Finished difference. Result has 79 places, 59 transitions, 503 flow [2024-11-24 02:06:05,450 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=503, PETRI_PLACES=79, PETRI_TRANSITIONS=59} [2024-11-24 02:06:05,451 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 38 predicate places. [2024-11-24 02:06:05,451 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 59 transitions, 503 flow [2024-11-24 02:06:05,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 02:06:05,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:06:05,452 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1] [2024-11-24 02:06:05,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 02:06:05,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:05,652 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-24 02:06:05,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash 450107837, now seen corresponding path program 2 times [2024-11-24 02:06:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959175477] [2024-11-24 02:06:05,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:06:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:05,685 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:06:05,685 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:06:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 02:06:05,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:05,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959175477] [2024-11-24 02:06:05,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959175477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:06:05,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710066214] [2024-11-24 02:06:05,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:06:05,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:06:05,958 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:06:05,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 02:06:06,065 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:06:06,066 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:06:06,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 02:06:06,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:06:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 02:06:06,141 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:06:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 02:06:06,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710066214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:06:06,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:06:06,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-24 02:06:06,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417655297] [2024-11-24 02:06:06,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:06:06,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:06:06,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:06,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:06:06,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:06:06,243 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-24 02:06:06,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 59 transitions, 503 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 02:06:06,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:06:06,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-24 02:06:06,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:06:06,305 INFO L124 PetriNetUnfolderBase]: 12/111 cut-off events. [2024-11-24 02:06:06,305 INFO L125 PetriNetUnfolderBase]: For 315/315 co-relation queries the response was YES. [2024-11-24 02:06:06,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 111 events. 12/111 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 193 event pairs, 0 based on Foata normal form. 2/112 useless extension candidates. Maximal degree in co-relation 443. Up to 45 conditions per place. [2024-11-24 02:06:06,306 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2024-11-24 02:06:06,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 593 flow [2024-11-24 02:06:06,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:06:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 02:06:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2024-11-24 02:06:06,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25 [2024-11-24 02:06:06,307 INFO L175 Difference]: Start difference. First operand has 79 places, 59 transitions, 503 flow. Second operand 4 states and 43 transitions. [2024-11-24 02:06:06,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 593 flow [2024-11-24 02:06:06,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 58 transitions, 546 flow, removed 2 selfloop flow, removed 13 redundant places. [2024-11-24 02:06:06,311 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-11-24 02:06:06,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-11-24 02:06:06,311 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-11-24 02:06:06,311 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-11-24 02:06:06,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 02:06:06,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-24 02:06:06,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-24 02:06:06,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-24 02:06:06,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-24 02:06:06,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-24 02:06:06,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-24 02:06:06,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-24 02:06:06,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-24 02:06:06,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-24 02:06:06,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-24 02:06:06,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-11-24 02:06:06,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-11-24 02:06:06,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-24 02:06:06,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-24 02:06:06,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-24 02:06:06,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-24 02:06:06,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-24 02:06:06,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-24 02:06:06,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-24 02:06:06,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:06,522 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:06,527 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-24 02:06:06,527 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 02:06:06,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 02:06:06 BasicIcfg [2024-11-24 02:06:06,532 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 02:06:06,533 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:06:06,533 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:06:06,533 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:06:06,534 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:05:55" (3/4) ... [2024-11-24 02:06:06,535 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 02:06:06,538 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-24 02:06:06,538 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-24 02:06:06,543 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 133 nodes and edges [2024-11-24 02:06:06,543 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-24 02:06:06,543 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-24 02:06:06,544 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-24 02:06:06,629 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 02:06:06,630 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 02:06:06,630 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:06:06,631 INFO L158 Benchmark]: Toolchain (without parser) took 12246.12ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 90.9MB in the beginning and 70.3MB in the end (delta: 20.6MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. [2024-11-24 02:06:06,631 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:06:06,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.86ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 78.7MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:06:06,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.15ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 77.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:06:06,632 INFO L158 Benchmark]: Boogie Preprocessor took 53.94ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 74.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:06:06,633 INFO L158 Benchmark]: RCFGBuilder took 1159.23ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 72.5MB in the end (delta: 2.2MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-11-24 02:06:06,634 INFO L158 Benchmark]: TraceAbstraction took 10534.02ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 71.9MB in the beginning and 75.7MB in the end (delta: -3.8MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2024-11-24 02:06:06,635 INFO L158 Benchmark]: Witness Printer took 96.78ms. Allocated memory is still 176.2MB. Free memory was 75.7MB in the beginning and 70.3MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:06:06,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.86ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 78.7MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.15ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 77.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.94ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 74.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1159.23ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 72.5MB in the end (delta: 2.2MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * TraceAbstraction took 10534.02ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 71.9MB in the beginning and 75.7MB in the end (delta: -3.8MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. * Witness Printer took 96.78ms. Allocated memory is still 176.2MB. Free memory was 75.7MB in the beginning and 70.3MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 61 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.4s, OverallIterations: 13, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 675 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 612 mSDsluCounter, 214 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1271 IncrementalHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 15 mSDtfsCounter, 1271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 194 SyntacticMatches, 6 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=766occurred in iteration=11, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 307 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 1512 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1203 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 28 InterpolantComputations, 7 PerfectInterpolantSequences, 547/751 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-24 02:06:06,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139e9d91-9876-4f78-a4cc-2a460b2025a8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE