./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd --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 9047d35108a9c07c04b519cba211a741bb80887623b2a85c45105c17ca835121 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:30:36,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:30:36,113 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 15:30:36,119 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:30:36,119 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:30:36,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:30:36,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:30:36,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:30:36,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:30:36,143 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:30:36,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:30:36,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:30:36,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:30:36,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:30:36,144 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:30:36,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:30:36,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:30:36,144 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:30:36,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:30:36,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:30:36,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:30:36,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:30:36,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:30:36,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:30:36,147 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_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd 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 -> 9047d35108a9c07c04b519cba211a741bb80887623b2a85c45105c17ca835121 [2024-11-13 15:30:36,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:30:36,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:30:36,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:30:36,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:30:36,510 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:30:36,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i Unable to find full path for "g++" [2024-11-13 15:30:38,640 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:30:38,980 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:30:38,981 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i [2024-11-13 15:30:38,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/data/119546182/cf6831208c644d86b88ec643654a7e30/FLAG95371ea87 [2024-11-13 15:30:39,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/data/119546182/cf6831208c644d86b88ec643654a7e30 [2024-11-13 15:30:39,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:30:39,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:30:39,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:30:39,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:30:39,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:30:39,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f8c89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39, skipping insertion in model container [2024-11-13 15:30:39,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:30:39,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:30:39,656 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:30:39,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:30:39,814 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:30:39,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39 WrapperNode [2024-11-13 15:30:39,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:30:39,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:30:39,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:30:39,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:30:39,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,868 INFO L138 Inliner]: procedures = 175, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 126 [2024-11-13 15:30:39,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:30:39,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:30:39,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:30:39,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:30:39,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,932 INFO L175 MemorySlicer]: Split 19 memory accesses to 2 slices as follows [2, 17]. 89 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 7 writes are split as follows [0, 7]. [2024-11-13 15:30:39,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:30:39,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:30:39,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:30:39,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:30:39,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (1/1) ... [2024-11-13 15:30:39,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:30:39,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:30:40,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:30:40,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:30:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:30:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 15:30:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:30:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 15:30:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 15:30:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:30:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 15:30:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 15:30:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 15:30:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 15:30:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 15:30:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 15:30:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:30:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:30:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 15:30:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:30:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:30:40,042 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:30:40,209 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:30:40,211 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:30:40,850 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:30:40,853 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:30:41,311 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:30:41,313 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:30:41,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:30:41 BoogieIcfgContainer [2024-11-13 15:30:41,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:30:41,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:30:41,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:30:41,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:30:41,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:30:39" (1/3) ... [2024-11-13 15:30:41,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28667efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:30:41, skipping insertion in model container [2024-11-13 15:30:41,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:39" (2/3) ... [2024-11-13 15:30:41,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28667efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:30:41, skipping insertion in model container [2024-11-13 15:30:41,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:30:41" (3/3) ... [2024-11-13 15:30:41,328 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_rmo.opt.i [2024-11-13 15:30:41,350 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:30:41,354 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe009_rmo.opt.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-13 15:30:41,354 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:30:41,502 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:30:41,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 88 flow [2024-11-13 15:30:41,579 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2024-11-13 15:30:41,584 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:30:41,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 84 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 15:30:41,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 38 transitions, 88 flow [2024-11-13 15:30:41,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2024-11-13 15:30:41,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:30:41,630 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;@127e5885, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:30:41,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-13 15:30:41,647 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:30:41,647 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-13 15:30:41,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:30:41,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:30:41,649 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:41,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 15:30:41,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:41,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1864863225, now seen corresponding path program 1 times [2024-11-13 15:30:41,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:41,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910657724] [2024-11-13 15:30:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:41,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:30:42,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:42,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910657724] [2024-11-13 15:30:42,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910657724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:42,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:42,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 15:30:42,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565314543] [2024-11-13 15:30:42,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:42,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:30:42,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:30:42,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:30:42,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-13 15:30:42,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-13 15:30:42,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:30:42,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-13 15:30:42,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:30:43,465 INFO L124 PetriNetUnfolderBase]: 2919/4310 cut-off events. [2024-11-13 15:30:43,466 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-13 15:30:43,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8661 conditions, 4310 events. 2919/4310 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 24144 event pairs, 1013 based on Foata normal form. 0/3455 useless extension candidates. Maximal degree in co-relation 8650. Up to 3927 conditions per place. [2024-11-13 15:30:43,509 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 41 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2024-11-13 15:30:43,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 52 transitions, 209 flow [2024-11-13 15:30:43,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:30:43,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:30:43,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-11-13 15:30:43,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7105263157894737 [2024-11-13 15:30:43,530 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 81 transitions. [2024-11-13 15:30:43,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 52 transitions, 209 flow [2024-11-13 15:30:43,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 52 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:30:43,547 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 112 flow [2024-11-13 15:30:43,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-11-13 15:30:43,555 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2024-11-13 15:30:43,556 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 112 flow [2024-11-13 15:30:43,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-13 15:30:43,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:30:43,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:43,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:30:43,557 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 15:30:43,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash -961992715, now seen corresponding path program 1 times [2024-11-13 15:30:43,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:43,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271459158] [2024-11-13 15:30:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:43,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:30:44,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:44,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271459158] [2024-11-13 15:30:44,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271459158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:44,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:44,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:30:44,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111639695] [2024-11-13 15:30:44,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:44,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:30:44,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:44,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:30:44,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:44,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-13 15:30:44,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2024-11-13 15:30:44,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:30:44,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-13 15:30:44,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:30:44,825 INFO L124 PetriNetUnfolderBase]: 2075/3086 cut-off events. [2024-11-13 15:30:44,826 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2024-11-13 15:30:44,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7173 conditions, 3086 events. 2075/3086 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 16828 event pairs, 643 based on Foata normal form. 0/2720 useless extension candidates. Maximal degree in co-relation 7162. Up to 2702 conditions per place. [2024-11-13 15:30:44,849 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 38 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-11-13 15:30:44,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 49 transitions, 216 flow [2024-11-13 15:30:44,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:30:44,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:30:44,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-13 15:30:44,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5592105263157895 [2024-11-13 15:30:44,853 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 112 flow. Second operand 4 states and 85 transitions. [2024-11-13 15:30:44,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 49 transitions, 216 flow [2024-11-13 15:30:44,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:30:44,858 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 104 flow [2024-11-13 15:30:44,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-11-13 15:30:44,859 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2024-11-13 15:30:44,859 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 104 flow [2024-11-13 15:30:44,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2024-11-13 15:30:44,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:30:44,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:44,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:30:44,860 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 15:30:44,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:44,860 INFO L85 PathProgramCache]: Analyzing trace with hash -961992714, now seen corresponding path program 1 times [2024-11-13 15:30:44,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:44,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074716715] [2024-11-13 15:30:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:44,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:30:45,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:45,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074716715] [2024-11-13 15:30:45,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074716715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:45,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:45,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:30:45,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527526696] [2024-11-13 15:30:45,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:45,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:30:45,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:45,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:30:45,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:45,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-13 15:30:45,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2024-11-13 15:30:45,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:30:45,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-13 15:30:45,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:30:45,954 INFO L124 PetriNetUnfolderBase]: 1531/2306 cut-off events. [2024-11-13 15:30:45,955 INFO L125 PetriNetUnfolderBase]: For 518/518 co-relation queries the response was YES. [2024-11-13 15:30:45,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5262 conditions, 2306 events. 1531/2306 cut-off events. For 518/518 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 12145 event pairs, 269 based on Foata normal form. 0/2214 useless extension candidates. Maximal degree in co-relation 5250. Up to 1077 conditions per place. [2024-11-13 15:30:45,969 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 50 selfloop transitions, 7 changer transitions 3/67 dead transitions. [2024-11-13 15:30:45,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 67 transitions, 300 flow [2024-11-13 15:30:45,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:30:45,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:30:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-13 15:30:45,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6776315789473685 [2024-11-13 15:30:45,971 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 104 flow. Second operand 4 states and 103 transitions. [2024-11-13 15:30:45,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 67 transitions, 300 flow [2024-11-13 15:30:45,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 67 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:30:45,974 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 125 flow [2024-11-13 15:30:45,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2024-11-13 15:30:45,975 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2024-11-13 15:30:45,975 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 125 flow [2024-11-13 15:30:45,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2024-11-13 15:30:45,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:30:45,975 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:45,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:30:45,975 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 15:30:45,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:45,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1112795387, now seen corresponding path program 1 times [2024-11-13 15:30:45,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:45,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274337322] [2024-11-13 15:30:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:30:46,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:46,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274337322] [2024-11-13 15:30:46,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274337322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:46,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:46,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:30:46,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059529953] [2024-11-13 15:30:46,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:46,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:30:46,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:46,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:30:46,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:30:46,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-13 15:30:46,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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) [2024-11-13 15:30:46,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:30:46,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-13 15:30:46,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:30:46,839 INFO L124 PetriNetUnfolderBase]: 1263/1918 cut-off events. [2024-11-13 15:30:46,839 INFO L125 PetriNetUnfolderBase]: For 1191/1191 co-relation queries the response was YES. [2024-11-13 15:30:46,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4883 conditions, 1918 events. 1263/1918 cut-off events. For 1191/1191 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10383 event pairs, 209 based on Foata normal form. 72/1970 useless extension candidates. Maximal degree in co-relation 4870. Up to 846 conditions per place. [2024-11-13 15:30:46,846 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2024-11-13 15:30:46,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 61 transitions, 279 flow [2024-11-13 15:30:46,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:30:46,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 15:30:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-13 15:30:46,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5631578947368421 [2024-11-13 15:30:46,850 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 125 flow. Second operand 5 states and 107 transitions. [2024-11-13 15:30:46,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 61 transitions, 279 flow [2024-11-13 15:30:46,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 61 transitions, 255 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-13 15:30:46,853 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-11-13 15:30:46,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2024-11-13 15:30:46,854 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-11-13 15:30:46,854 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-11-13 15:30:46,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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) [2024-11-13 15:30:46,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-13 15:30:46,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-13 15:30:46,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-13 15:30:46,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-13 15:30:46,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-13 15:30:46,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-13 15:30:46,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-13 15:30:46,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-13 15:30:46,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-13 15:30:46,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-13 15:30:46,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-13 15:30:46,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-13 15:30:46,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-13 15:30:46,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-13 15:30:46,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-13 15:30:46,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:30:46,863 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 15:30:46,869 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 15:30:46,869 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:30:46,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:30:46 BasicIcfg [2024-11-13 15:30:46,877 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:30:46,878 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:30:46,878 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:30:46,878 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:30:46,879 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:30:41" (3/4) ... [2024-11-13 15:30:46,881 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:30:46,884 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-13 15:30:46,884 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-13 15:30:46,884 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-13 15:30:46,891 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-13 15:30:46,891 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 15:30:46,891 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 15:30:46,892 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 15:30:46,985 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:30:46,985 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:30:46,985 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:30:46,987 INFO L158 Benchmark]: Toolchain (without parser) took 7966.60ms. Allocated memory was 117.4MB in the beginning and 360.7MB in the end (delta: 243.3MB). Free memory was 91.2MB in the beginning and 177.7MB in the end (delta: -86.5MB). Peak memory consumption was 158.3MB. Max. memory is 16.1GB. [2024-11-13 15:30:46,988 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:30:46,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 794.55ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 67.7MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:30:46,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.36ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 65.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:30:46,989 INFO L158 Benchmark]: Boogie Preprocessor took 98.49ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 62.2MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:30:46,990 INFO L158 Benchmark]: RCFGBuilder took 1345.52ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 35.7MB in the end (delta: 26.5MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-11-13 15:30:46,991 INFO L158 Benchmark]: TraceAbstraction took 5560.34ms. Allocated memory was 117.4MB in the beginning and 360.7MB in the end (delta: 243.3MB). Free memory was 35.2MB in the beginning and 182.3MB in the end (delta: -147.1MB). Peak memory consumption was 183.7MB. Max. memory is 16.1GB. [2024-11-13 15:30:46,991 INFO L158 Benchmark]: Witness Printer took 107.66ms. Allocated memory is still 360.7MB. Free memory was 182.3MB in the beginning and 177.7MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:30:46,993 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 794.55ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 67.7MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.36ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 65.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 98.49ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 62.2MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1345.52ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 35.7MB in the end (delta: 26.5MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5560.34ms. Allocated memory was 117.4MB in the beginning and 360.7MB in the end (delta: 243.3MB). Free memory was 35.2MB in the beginning and 182.3MB in the end (delta: -147.1MB). Peak memory consumption was 183.7MB. Max. memory is 16.1GB. * Witness Printer took 107.66ms. Allocated memory is still 360.7MB. Free memory was 182.3MB in the beginning and 177.7MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: 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 7 procedures, 68 locations, 15 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: 5.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 16, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 15:30:47,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77205d2-2de9-492a-a975-8e9672007a59/bin/uautomizer-verify-qhAvR1uOyd/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