./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB --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 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:38:34,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:38:34,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:38:34,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:38:34,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:38:34,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:38:34,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:38:34,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:38:34,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:38:34,418 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:38:34,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:38:34,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:38:34,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:38:34,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:38:34,420 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:38:34,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:38:34,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:38:34,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:38:34,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:38:34,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:38:34,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:38:34,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:38:34,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:38:34,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:38:34,421 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:38:34,421 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:38:34,422 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:38:34,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:38:34,422 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:38:34,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:38:34,422 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:38:34,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:38:34,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:38:34,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:38:34,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:34,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:38:34,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:38:34,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:38:34,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:38:34,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:34,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:38:34,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:38:34,424 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:38:34,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:38:34,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:38:34,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:38:34,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:38:34,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:38:34,425 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:38:34,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:38:34,425 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_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce [2024-11-28 02:38:34,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:38:34,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:38:34,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:38:34,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:38:34,749 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:38:34,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2024-11-28 02:38:37,854 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/data/0d57a1f51/12d61dd5e4ab42cbbccce6ce03429807/FLAG61a9f96f7 [2024-11-28 02:38:38,299 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:38:38,303 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2024-11-28 02:38:38,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/data/0d57a1f51/12d61dd5e4ab42cbbccce6ce03429807/FLAG61a9f96f7 [2024-11-28 02:38:38,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/data/0d57a1f51/12d61dd5e4ab42cbbccce6ce03429807 [2024-11-28 02:38:38,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:38:38,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:38:38,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:38:38,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:38:38,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:38:38,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:38,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae3f2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38, skipping insertion in model container [2024-11-28 02:38:38,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:38,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:38:38,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:38:38,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:38:38,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:38:38,914 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:38:38,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38 WrapperNode [2024-11-28 02:38:38,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:38:38,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:38:38,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:38:38,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:38:38,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:38,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:38,965 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 118 [2024-11-28 02:38:38,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:38:38,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:38:38,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:38:38,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:38:38,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:38,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:38,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:38,998 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:38:38,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:38,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:39,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:39,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:39,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:39,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:39,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:39,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:38:39,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:38:39,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:38:39,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:38:39,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (1/1) ... [2024-11-28 02:38:39,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:39,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:38:39,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:38:39,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:38:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:38:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 02:38:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 02:38:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 02:38:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 02:38:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:38:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:38:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:38:39,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:38:39,090 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:38:39,211 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:38:39,212 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:38:39,531 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:38:39,532 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:38:39,861 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:38:39,862 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:38:39,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:39 BoogieIcfgContainer [2024-11-28 02:38:39,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:38:39,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:38:39,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:38:39,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:38:39,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:38:38" (1/3) ... [2024-11-28 02:38:39,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31018b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:38:39, skipping insertion in model container [2024-11-28 02:38:39,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:38" (2/3) ... [2024-11-28 02:38:39,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31018b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:38:39, skipping insertion in model container [2024-11-28 02:38:39,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:39" (3/3) ... [2024-11-28 02:38:39,879 INFO L128 eAbstractionObserver]: Analyzing ICFG mix034_pso.opt_tso.opt.i [2024-11-28 02:38:39,895 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:38:39,896 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix034_pso.opt_tso.opt.i that has 3 procedures, 31 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 02:38:39,897 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:38:39,972 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:38:40,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2024-11-28 02:38:40,063 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-28 02:38:40,065 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:38:40,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-28 02:38:40,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow [2024-11-28 02:38:40,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 62 flow [2024-11-28 02:38:40,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:38:40,110 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;@6588a924, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:38:40,111 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-28 02:38:40,121 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:38:40,122 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-28 02:38:40,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:38:40,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:40,124 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:40,125 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 02:38:40,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:40,131 INFO L85 PathProgramCache]: Analyzing trace with hash -218844813, now seen corresponding path program 1 times [2024-11-28 02:38:40,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:40,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191501097] [2024-11-28 02:38:40,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:40,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:38:40,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:40,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191501097] [2024-11-28 02:38:40,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191501097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:40,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:40,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:38:40,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204636649] [2024-11-28 02:38:40,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:40,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:38:40,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:40,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:38:40,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:38:40,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-28 02:38:40,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-28 02:38:40,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:40,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-28 02:38:40,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:40,839 INFO L124 PetriNetUnfolderBase]: 194/366 cut-off events. [2024-11-28 02:38:40,839 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 02:38:40,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 366 events. 194/366 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1711 event pairs, 62 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 713. Up to 277 conditions per place. [2024-11-28 02:38:40,846 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 25 selfloop transitions, 3 changer transitions 2/39 dead transitions. [2024-11-28 02:38:40,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 147 flow [2024-11-28 02:38:40,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:38:40,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:38:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-28 02:38:40,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7444444444444445 [2024-11-28 02:38:40,863 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 67 transitions. [2024-11-28 02:38:40,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 147 flow [2024-11-28 02:38:40,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:38:40,871 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow [2024-11-28 02:38:40,874 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-28 02:38:40,878 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-28 02:38:40,878 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow [2024-11-28 02:38:40,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-28 02:38:40,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:40,879 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:40,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:38:40,879 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 02:38:40,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:40,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1931350451, now seen corresponding path program 1 times [2024-11-28 02:38:40,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:40,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940305993] [2024-11-28 02:38:40,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:40,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:38:41,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:41,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940305993] [2024-11-28 02:38:41,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940305993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:41,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:41,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:38:41,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973423340] [2024-11-28 02:38:41,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:41,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:38:41,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:41,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:38:41,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:38:41,165 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-28 02:38:41,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-28 02:38:41,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:41,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-28 02:38:41,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:41,405 INFO L124 PetriNetUnfolderBase]: 132/264 cut-off events. [2024-11-28 02:38:41,405 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-28 02:38:41,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 264 events. 132/264 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1222 event pairs, 42 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 583. Up to 174 conditions per place. [2024-11-28 02:38:41,412 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 23 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2024-11-28 02:38:41,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 141 flow [2024-11-28 02:38:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:38:41,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:38:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-11-28 02:38:41,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-28 02:38:41,417 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 72 transitions. [2024-11-28 02:38:41,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 141 flow [2024-11-28 02:38:41,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:38:41,419 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 72 flow [2024-11-28 02:38:41,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-11-28 02:38:41,421 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-28 02:38:41,421 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 72 flow [2024-11-28 02:38:41,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-28 02:38:41,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:41,422 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:41,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:38:41,422 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 02:38:41,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:41,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2050844016, now seen corresponding path program 1 times [2024-11-28 02:38:41,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:41,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028451121] [2024-11-28 02:38:41,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:41,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:41,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:38:41,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:41,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028451121] [2024-11-28 02:38:41,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028451121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:41,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:41,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:38:41,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474414004] [2024-11-28 02:38:41,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:41,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:38:41,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:41,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:38:41,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:38:41,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-28 02:38:41,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-28 02:38:41,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:41,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-28 02:38:41,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:41,790 INFO L124 PetriNetUnfolderBase]: 106/218 cut-off events. [2024-11-28 02:38:41,790 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-28 02:38:41,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 218 events. 106/218 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1021 event pairs, 32 based on Foata normal form. 20/230 useless extension candidates. Maximal degree in co-relation 471. Up to 128 conditions per place. [2024-11-28 02:38:41,793 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2024-11-28 02:38:41,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 132 flow [2024-11-28 02:38:41,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:38:41,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:38:41,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-11-28 02:38:41,796 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-28 02:38:41,796 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 72 flow. Second operand 4 states and 70 transitions. [2024-11-28 02:38:41,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 132 flow [2024-11-28 02:38:41,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 125 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:38:41,798 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-11-28 02:38:41,798 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-11-28 02:38:41,798 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2024-11-28 02:38:41,798 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-11-28 02:38:41,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-28 02:38:41,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-28 02:38:41,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-28 02:38:41,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-28 02:38:41,807 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-28 02:38:41,807 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-28 02:38:41,807 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-28 02:38:41,807 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-28 02:38:41,807 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-28 02:38:41,807 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-28 02:38:41,808 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-28 02:38:41,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:38:41,808 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 02:38:41,814 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:38:41,814 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:38:41,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:38:41 BasicIcfg [2024-11-28 02:38:41,821 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:38:41,822 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:38:41,822 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:38:41,822 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:38:41,824 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:39" (3/4) ... [2024-11-28 02:38:41,826 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:38:41,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-28 02:38:41,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-28 02:38:41,836 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2024-11-28 02:38:41,837 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-28 02:38:41,837 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:38:41,837 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 02:38:41,926 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:38:41,926 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:38:41,926 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:38:41,928 INFO L158 Benchmark]: Toolchain (without parser) took 3577.15ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.1MB in the beginning and 196.4MB in the end (delta: -104.4MB). Peak memory consumption was 132.8MB. Max. memory is 16.1GB. [2024-11-28 02:38:41,929 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:41,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.17ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 69.5MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:38:41,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.37ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 67.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:41,930 INFO L158 Benchmark]: Boogie Preprocessor took 48.95ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 64.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:41,934 INFO L158 Benchmark]: RCFGBuilder took 848.22ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 74.6MB in the end (delta: -10.0MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-11-28 02:38:41,934 INFO L158 Benchmark]: TraceAbstraction took 1955.01ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 74.4MB in the beginning and 200.8MB in the end (delta: -126.4MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. [2024-11-28 02:38:41,934 INFO L158 Benchmark]: Witness Printer took 104.53ms. Allocated memory is still 352.3MB. Free memory was 200.8MB in the beginning and 196.4MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:38:41,936 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.17ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 69.5MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.37ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 67.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.95ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 64.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 848.22ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 74.6MB in the end (delta: -10.0MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1955.01ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 74.4MB in the beginning and 200.8MB in the end (delta: -126.4MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. * Witness Printer took 104.53ms. Allocated memory is still 352.3MB. Free memory was 200.8MB in the beginning and 196.4MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: 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, 53 locations, 10 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: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 02:38:41,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0a3f3-eb2e-4f82-81cc-15a6272850c9/bin/uautomizer-verify-aQ6SnzHsRB/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