./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/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_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:13:05,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:13:05,725 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:13:05,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:13:05,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:13:05,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:13:05,763 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:13:05,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:13:05,764 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:13:05,764 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:13:05,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:13:05,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:13:05,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:13:05,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:13:05,766 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:13:05,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:13:05,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:13:05,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:13:05,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:13:05,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:13:05,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:13:05,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:13:05,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:13:05,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:13:05,768 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:13:05,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:13:05,769 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:13:05,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:13:05,769 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:13:05,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:05,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:05,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:05,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:05,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:13:05,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:05,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:05,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:05,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:05,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:13:05,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:13:05,771 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:13:05,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:13:05,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:13:05,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:13:05,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:13:05,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:13:05,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:13:05,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:13:05,772 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_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/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 ! call(reach_error())) ) 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 -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2024-11-28 02:13:06,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:13:06,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:13:06,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:13:06,132 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:13:06,133 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:13:06,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-28 02:13:09,128 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/data/c2d77b71b/0bb106deb3c64622af23123f358c970e/FLAG6e1fad4c7 [2024-11-28 02:13:09,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:13:09,496 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-28 02:13:09,512 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/data/c2d77b71b/0bb106deb3c64622af23123f358c970e/FLAG6e1fad4c7 [2024-11-28 02:13:09,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/data/c2d77b71b/0bb106deb3c64622af23123f358c970e [2024-11-28 02:13:09,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:13:09,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:13:09,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:09,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:13:09,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:13:09,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:09" (1/1) ... [2024-11-28 02:13:09,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c31ee22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:09, skipping insertion in model container [2024-11-28 02:13:09,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:09" (1/1) ... [2024-11-28 02:13:09,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:13:09,828 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-28 02:13:10,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:10,146 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:13:10,155 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-28 02:13:10,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:10,227 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:13:10,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10 WrapperNode [2024-11-28 02:13:10,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:10,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:10,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:13:10,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:13:10,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,266 INFO L138 Inliner]: procedures = 176, calls = 50, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-28 02:13:10,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:10,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:13:10,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:13:10,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:13:10,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,291 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 02:13:10,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,297 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:13:10,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:13:10,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:13:10,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:13:10,313 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (1/1) ... [2024-11-28 02:13:10,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:10,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:10,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:10,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:13:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:13:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:13:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 02:13:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 02:13:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 02:13:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 02:13:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 02:13:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 02:13:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 02:13:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 02:13:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:13:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:13:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:13:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:13:10,388 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 02:13:10,554 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:13:10,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:13:10,794 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:13:10,795 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:13:10,893 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:13:10,894 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:13:10,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:10 BoogieIcfgContainer [2024-11-28 02:13:10,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:13:10,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:13:10,896 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:13:10,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:13:10,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:13:09" (1/3) ... [2024-11-28 02:13:10,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d15db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:10, skipping insertion in model container [2024-11-28 02:13:10,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:10" (2/3) ... [2024-11-28 02:13:10,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d15db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:10, skipping insertion in model container [2024-11-28 02:13:10,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:10" (3/3) ... [2024-11-28 02:13:10,904 INFO L128 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-28 02:13:10,921 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:13:10,923 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 47 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:13:10,923 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:13:10,998 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:13:11,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 47 transitions, 110 flow [2024-11-28 02:13:11,113 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2024-11-28 02:13:11,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:13:11,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-11-28 02:13:11,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 47 transitions, 110 flow [2024-11-28 02:13:11,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 40 transitions, 92 flow [2024-11-28 02:13:11,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:13:11,157 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;@eda8ba8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:13:11,158 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-28 02:13:11,185 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:13:11,187 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-11-28 02:13:11,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:13:11,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:13:11,189 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:11,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 02:13:11,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:11,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1929637479, now seen corresponding path program 1 times [2024-11-28 02:13:11,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:11,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613509812] [2024-11-28 02:13:11,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:11,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:11,998 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 02:13:12,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:12,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613509812] [2024-11-28 02:13:12,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613509812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:12,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:12,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:12,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516101730] [2024-11-28 02:13:12,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:12,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:13:12,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:12,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:13:12,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:12,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 47 [2024-11-28 02:13:12,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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 02:13:12,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:13:12,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 47 [2024-11-28 02:13:12,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:13:13,048 INFO L124 PetriNetUnfolderBase]: 1692/3102 cut-off events. [2024-11-28 02:13:13,049 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-28 02:13:13,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5604 conditions, 3102 events. 1692/3102 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 21915 event pairs, 970 based on Foata normal form. 81/3043 useless extension candidates. Maximal degree in co-relation 5592. Up to 1893 conditions per place. [2024-11-28 02:13:13,085 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 28 selfloop transitions, 5 changer transitions 27/79 dead transitions. [2024-11-28 02:13:13,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 299 flow [2024-11-28 02:13:13,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:13:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:13:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 223 transitions. [2024-11-28 02:13:13,106 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6778115501519757 [2024-11-28 02:13:13,109 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 92 flow. Second operand 7 states and 223 transitions. [2024-11-28 02:13:13,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 299 flow [2024-11-28 02:13:13,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 79 transitions, 292 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 02:13:13,124 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 145 flow [2024-11-28 02:13:13,129 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=145, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2024-11-28 02:13:13,135 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2024-11-28 02:13:13,135 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 145 flow [2024-11-28 02:13:13,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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 02:13:13,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:13:13,136 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:13,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:13:13,137 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 02:13:13,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:13,138 INFO L85 PathProgramCache]: Analyzing trace with hash -320434648, now seen corresponding path program 1 times [2024-11-28 02:13:13,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:13,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368649324] [2024-11-28 02:13:13,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:13,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:13,544 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 02:13:13,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368649324] [2024-11-28 02:13:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368649324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:13,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:13,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:13,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856322658] [2024-11-28 02:13:13,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:13,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:13:13,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:13,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:13:13,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:13,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 47 [2024-11-28 02:13:13,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 145 flow. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 02:13:13,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:13:13,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 47 [2024-11-28 02:13:13,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:13:14,149 INFO L124 PetriNetUnfolderBase]: 1072/2138 cut-off events. [2024-11-28 02:13:14,149 INFO L125 PetriNetUnfolderBase]: For 1840/2012 co-relation queries the response was YES. [2024-11-28 02:13:14,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5372 conditions, 2138 events. 1072/2138 cut-off events. For 1840/2012 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 16093 event pairs, 394 based on Foata normal form. 78/2004 useless extension candidates. Maximal degree in co-relation 5357. Up to 712 conditions per place. [2024-11-28 02:13:14,177 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 21 selfloop transitions, 3 changer transitions 19/68 dead transitions. [2024-11-28 02:13:14,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 301 flow [2024-11-28 02:13:14,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:13:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:13:14,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 226 transitions. [2024-11-28 02:13:14,181 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6869300911854104 [2024-11-28 02:13:14,181 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 145 flow. Second operand 7 states and 226 transitions. [2024-11-28 02:13:14,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 301 flow [2024-11-28 02:13:14,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 68 transitions, 288 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-28 02:13:14,204 INFO L231 Difference]: Finished difference. Result has 64 places, 44 transitions, 155 flow [2024-11-28 02:13:14,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=155, PETRI_PLACES=64, PETRI_TRANSITIONS=44} [2024-11-28 02:13:14,206 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2024-11-28 02:13:14,207 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 44 transitions, 155 flow [2024-11-28 02:13:14,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 02:13:14,207 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:13:14,207 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:14,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:13:14,208 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 02:13:14,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:14,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1195022016, now seen corresponding path program 1 times [2024-11-28 02:13:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:14,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78656675] [2024-11-28 02:13:14,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:14,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:14,524 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 02:13:14,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:14,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78656675] [2024-11-28 02:13:14,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78656675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:14,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:14,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:14,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560921951] [2024-11-28 02:13:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:14,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:14,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:14,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:14,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:14,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 47 [2024-11-28 02:13:14,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 44 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 02:13:14,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:13:14,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 47 [2024-11-28 02:13:14,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:13:15,107 INFO L124 PetriNetUnfolderBase]: 1332/2589 cut-off events. [2024-11-28 02:13:15,108 INFO L125 PetriNetUnfolderBase]: For 2753/2964 co-relation queries the response was YES. [2024-11-28 02:13:15,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6493 conditions, 2589 events. 1332/2589 cut-off events. For 2753/2964 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 19688 event pairs, 420 based on Foata normal form. 75/2431 useless extension candidates. Maximal degree in co-relation 6474. Up to 539 conditions per place. [2024-11-28 02:13:15,129 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 27 selfloop transitions, 3 changer transitions 24/78 dead transitions. [2024-11-28 02:13:15,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 362 flow [2024-11-28 02:13:15,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:13:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 02:13:15,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 255 transitions. [2024-11-28 02:13:15,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6781914893617021 [2024-11-28 02:13:15,131 INFO L175 Difference]: Start difference. First operand has 64 places, 44 transitions, 155 flow. Second operand 8 states and 255 transitions. [2024-11-28 02:13:15,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 362 flow [2024-11-28 02:13:15,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 338 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-28 02:13:15,153 INFO L231 Difference]: Finished difference. Result has 67 places, 43 transitions, 158 flow [2024-11-28 02:13:15,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=158, PETRI_PLACES=67, PETRI_TRANSITIONS=43} [2024-11-28 02:13:15,154 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 14 predicate places. [2024-11-28 02:13:15,155 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 43 transitions, 158 flow [2024-11-28 02:13:15,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 02:13:15,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:13:15,156 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:15,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:13:15,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 02:13:15,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:15,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1848019215, now seen corresponding path program 1 times [2024-11-28 02:13:15,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:15,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214914364] [2024-11-28 02:13:15,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:15,409 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 02:13:15,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:15,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214914364] [2024-11-28 02:13:15,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214914364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:15,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:15,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:15,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189179690] [2024-11-28 02:13:15,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:15,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:13:15,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:15,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:13:15,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:13:15,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 47 [2024-11-28 02:13:15,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 43 transitions, 158 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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 02:13:15,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:13:15,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 47 [2024-11-28 02:13:15,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:13:15,923 INFO L124 PetriNetUnfolderBase]: 1394/2614 cut-off events. [2024-11-28 02:13:15,924 INFO L125 PetriNetUnfolderBase]: For 3930/3930 co-relation queries the response was YES. [2024-11-28 02:13:15,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7227 conditions, 2614 events. 1394/2614 cut-off events. For 3930/3930 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 18701 event pairs, 369 based on Foata normal form. 48/2556 useless extension candidates. Maximal degree in co-relation 7206. Up to 647 conditions per place. [2024-11-28 02:13:15,941 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 36 selfloop transitions, 3 changer transitions 34/91 dead transitions. [2024-11-28 02:13:15,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 91 transitions, 508 flow [2024-11-28 02:13:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:13:15,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 02:13:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 248 transitions. [2024-11-28 02:13:15,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-11-28 02:13:15,943 INFO L175 Difference]: Start difference. First operand has 67 places, 43 transitions, 158 flow. Second operand 8 states and 248 transitions. [2024-11-28 02:13:15,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 91 transitions, 508 flow [2024-11-28 02:13:15,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 91 transitions, 468 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-11-28 02:13:15,953 INFO L231 Difference]: Finished difference. Result has 68 places, 42 transitions, 156 flow [2024-11-28 02:13:15,953 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=156, PETRI_PLACES=68, PETRI_TRANSITIONS=42} [2024-11-28 02:13:15,954 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2024-11-28 02:13:15,954 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 42 transitions, 156 flow [2024-11-28 02:13:15,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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 02:13:15,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:13:15,954 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:15,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:13:15,955 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 02:13:15,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1390466308, now seen corresponding path program 1 times [2024-11-28 02:13:15,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:15,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957258147] [2024-11-28 02:13:15,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:15,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:16,230 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 02:13:16,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957258147] [2024-11-28 02:13:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957258147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:16,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:16,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:16,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009904837] [2024-11-28 02:13:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:16,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:16,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:16,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:16,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:16,262 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 47 [2024-11-28 02:13:16,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 42 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 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 02:13:16,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:13:16,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 47 [2024-11-28 02:13:16,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:13:16,571 INFO L124 PetriNetUnfolderBase]: 550/1152 cut-off events. [2024-11-28 02:13:16,571 INFO L125 PetriNetUnfolderBase]: For 1559/1559 co-relation queries the response was YES. [2024-11-28 02:13:16,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2973 conditions, 1152 events. 550/1152 cut-off events. For 1559/1559 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 7197 event pairs, 300 based on Foata normal form. 24/1111 useless extension candidates. Maximal degree in co-relation 2952. Up to 567 conditions per place. [2024-11-28 02:13:16,581 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 33 selfloop transitions, 3 changer transitions 19/74 dead transitions. [2024-11-28 02:13:16,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 385 flow [2024-11-28 02:13:16,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:13:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:13:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 217 transitions. [2024-11-28 02:13:16,583 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-11-28 02:13:16,583 INFO L175 Difference]: Start difference. First operand has 68 places, 42 transitions, 156 flow. Second operand 7 states and 217 transitions. [2024-11-28 02:13:16,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 385 flow [2024-11-28 02:13:16,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 74 transitions, 347 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-11-28 02:13:16,591 INFO L231 Difference]: Finished difference. Result has 67 places, 42 transitions, 151 flow [2024-11-28 02:13:16,592 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=151, PETRI_PLACES=67, PETRI_TRANSITIONS=42} [2024-11-28 02:13:16,593 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 14 predicate places. [2024-11-28 02:13:16,595 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 151 flow [2024-11-28 02:13:16,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 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 02:13:16,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:13:16,596 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:16,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:13:16,596 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 02:13:16,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:16,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1591661851, now seen corresponding path program 1 times [2024-11-28 02:13:16,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:16,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399757046] [2024-11-28 02:13:16,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:16,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:16,832 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 02:13:16,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:16,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399757046] [2024-11-28 02:13:16,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399757046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:16,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:16,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:16,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321225258] [2024-11-28 02:13:16,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:16,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:16,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:16,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:16,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:16,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 47 [2024-11-28 02:13:16,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 02:13:16,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:13:16,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 47 [2024-11-28 02:13:16,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:13:17,181 INFO L124 PetriNetUnfolderBase]: 674/1283 cut-off events. [2024-11-28 02:13:17,181 INFO L125 PetriNetUnfolderBase]: For 1256/1290 co-relation queries the response was YES. [2024-11-28 02:13:17,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3153 conditions, 1283 events. 674/1283 cut-off events. For 1256/1290 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8073 event pairs, 204 based on Foata normal form. 24/1215 useless extension candidates. Maximal degree in co-relation 3133. Up to 319 conditions per place. [2024-11-28 02:13:17,189 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 25 selfloop transitions, 3 changer transitions 25/74 dead transitions. [2024-11-28 02:13:17,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 352 flow [2024-11-28 02:13:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:13:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 02:13:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 253 transitions. [2024-11-28 02:13:17,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6728723404255319 [2024-11-28 02:13:17,191 INFO L175 Difference]: Start difference. First operand has 67 places, 42 transitions, 151 flow. Second operand 8 states and 253 transitions. [2024-11-28 02:13:17,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 352 flow [2024-11-28 02:13:17,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 74 transitions, 320 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-28 02:13:17,196 INFO L231 Difference]: Finished difference. Result has 70 places, 40 transitions, 146 flow [2024-11-28 02:13:17,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=146, PETRI_PLACES=70, PETRI_TRANSITIONS=40} [2024-11-28 02:13:17,197 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 17 predicate places. [2024-11-28 02:13:17,197 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 40 transitions, 146 flow [2024-11-28 02:13:17,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 02:13:17,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:13:17,198 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:17,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:13:17,198 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 02:13:17,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1740468603, now seen corresponding path program 1 times [2024-11-28 02:13:17,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:17,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63854454] [2024-11-28 02:13:17,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:17,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:17,423 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 02:13:17,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:17,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63854454] [2024-11-28 02:13:17,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63854454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:17,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:17,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:17,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978446716] [2024-11-28 02:13:17,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:17,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:17,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:17,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:17,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:17,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 47 [2024-11-28 02:13:17,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 40 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 02:13:17,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:13:17,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 47 [2024-11-28 02:13:17,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:13:17,680 INFO L124 PetriNetUnfolderBase]: 253/534 cut-off events. [2024-11-28 02:13:17,681 INFO L125 PetriNetUnfolderBase]: For 511/523 co-relation queries the response was YES. [2024-11-28 02:13:17,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 534 events. 253/534 cut-off events. For 511/523 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2771 event pairs, 45 based on Foata normal form. 24/531 useless extension candidates. Maximal degree in co-relation 1183. Up to 152 conditions per place. [2024-11-28 02:13:17,683 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2024-11-28 02:13:17,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 61 transitions, 280 flow [2024-11-28 02:13:17,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:13:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 02:13:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 243 transitions. [2024-11-28 02:13:17,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6462765957446809 [2024-11-28 02:13:17,687 INFO L175 Difference]: Start difference. First operand has 70 places, 40 transitions, 146 flow. Second operand 8 states and 243 transitions. [2024-11-28 02:13:17,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 61 transitions, 280 flow [2024-11-28 02:13:17,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 224 flow, removed 21 selfloop flow, removed 11 redundant places. [2024-11-28 02:13:17,689 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-28 02:13:17,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-28 02:13:17,690 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2024-11-28 02:13:17,692 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-28 02:13:17,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 02:13:17,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-28 02:13:17,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-11-28 02:13:17,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-28 02:13:17,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-28 02:13:17,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-28 02:13:17,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:13:17,697 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:17,700 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:13:17,701 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:13:17,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:13:17 BasicIcfg [2024-11-28 02:13:17,709 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:13:17,710 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:13:17,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:13:17,710 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:13:17,711 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:10" (3/4) ... [2024-11-28 02:13:17,713 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:13:17,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-28 02:13:17,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-28 02:13:17,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-28 02:13:17,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-28 02:13:17,720 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-28 02:13:17,721 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 02:13:17,721 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 02:13:17,721 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:13:17,804 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:13:17,804 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:13:17,804 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:13:17,805 INFO L158 Benchmark]: Toolchain (without parser) took 8263.95ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.2MB in the beginning and 275.1MB in the end (delta: -181.9MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2024-11-28 02:13:17,806 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:17,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 682.77ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 72.4MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:13:17,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.21ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 70.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:13:17,807 INFO L158 Benchmark]: Boogie Preprocessor took 39.49ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 68.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:17,808 INFO L158 Benchmark]: RCFGBuilder took 586.72ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 49.3MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:13:17,809 INFO L158 Benchmark]: TraceAbstraction took 6812.83ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 48.7MB in the beginning and 279.9MB in the end (delta: -231.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-11-28 02:13:17,809 INFO L158 Benchmark]: Witness Printer took 94.90ms. Allocated memory is still 352.3MB. Free memory was 278.7MB in the beginning and 275.1MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:13:17,813 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 682.77ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 72.4MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.21ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 70.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.49ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 68.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 586.72ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 49.3MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6812.83ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 48.7MB in the beginning and 279.9MB in the end (delta: -231.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 94.90ms. Allocated memory is still 352.3MB. Free memory was 278.7MB in the beginning and 275.1MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 5 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: 6.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 357 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 203 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 146 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 727 IncrementalHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 57 mSDtfsCounter, 727 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=3, InterpolantAutomatonStates: 53, 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, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 02:13:17,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae37fc9-f8ba-438e-8987-353ebcbdcc0a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE