./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe001_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU --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 d13e05ad1104a4a5317ff09857a34619cbd86966f0892caf9775309ccc15230d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:07,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:07,134 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:04:07,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:07,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:07,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:07,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:07,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:07,169 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:07,169 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:07,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:07,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:07,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:07,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:07,183 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:07,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:07,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:07,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:07,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:07,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:07,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:07,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:07,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:07,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:07,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:07,191 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:07,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:07,192 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:07,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:07,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:07,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:07,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:07,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:07,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:07,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:07,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:07,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:07,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:07,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:07,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:07,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:07,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:07,204 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13e05ad1104a4a5317ff09857a34619cbd86966f0892caf9775309ccc15230d [2024-10-31 22:04:07,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:07,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:07,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:07,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:07,569 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:07,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe001_tso.i Unable to find full path for "g++" [2024-10-31 22:04:09,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:09,879 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:09,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/sv-benchmarks/c/pthread-wmm/safe001_tso.i [2024-10-31 22:04:09,894 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/data/83a85fa75/32fb3d50195b41dfb58fca66f57b57c8/FLAGbccf8d6a7 [2024-10-31 22:04:09,910 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/data/83a85fa75/32fb3d50195b41dfb58fca66f57b57c8 [2024-10-31 22:04:09,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:09,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:09,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:09,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:09,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:09,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:09" (1/1) ... [2024-10-31 22:04:09,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527b824f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:09, skipping insertion in model container [2024-10-31 22:04:09,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:09" (1/1) ... [2024-10-31 22:04:10,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:10,234 WARN L251 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_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/sv-benchmarks/c/pthread-wmm/safe001_tso.i[945,958] [2024-10-31 22:04:10,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:10,465 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:10,480 WARN L251 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_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/sv-benchmarks/c/pthread-wmm/safe001_tso.i[945,958] [2024-10-31 22:04:10,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:10,582 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:10,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10 WrapperNode [2024-10-31 22:04:10,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:10,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:10,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:10,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:10,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,645 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-10-31 22:04:10,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:10,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:10,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:10,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:10,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,696 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]. [2024-10-31 22:04:10,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:10,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:10,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:10,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:10,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (1/1) ... [2024-10-31 22:04:10,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:10,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:04:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:04:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:04:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:04:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:04:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:04:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:04:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:04:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:04:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:10,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:10,807 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:04:11,044 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:11,047 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:11,200 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:04:11,201 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:11,333 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:11,333 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:04:11,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:11 BoogieIcfgContainer [2024-10-31 22:04:11,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:11,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:11,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:11,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:11,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:09" (1/3) ... [2024-10-31 22:04:11,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d24cc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:11, skipping insertion in model container [2024-10-31 22:04:11,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:10" (2/3) ... [2024-10-31 22:04:11,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d24cc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:11, skipping insertion in model container [2024-10-31 22:04:11,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:11" (3/3) ... [2024-10-31 22:04:11,351 INFO L112 eAbstractionObserver]: Analyzing ICFG safe001_tso.i [2024-10-31 22:04:11,367 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:11,367 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:04:11,367 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:04:11,408 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:04:11,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-10-31 22:04:11,482 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-10-31 22:04:11,482 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:11,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-10-31 22:04:11,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-10-31 22:04:11,490 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-10-31 22:04:11,499 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:11,506 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;@4f42856c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:11,507 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 22:04:11,519 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:11,520 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-10-31 22:04:11,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:11,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:11,521 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:11,522 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 1 more)] === [2024-10-31 22:04:11,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:11,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1547160918, now seen corresponding path program 1 times [2024-10-31 22:04:11,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:11,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673986147] [2024-10-31 22:04:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:11,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:12,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:12,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:12,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673986147] [2024-10-31 22:04:12,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673986147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:12,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:12,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:12,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178019619] [2024-10-31 22:04:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:12,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:04:12,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:04:12,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:12,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-31 22:04:12,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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) [2024-10-31 22:04:12,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:12,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-31 22:04:12,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:12,992 INFO L124 PetriNetUnfolderBase]: 1589/2933 cut-off events. [2024-10-31 22:04:12,993 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:04:13,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5412 conditions, 2933 events. 1589/2933 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 20883 event pairs, 457 based on Foata normal form. 99/2993 useless extension candidates. Maximal degree in co-relation 5401. Up to 979 conditions per place. [2024-10-31 22:04:13,023 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 30 selfloop transitions, 7 changer transitions 39/88 dead transitions. [2024-10-31 22:04:13,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 88 transitions, 343 flow [2024-10-31 22:04:13,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:04:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:04:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 183 transitions. [2024-10-31 22:04:13,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6879699248120301 [2024-10-31 22:04:13,041 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 183 transitions. [2024-10-31 22:04:13,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 88 transitions, 343 flow [2024-10-31 22:04:13,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 88 transitions, 338 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:04:13,052 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 156 flow [2024-10-31 22:04:13,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2024-10-31 22:04:13,061 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-10-31 22:04:13,061 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 156 flow [2024-10-31 22:04:13,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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) [2024-10-31 22:04:13,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:13,062 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:13,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:13,062 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 1 more)] === [2024-10-31 22:04:13,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:13,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1640865463, now seen corresponding path program 1 times [2024-10-31 22:04:13,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:13,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120216942] [2024-10-31 22:04:13,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:13,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:13,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:13,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120216942] [2024-10-31 22:04:13,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120216942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:13,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:13,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:13,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207036058] [2024-10-31 22:04:13,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:13,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:13,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:13,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:13,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-31 22:04:13,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2024-10-31 22:04:13,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:13,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-31 22:04:13,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:14,164 INFO L124 PetriNetUnfolderBase]: 1329/2622 cut-off events. [2024-10-31 22:04:14,165 INFO L125 PetriNetUnfolderBase]: For 3388/3402 co-relation queries the response was YES. [2024-10-31 22:04:14,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7497 conditions, 2622 events. 1329/2622 cut-off events. For 3388/3402 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 19048 event pairs, 166 based on Foata normal form. 106/2711 useless extension candidates. Maximal degree in co-relation 7481. Up to 703 conditions per place. [2024-10-31 22:04:14,184 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 41 selfloop transitions, 11 changer transitions 66/130 dead transitions. [2024-10-31 22:04:14,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 130 transitions, 902 flow [2024-10-31 22:04:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:04:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:04:14,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 253 transitions. [2024-10-31 22:04:14,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6657894736842105 [2024-10-31 22:04:14,189 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 156 flow. Second operand 10 states and 253 transitions. [2024-10-31 22:04:14,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 130 transitions, 902 flow [2024-10-31 22:04:14,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 130 transitions, 828 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:14,212 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 276 flow [2024-10-31 22:04:14,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=276, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-10-31 22:04:14,214 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-10-31 22:04:14,215 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 276 flow [2024-10-31 22:04:14,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2024-10-31 22:04:14,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:14,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:14,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:14,217 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 1 more)] === [2024-10-31 22:04:14,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1549332459, now seen corresponding path program 1 times [2024-10-31 22:04:14,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:14,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714771412] [2024-10-31 22:04:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:14,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:14,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:14,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714771412] [2024-10-31 22:04:14,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714771412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:14,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:14,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:14,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280476388] [2024-10-31 22:04:14,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:14,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:14,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:14,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:14,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:14,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-31 22:04:14,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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) [2024-10-31 22:04:14,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:14,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-31 22:04:14,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:14,979 INFO L124 PetriNetUnfolderBase]: 1068/2030 cut-off events. [2024-10-31 22:04:14,980 INFO L125 PetriNetUnfolderBase]: For 6340/6343 co-relation queries the response was YES. [2024-10-31 22:04:14,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7023 conditions, 2030 events. 1068/2030 cut-off events. For 6340/6343 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 13314 event pairs, 203 based on Foata normal form. 45/2053 useless extension candidates. Maximal degree in co-relation 6998. Up to 712 conditions per place. [2024-10-31 22:04:14,997 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 49 selfloop transitions, 14 changer transitions 40/115 dead transitions. [2024-10-31 22:04:14,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 115 transitions, 886 flow [2024-10-31 22:04:14,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:04:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:04:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 239 transitions. [2024-10-31 22:04:15,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6289473684210526 [2024-10-31 22:04:15,001 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 276 flow. Second operand 10 states and 239 transitions. [2024-10-31 22:04:15,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 115 transitions, 886 flow [2024-10-31 22:04:15,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 115 transitions, 858 flow, removed 14 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:15,020 INFO L231 Difference]: Finished difference. Result has 75 places, 52 transitions, 406 flow [2024-10-31 22:04:15,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=406, PETRI_PLACES=75, PETRI_TRANSITIONS=52} [2024-10-31 22:04:15,022 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 33 predicate places. [2024-10-31 22:04:15,022 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 52 transitions, 406 flow [2024-10-31 22:04:15,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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) [2024-10-31 22:04:15,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:15,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:15,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:15,023 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 1 more)] === [2024-10-31 22:04:15,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:15,023 INFO L85 PathProgramCache]: Analyzing trace with hash 307075436, now seen corresponding path program 1 times [2024-10-31 22:04:15,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:15,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560769906] [2024-10-31 22:04:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:15,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:15,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:15,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560769906] [2024-10-31 22:04:15,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560769906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:15,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:15,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:04:15,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138015101] [2024-10-31 22:04:15,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:15,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:04:15,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:15,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:04:15,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:04:15,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-31 22:04:15,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 52 transitions, 406 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 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) [2024-10-31 22:04:15,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:15,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-31 22:04:15,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:15,851 INFO L124 PetriNetUnfolderBase]: 1149/2320 cut-off events. [2024-10-31 22:04:15,852 INFO L125 PetriNetUnfolderBase]: For 10317/10327 co-relation queries the response was YES. [2024-10-31 22:04:15,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8382 conditions, 2320 events. 1149/2320 cut-off events. For 10317/10327 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 16926 event pairs, 168 based on Foata normal form. 87/2359 useless extension candidates. Maximal degree in co-relation 8346. Up to 723 conditions per place. [2024-10-31 22:04:15,872 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 41 selfloop transitions, 10 changer transitions 65/128 dead transitions. [2024-10-31 22:04:15,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 128 transitions, 1188 flow [2024-10-31 22:04:15,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:04:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:04:15,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 255 transitions. [2024-10-31 22:04:15,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6100478468899522 [2024-10-31 22:04:15,875 INFO L175 Difference]: Start difference. First operand has 75 places, 52 transitions, 406 flow. Second operand 11 states and 255 transitions. [2024-10-31 22:04:15,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 128 transitions, 1188 flow [2024-10-31 22:04:15,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 128 transitions, 1107 flow, removed 37 selfloop flow, removed 10 redundant places. [2024-10-31 22:04:15,917 INFO L231 Difference]: Finished difference. Result has 78 places, 45 transitions, 343 flow [2024-10-31 22:04:15,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=343, PETRI_PLACES=78, PETRI_TRANSITIONS=45} [2024-10-31 22:04:15,918 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 36 predicate places. [2024-10-31 22:04:15,919 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 45 transitions, 343 flow [2024-10-31 22:04:15,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 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) [2024-10-31 22:04:15,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:15,920 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:15,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:15,921 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 1 more)] === [2024-10-31 22:04:15,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:15,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1565631665, now seen corresponding path program 1 times [2024-10-31 22:04:15,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:15,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201040251] [2024-10-31 22:04:15,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:15,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:16,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:16,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201040251] [2024-10-31 22:04:16,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201040251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:16,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:16,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:04:16,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680950152] [2024-10-31 22:04:16,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:16,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:16,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:16,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:16,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:16,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-31 22:04:16,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 45 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2024-10-31 22:04:16,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:16,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-31 22:04:16,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:16,454 INFO L124 PetriNetUnfolderBase]: 476/1010 cut-off events. [2024-10-31 22:04:16,454 INFO L125 PetriNetUnfolderBase]: For 4347/4347 co-relation queries the response was YES. [2024-10-31 22:04:16,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3712 conditions, 1010 events. 476/1010 cut-off events. For 4347/4347 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6255 event pairs, 76 based on Foata normal form. 26/999 useless extension candidates. Maximal degree in co-relation 3687. Up to 278 conditions per place. [2024-10-31 22:04:16,463 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 39 selfloop transitions, 12 changer transitions 28/91 dead transitions. [2024-10-31 22:04:16,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 91 transitions, 789 flow [2024-10-31 22:04:16,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:04:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:04:16,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 221 transitions. [2024-10-31 22:04:16,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5815789473684211 [2024-10-31 22:04:16,465 INFO L175 Difference]: Start difference. First operand has 78 places, 45 transitions, 343 flow. Second operand 10 states and 221 transitions. [2024-10-31 22:04:16,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 91 transitions, 789 flow [2024-10-31 22:04:16,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 91 transitions, 681 flow, removed 50 selfloop flow, removed 8 redundant places. [2024-10-31 22:04:16,479 INFO L231 Difference]: Finished difference. Result has 81 places, 46 transitions, 374 flow [2024-10-31 22:04:16,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=374, PETRI_PLACES=81, PETRI_TRANSITIONS=46} [2024-10-31 22:04:16,480 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 39 predicate places. [2024-10-31 22:04:16,480 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 46 transitions, 374 flow [2024-10-31 22:04:16,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2024-10-31 22:04:16,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:16,480 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:16,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:16,481 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 1 more)] === [2024-10-31 22:04:16,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:16,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1250102615, now seen corresponding path program 1 times [2024-10-31 22:04:16,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:16,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382162869] [2024-10-31 22:04:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:16,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:16,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:16,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382162869] [2024-10-31 22:04:16,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382162869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:16,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:16,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:16,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42072813] [2024-10-31 22:04:16,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:16,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:16,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:16,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-10-31 22:04:16,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 46 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-31 22:04:16,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:16,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-10-31 22:04:16,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:16,986 INFO L124 PetriNetUnfolderBase]: 436/1025 cut-off events. [2024-10-31 22:04:16,986 INFO L125 PetriNetUnfolderBase]: For 3869/3967 co-relation queries the response was YES. [2024-10-31 22:04:16,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3493 conditions, 1025 events. 436/1025 cut-off events. For 3869/3967 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6986 event pairs, 117 based on Foata normal form. 40/1021 useless extension candidates. Maximal degree in co-relation 3466. Up to 329 conditions per place. [2024-10-31 22:04:16,995 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 26 selfloop transitions, 5 changer transitions 18/68 dead transitions. [2024-10-31 22:04:16,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 68 transitions, 555 flow [2024-10-31 22:04:16,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2024-10-31 22:04:16,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2024-10-31 22:04:16,997 INFO L175 Difference]: Start difference. First operand has 81 places, 46 transitions, 374 flow. Second operand 6 states and 148 transitions. [2024-10-31 22:04:16,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 68 transitions, 555 flow [2024-10-31 22:04:17,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 497 flow, removed 23 selfloop flow, removed 12 redundant places. [2024-10-31 22:04:17,013 INFO L231 Difference]: Finished difference. Result has 71 places, 40 transitions, 282 flow [2024-10-31 22:04:17,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=282, PETRI_PLACES=71, PETRI_TRANSITIONS=40} [2024-10-31 22:04:17,014 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2024-10-31 22:04:17,014 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 40 transitions, 282 flow [2024-10-31 22:04:17,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-31 22:04:17,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:17,014 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:17,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:17,015 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 1 more)] === [2024-10-31 22:04:17,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,015 INFO L85 PathProgramCache]: Analyzing trace with hash 826284135, now seen corresponding path program 2 times [2024-10-31 22:04:17,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:17,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021667197] [2024-10-31 22:04:17,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:17,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:17,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:17,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021667197] [2024-10-31 22:04:17,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021667197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:17,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:17,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:04:17,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364111871] [2024-10-31 22:04:17,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:17,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:17,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:17,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:17,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:17,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-10-31 22:04:17,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 40 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-31 22:04:17,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:17,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-10-31 22:04:17,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:17,385 INFO L124 PetriNetUnfolderBase]: 263/642 cut-off events. [2024-10-31 22:04:17,385 INFO L125 PetriNetUnfolderBase]: For 1592/1609 co-relation queries the response was YES. [2024-10-31 22:04:17,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2109 conditions, 642 events. 263/642 cut-off events. For 1592/1609 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4045 event pairs, 62 based on Foata normal form. 16/642 useless extension candidates. Maximal degree in co-relation 2089. Up to 155 conditions per place. [2024-10-31 22:04:17,390 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 20 selfloop transitions, 2 changer transitions 27/64 dead transitions. [2024-10-31 22:04:17,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 64 transitions, 436 flow [2024-10-31 22:04:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:04:17,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:04:17,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions. [2024-10-31 22:04:17,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6390977443609023 [2024-10-31 22:04:17,392 INFO L175 Difference]: Start difference. First operand has 71 places, 40 transitions, 282 flow. Second operand 7 states and 170 transitions. [2024-10-31 22:04:17,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 64 transitions, 436 flow [2024-10-31 22:04:17,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 361 flow, removed 12 selfloop flow, removed 13 redundant places. [2024-10-31 22:04:17,401 INFO L231 Difference]: Finished difference. Result has 65 places, 32 transitions, 140 flow [2024-10-31 22:04:17,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=140, PETRI_PLACES=65, PETRI_TRANSITIONS=32} [2024-10-31 22:04:17,402 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2024-10-31 22:04:17,402 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 32 transitions, 140 flow [2024-10-31 22:04:17,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-31 22:04:17,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:17,402 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:17,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:04:17,403 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:04:17,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1406185615, now seen corresponding path program 3 times [2024-10-31 22:04:17,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:17,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555243737] [2024-10-31 22:04:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:17,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:17,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:17,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555243737] [2024-10-31 22:04:17,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555243737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:17,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:17,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:17,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417820488] [2024-10-31 22:04:17,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:17,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:17,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:17,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:17,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-31 22:04:17,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 32 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-10-31 22:04:17,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:17,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-31 22:04:17,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:17,652 INFO L124 PetriNetUnfolderBase]: 282/560 cut-off events. [2024-10-31 22:04:17,653 INFO L125 PetriNetUnfolderBase]: For 220/228 co-relation queries the response was YES. [2024-10-31 22:04:17,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 560 events. 282/560 cut-off events. For 220/228 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2810 event pairs, 86 based on Foata normal form. 27/558 useless extension candidates. Maximal degree in co-relation 1191. Up to 261 conditions per place. [2024-10-31 22:04:17,657 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 21 selfloop transitions, 4 changer transitions 4/45 dead transitions. [2024-10-31 22:04:17,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 45 transitions, 226 flow [2024-10-31 22:04:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:04:17,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-10-31 22:04:17,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7302631578947368 [2024-10-31 22:04:17,658 INFO L175 Difference]: Start difference. First operand has 65 places, 32 transitions, 140 flow. Second operand 4 states and 111 transitions. [2024-10-31 22:04:17,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 45 transitions, 226 flow [2024-10-31 22:04:17,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 174 flow, removed 6 selfloop flow, removed 16 redundant places. [2024-10-31 22:04:17,664 INFO L231 Difference]: Finished difference. Result has 50 places, 34 transitions, 116 flow [2024-10-31 22:04:17,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2024-10-31 22:04:17,665 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2024-10-31 22:04:17,665 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 116 flow [2024-10-31 22:04:17,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-10-31 22:04:17,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:17,665 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:17,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:04:17,666 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:04:17,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash 670042966, now seen corresponding path program 1 times [2024-10-31 22:04:17,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:17,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845222416] [2024-10-31 22:04:17,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:17,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:17,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:17,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845222416] [2024-10-31 22:04:17,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845222416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:17,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:17,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:17,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746000370] [2024-10-31 22:04:17,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:17,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:04:17,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:17,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:04:17,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:17,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-31 22:04:17,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 34 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-31 22:04:17,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:17,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-31 22:04:17,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:17,933 INFO L124 PetriNetUnfolderBase]: 202/413 cut-off events. [2024-10-31 22:04:17,933 INFO L125 PetriNetUnfolderBase]: For 150/199 co-relation queries the response was YES. [2024-10-31 22:04:17,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 413 events. 202/413 cut-off events. For 150/199 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1848 event pairs, 22 based on Foata normal form. 27/422 useless extension candidates. Maximal degree in co-relation 980. Up to 161 conditions per place. [2024-10-31 22:04:17,936 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 20 selfloop transitions, 6 changer transitions 8/50 dead transitions. [2024-10-31 22:04:17,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 233 flow [2024-10-31 22:04:17,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:04:17,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:04:17,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2024-10-31 22:04:17,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7157894736842105 [2024-10-31 22:04:17,937 INFO L175 Difference]: Start difference. First operand has 50 places, 34 transitions, 116 flow. Second operand 5 states and 136 transitions. [2024-10-31 22:04:17,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 233 flow [2024-10-31 22:04:17,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 50 transitions, 224 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:17,939 INFO L231 Difference]: Finished difference. Result has 54 places, 34 transitions, 134 flow [2024-10-31 22:04:17,939 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=134, PETRI_PLACES=54, PETRI_TRANSITIONS=34} [2024-10-31 22:04:17,940 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2024-10-31 22:04:17,940 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 34 transitions, 134 flow [2024-10-31 22:04:17,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-10-31 22:04:17,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:17,941 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:17,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:04:17,941 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:04:17,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1310522661, now seen corresponding path program 1 times [2024-10-31 22:04:17,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:17,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922769259] [2024-10-31 22:04:17,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:17,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:18,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:18,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:18,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922769259] [2024-10-31 22:04:18,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922769259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:18,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:18,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:18,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361914701] [2024-10-31 22:04:18,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:18,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:18,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:18,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:18,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:18,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-31 22:04:18,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 34 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-10-31 22:04:18,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:18,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-31 22:04:18,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:18,186 INFO L124 PetriNetUnfolderBase]: 80/171 cut-off events. [2024-10-31 22:04:18,187 INFO L125 PetriNetUnfolderBase]: For 178/227 co-relation queries the response was YES. [2024-10-31 22:04:18,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 171 events. 80/171 cut-off events. For 178/227 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 505 event pairs, 2 based on Foata normal form. 16/181 useless extension candidates. Maximal degree in co-relation 455. Up to 56 conditions per place. [2024-10-31 22:04:18,188 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2024-10-31 22:04:18,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 43 transitions, 214 flow [2024-10-31 22:04:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:18,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:18,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-10-31 22:04:18,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-31 22:04:18,189 INFO L175 Difference]: Start difference. First operand has 54 places, 34 transitions, 134 flow. Second operand 6 states and 152 transitions. [2024-10-31 22:04:18,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 43 transitions, 214 flow [2024-10-31 22:04:18,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 192 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-10-31 22:04:18,190 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2024-10-31 22:04:18,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2024-10-31 22:04:18,191 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2024-10-31 22:04:18,191 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2024-10-31 22:04:18,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-10-31 22:04:18,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-31 22:04:18,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-31 22:04:18,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-31 22:04:18,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-31 22:04:18,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:04:18,195 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:18,199 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:04:18,199 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:04:18,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:04:18 BasicIcfg [2024-10-31 22:04:18,204 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:04:18,204 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:04:18,205 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:04:18,205 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:04:18,205 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:11" (3/4) ... [2024-10-31 22:04:18,208 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:04:18,211 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-31 22:04:18,211 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-31 22:04:18,211 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-31 22:04:18,215 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-31 22:04:18,216 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-31 22:04:18,216 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 22:04:18,216 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:04:18,291 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:04:18,292 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:04:18,292 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:04:18,292 INFO L158 Benchmark]: Toolchain (without parser) took 8378.04ms. Allocated memory was 127.9MB in the beginning and 272.6MB in the end (delta: 144.7MB). Free memory was 62.6MB in the beginning and 86.3MB in the end (delta: -23.7MB). Peak memory consumption was 123.8MB. Max. memory is 16.1GB. [2024-10-31 22:04:18,293 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 100.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:18,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 667.56ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 62.4MB in the beginning and 112.9MB in the end (delta: -50.5MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-10-31 22:04:18,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.73ms. Allocated memory is still 163.6MB. Free memory was 112.9MB in the beginning and 110.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:18,294 INFO L158 Benchmark]: Boogie Preprocessor took 72.46ms. Allocated memory is still 163.6MB. Free memory was 110.8MB in the beginning and 108.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:18,294 INFO L158 Benchmark]: RCFGBuilder took 613.20ms. Allocated memory is still 163.6MB. Free memory was 108.7MB in the beginning and 117.4MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:04:18,294 INFO L158 Benchmark]: TraceAbstraction took 6865.25ms. Allocated memory was 163.6MB in the beginning and 272.6MB in the end (delta: 109.1MB). Free memory was 117.2MB in the beginning and 90.5MB in the end (delta: 26.8MB). Peak memory consumption was 139.0MB. Max. memory is 16.1GB. [2024-10-31 22:04:18,295 INFO L158 Benchmark]: Witness Printer took 87.46ms. Allocated memory is still 272.6MB. Free memory was 90.5MB in the beginning and 86.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:04:18,296 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 100.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 667.56ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 62.4MB in the beginning and 112.9MB in the end (delta: -50.5MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.73ms. Allocated memory is still 163.6MB. Free memory was 112.9MB in the beginning and 110.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.46ms. Allocated memory is still 163.6MB. Free memory was 110.8MB in the beginning and 108.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 613.20ms. Allocated memory is still 163.6MB. Free memory was 108.7MB in the beginning and 117.4MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6865.25ms. Allocated memory was 163.6MB in the beginning and 272.6MB in the end (delta: 109.1MB). Free memory was 117.2MB in the beginning and 90.5MB in the end (delta: 26.8MB). Peak memory consumption was 139.0MB. Max. memory is 16.1GB. * Witness Printer took 87.46ms. Allocated memory is still 272.6MB. Free memory was 90.5MB in the beginning and 86.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 7 procedures, 62 locations, 4 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: 6.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 470 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 329 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 227 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 983 IncrementalHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 102 mSDtfsCounter, 983 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=406occurred in iteration=3, InterpolantAutomatonStates: 76, 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, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 773 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:04:18,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd9ccb3-b8b8-4c67-a78e-3d0558030b6f/bin/uautomizer-verify-4GaUIPS5ZU/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