./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe021_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe021_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:06:08,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:06:08,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:06:08,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:06:08,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:06:08,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:06:08,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:06:08,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:06:08,318 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:06:08,318 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:06:08,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:06:08,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:06:08,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:06:08,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:06:08,319 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:06:08,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:06:08,319 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:06:08,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:06:08,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:06:08,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:06:08,320 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:06:08,320 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:06:08,320 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:06:08,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:06:08,321 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:06:08,321 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:06:08,321 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:06:08,321 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:06:08,321 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:06:08,321 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:06:08,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:08,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:08,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:08,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:08,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:06:08,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:08,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:08,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:08,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:08,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:06:08,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:06:08,323 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:06:08,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:06:08,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:06:08,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:06:08,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:06:08,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:06:08,324 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 [2024-11-28 03:06:08,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:06:08,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:06:08,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:06:08,616 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:06:08,617 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:06:08,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/safe021_tso.i [2024-11-28 03:06:11,653 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/data/0012e748a/90ee8de8b6ad413797c6cdface4f7ca5/FLAG9ce82bcb5 [2024-11-28 03:06:12,021 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:06:12,022 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/sv-benchmarks/c/pthread-wmm/safe021_tso.i [2024-11-28 03:06:12,034 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/data/0012e748a/90ee8de8b6ad413797c6cdface4f7ca5/FLAG9ce82bcb5 [2024-11-28 03:06:12,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/data/0012e748a/90ee8de8b6ad413797c6cdface4f7ca5 [2024-11-28 03:06:12,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:06:12,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:06:12,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:12,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:06:12,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:06:12,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fde38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12, skipping insertion in model container [2024-11-28 03:06:12,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:06:12,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:12,567 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:06:12,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:12,675 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:06:12,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12 WrapperNode [2024-11-28 03:06:12,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:12,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:12,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:06:12,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:06:12,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,732 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-28 03:06:12,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:12,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:06:12,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:06:12,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:06:12,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,765 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:06:12,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,770 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:06:12,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:06:12,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:06:12,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:06:12,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (1/1) ... [2024-11-28 03:06:12,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:12,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:12,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:12,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:06:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:06:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:06:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 03:06:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 03:06:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 03:06:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 03:06:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 03:06:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 03:06:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:06:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:06:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:06:12,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:06:12,847 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:06:13,005 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:06:13,007 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:06:13,163 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:06:13,163 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:06:13,248 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:06:13,248 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:06:13,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:13 BoogieIcfgContainer [2024-11-28 03:06:13,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:06:13,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:06:13,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:06:13,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:06:13,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:06:12" (1/3) ... [2024-11-28 03:06:13,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b4eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:13, skipping insertion in model container [2024-11-28 03:06:13,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:12" (2/3) ... [2024-11-28 03:06:13,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b4eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:13, skipping insertion in model container [2024-11-28 03:06:13,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:13" (3/3) ... [2024-11-28 03:06:13,261 INFO L128 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2024-11-28 03:06:13,277 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:06:13,279 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe021_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 03:06:13,279 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:06:13,360 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:06:13,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-11-28 03:06:13,435 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-28 03:06:13,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:06:13,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-11-28 03:06:13,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-11-28 03:06:13,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-11-28 03:06:13,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:06:13,475 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=None, 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;@43a661b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:06:13,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-28 03:06:13,500 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:06:13,502 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-11-28 03:06:13,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:06:13,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:13,503 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:13,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:13,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:13,511 INFO L85 PathProgramCache]: Analyzing trace with hash 710438097, now seen corresponding path program 1 times [2024-11-28 03:06:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:13,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980224594] [2024-11-28 03:06:13,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:13,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:13,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:13,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980224594] [2024-11-28 03:06:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980224594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:13,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:13,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:06:13,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566371970] [2024-11-28 03:06:13,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:13,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:13,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:13,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:13,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:13,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-11-28 03:06:13,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:13,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:13,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-11-28 03:06:13,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:14,032 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-11-28 03:06:14,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:06:14,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1153 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-11-28 03:06:14,038 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-28 03:06:14,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-11-28 03:06:14,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:14,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:06:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-28 03:06:14,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-11-28 03:06:14,058 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-11-28 03:06:14,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-11-28 03:06:14,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:06:14,067 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-28 03:06:14,070 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-28 03:06:14,073 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-11-28 03:06:14,074 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-28 03:06:14,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:14,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:14,074 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:14,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:06:14,075 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:14,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:14,076 INFO L85 PathProgramCache]: Analyzing trace with hash 710439650, now seen corresponding path program 1 times [2024-11-28 03:06:14,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:14,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378660463] [2024-11-28 03:06:14,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:14,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:14,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:14,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378660463] [2024-11-28 03:06:14,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378660463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:14,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:14,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:06:14,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214567520] [2024-11-28 03:06:14,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:14,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:06:14,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:14,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:06:14,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:06:14,530 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-11-28 03:06:14,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:14,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:14,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-11-28 03:06:14,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:15,154 INFO L124 PetriNetUnfolderBase]: 1052/2030 cut-off events. [2024-11-28 03:06:15,155 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:06:15,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3721 conditions, 2030 events. 1052/2030 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 14741 event pairs, 211 based on Foata normal form. 0/1935 useless extension candidates. Maximal degree in co-relation 3715. Up to 644 conditions per place. [2024-11-28 03:06:15,175 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 26 selfloop transitions, 5 changer transitions 48/94 dead transitions. [2024-11-28 03:06:15,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 94 transitions, 356 flow [2024-11-28 03:06:15,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:06:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:06:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 252 transitions. [2024-11-28 03:06:15,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6511627906976745 [2024-11-28 03:06:15,179 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 252 transitions. [2024-11-28 03:06:15,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 94 transitions, 356 flow [2024-11-28 03:06:15,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 94 transitions, 355 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:06:15,184 INFO L231 Difference]: Finished difference. Result has 58 places, 37 transitions, 143 flow [2024-11-28 03:06:15,184 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=143, PETRI_PLACES=58, PETRI_TRANSITIONS=37} [2024-11-28 03:06:15,185 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-11-28 03:06:15,185 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 37 transitions, 143 flow [2024-11-28 03:06:15,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:15,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:15,188 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:15,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:06:15,188 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:15,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:15,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2062927041, now seen corresponding path program 1 times [2024-11-28 03:06:15,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:15,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463107026] [2024-11-28 03:06:15,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:15,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:15,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:15,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:15,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463107026] [2024-11-28 03:06:15,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463107026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:15,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:15,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:06:15,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303740312] [2024-11-28 03:06:15,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:15,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:15,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:15,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:15,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:15,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-11-28 03:06:15,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 37 transitions, 143 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:15,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:15,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-11-28 03:06:15,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:15,991 INFO L124 PetriNetUnfolderBase]: 684/1437 cut-off events. [2024-11-28 03:06:15,991 INFO L125 PetriNetUnfolderBase]: For 1554/1554 co-relation queries the response was YES. [2024-11-28 03:06:15,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3919 conditions, 1437 events. 684/1437 cut-off events. For 1554/1554 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 10161 event pairs, 126 based on Foata normal form. 40/1462 useless extension candidates. Maximal degree in co-relation 3904. Up to 517 conditions per place. [2024-11-28 03:06:16,006 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 29 selfloop transitions, 6 changer transitions 32/82 dead transitions. [2024-11-28 03:06:16,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 82 transitions, 461 flow [2024-11-28 03:06:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:06:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:06:16,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-11-28 03:06:16,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2024-11-28 03:06:16,010 INFO L175 Difference]: Start difference. First operand has 58 places, 37 transitions, 143 flow. Second operand 10 states and 256 transitions. [2024-11-28 03:06:16,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 82 transitions, 461 flow [2024-11-28 03:06:16,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 82 transitions, 395 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-28 03:06:16,029 INFO L231 Difference]: Finished difference. Result has 65 places, 39 transitions, 173 flow [2024-11-28 03:06:16,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=173, PETRI_PLACES=65, PETRI_TRANSITIONS=39} [2024-11-28 03:06:16,030 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-11-28 03:06:16,030 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 39 transitions, 173 flow [2024-11-28 03:06:16,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:16,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:16,031 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:16,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:06:16,031 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:16,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:16,032 INFO L85 PathProgramCache]: Analyzing trace with hash -655789445, now seen corresponding path program 1 times [2024-11-28 03:06:16,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:16,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689929504] [2024-11-28 03:06:16,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:16,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:16,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:16,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:16,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689929504] [2024-11-28 03:06:16,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689929504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:16,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:16,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:06:16,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990081809] [2024-11-28 03:06:16,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:16,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:16,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:16,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:16,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:16,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-11-28 03:06:16,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 39 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:16,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:16,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-11-28 03:06:16,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:16,657 INFO L124 PetriNetUnfolderBase]: 637/1340 cut-off events. [2024-11-28 03:06:16,657 INFO L125 PetriNetUnfolderBase]: For 2659/2661 co-relation queries the response was YES. [2024-11-28 03:06:16,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3949 conditions, 1340 events. 637/1340 cut-off events. For 2659/2661 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8952 event pairs, 156 based on Foata normal form. 43/1367 useless extension candidates. Maximal degree in co-relation 3927. Up to 518 conditions per place. [2024-11-28 03:06:16,671 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 34 selfloop transitions, 11 changer transitions 34/94 dead transitions. [2024-11-28 03:06:16,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 94 transitions, 615 flow [2024-11-28 03:06:16,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:06:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:06:16,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 268 transitions. [2024-11-28 03:06:16,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6232558139534884 [2024-11-28 03:06:16,675 INFO L175 Difference]: Start difference. First operand has 65 places, 39 transitions, 173 flow. Second operand 10 states and 268 transitions. [2024-11-28 03:06:16,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 94 transitions, 615 flow [2024-11-28 03:06:16,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 94 transitions, 563 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-11-28 03:06:16,692 INFO L231 Difference]: Finished difference. Result has 69 places, 43 transitions, 238 flow [2024-11-28 03:06:16,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=238, PETRI_PLACES=69, PETRI_TRANSITIONS=43} [2024-11-28 03:06:16,693 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-11-28 03:06:16,694 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 43 transitions, 238 flow [2024-11-28 03:06:16,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:16,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:16,695 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:16,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:06:16,695 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:16,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:16,696 INFO L85 PathProgramCache]: Analyzing trace with hash 691510508, now seen corresponding path program 1 times [2024-11-28 03:06:16,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:16,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531500361] [2024-11-28 03:06:16,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:16,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:16,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:16,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531500361] [2024-11-28 03:06:16,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531500361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:16,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:16,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:06:16,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427549534] [2024-11-28 03:06:16,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:16,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:16,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:16,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:16,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:16,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-28 03:06:16,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 43 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:16,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:16,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-28 03:06:16,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:17,570 INFO L124 PetriNetUnfolderBase]: 965/1972 cut-off events. [2024-11-28 03:06:17,570 INFO L125 PetriNetUnfolderBase]: For 4984/4991 co-relation queries the response was YES. [2024-11-28 03:06:17,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6082 conditions, 1972 events. 965/1972 cut-off events. For 4984/4991 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 14156 event pairs, 95 based on Foata normal form. 57/2015 useless extension candidates. Maximal degree in co-relation 6057. Up to 443 conditions per place. [2024-11-28 03:06:17,585 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 50 selfloop transitions, 19 changer transitions 54/137 dead transitions. [2024-11-28 03:06:17,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 137 transitions, 1089 flow [2024-11-28 03:06:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:06:17,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 03:06:17,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 344 transitions. [2024-11-28 03:06:17,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-11-28 03:06:17,588 INFO L175 Difference]: Start difference. First operand has 69 places, 43 transitions, 238 flow. Second operand 13 states and 344 transitions. [2024-11-28 03:06:17,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 137 transitions, 1089 flow [2024-11-28 03:06:17,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 137 transitions, 983 flow, removed 53 selfloop flow, removed 8 redundant places. [2024-11-28 03:06:17,604 INFO L231 Difference]: Finished difference. Result has 79 places, 55 transitions, 460 flow [2024-11-28 03:06:17,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=460, PETRI_PLACES=79, PETRI_TRANSITIONS=55} [2024-11-28 03:06:17,608 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2024-11-28 03:06:17,608 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 55 transitions, 460 flow [2024-11-28 03:06:17,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:17,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:17,609 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:17,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:06:17,611 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:17,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash -466866366, now seen corresponding path program 2 times [2024-11-28 03:06:17,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:17,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966178144] [2024-11-28 03:06:17,612 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:06:17,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:17,631 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:06:17,634 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:06:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:17,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:17,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966178144] [2024-11-28 03:06:17,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966178144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:17,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:17,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:17,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118129787] [2024-11-28 03:06:17,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:17,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:06:17,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:17,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:06:17,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:17,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-28 03:06:17,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 55 transitions, 460 flow. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:17,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:17,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-28 03:06:17,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:18,289 INFO L124 PetriNetUnfolderBase]: 966/1987 cut-off events. [2024-11-28 03:06:18,289 INFO L125 PetriNetUnfolderBase]: For 10153/10184 co-relation queries the response was YES. [2024-11-28 03:06:18,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7406 conditions, 1987 events. 966/1987 cut-off events. For 10153/10184 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 14485 event pairs, 194 based on Foata normal form. 58/2041 useless extension candidates. Maximal degree in co-relation 7375. Up to 444 conditions per place. [2024-11-28 03:06:18,305 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 35 selfloop transitions, 7 changer transitions 54/110 dead transitions. [2024-11-28 03:06:18,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 110 transitions, 1127 flow [2024-11-28 03:06:18,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:06:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:06:18,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2024-11-28 03:06:18,309 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2024-11-28 03:06:18,310 INFO L175 Difference]: Start difference. First operand has 79 places, 55 transitions, 460 flow. Second operand 9 states and 233 transitions. [2024-11-28 03:06:18,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 110 transitions, 1127 flow [2024-11-28 03:06:18,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 110 transitions, 997 flow, removed 65 selfloop flow, removed 6 redundant places. [2024-11-28 03:06:18,340 INFO L231 Difference]: Finished difference. Result has 79 places, 40 transitions, 257 flow [2024-11-28 03:06:18,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=257, PETRI_PLACES=79, PETRI_TRANSITIONS=40} [2024-11-28 03:06:18,343 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2024-11-28 03:06:18,343 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 40 transitions, 257 flow [2024-11-28 03:06:18,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:18,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:18,344 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:18,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:06:18,344 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:18,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:18,345 INFO L85 PathProgramCache]: Analyzing trace with hash 813330526, now seen corresponding path program 1 times [2024-11-28 03:06:18,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:18,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440898012] [2024-11-28 03:06:18,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:18,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:18,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440898012] [2024-11-28 03:06:18,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440898012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:18,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:18,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:06:18,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867961859] [2024-11-28 03:06:18,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:18,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:06:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:18,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:06:18,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:06:18,506 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-28 03:06:18,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 40 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:18,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:18,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-28 03:06:18,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:18,790 INFO L124 PetriNetUnfolderBase]: 851/1671 cut-off events. [2024-11-28 03:06:18,790 INFO L125 PetriNetUnfolderBase]: For 2239/2318 co-relation queries the response was YES. [2024-11-28 03:06:18,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4107 conditions, 1671 events. 851/1671 cut-off events. For 2239/2318 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10949 event pairs, 198 based on Foata normal form. 67/1645 useless extension candidates. Maximal degree in co-relation 4083. Up to 783 conditions per place. [2024-11-28 03:06:18,804 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 27 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-11-28 03:06:18,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 55 transitions, 355 flow [2024-11-28 03:06:18,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:06:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:06:18,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-11-28 03:06:18,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2024-11-28 03:06:18,807 INFO L175 Difference]: Start difference. First operand has 79 places, 40 transitions, 257 flow. Second operand 4 states and 118 transitions. [2024-11-28 03:06:18,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 55 transitions, 355 flow [2024-11-28 03:06:18,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 55 transitions, 260 flow, removed 15 selfloop flow, removed 18 redundant places. [2024-11-28 03:06:18,818 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 200 flow [2024-11-28 03:06:18,818 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2024-11-28 03:06:18,819 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 15 predicate places. [2024-11-28 03:06:18,819 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 200 flow [2024-11-28 03:06:18,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:18,819 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:18,819 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:18,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:06:18,819 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:18,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:18,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1514334109, now seen corresponding path program 1 times [2024-11-28 03:06:18,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:18,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881772838] [2024-11-28 03:06:18,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:18,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:18,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:18,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:18,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881772838] [2024-11-28 03:06:18,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881772838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:18,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:18,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:06:18,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074799765] [2024-11-28 03:06:18,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:18,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:06:18,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:18,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:06:18,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:06:18,987 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-28 03:06:18,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 200 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:18,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:18,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-28 03:06:18,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:19,222 INFO L124 PetriNetUnfolderBase]: 694/1368 cut-off events. [2024-11-28 03:06:19,222 INFO L125 PetriNetUnfolderBase]: For 629/1005 co-relation queries the response was YES. [2024-11-28 03:06:19,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3457 conditions, 1368 events. 694/1368 cut-off events. For 629/1005 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 8234 event pairs, 69 based on Foata normal form. 79/1378 useless extension candidates. Maximal degree in co-relation 3444. Up to 544 conditions per place. [2024-11-28 03:06:19,232 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 34 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2024-11-28 03:06:19,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 347 flow [2024-11-28 03:06:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:06:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:06:19,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-11-28 03:06:19,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6930232558139535 [2024-11-28 03:06:19,233 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 200 flow. Second operand 5 states and 149 transitions. [2024-11-28 03:06:19,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 347 flow [2024-11-28 03:06:19,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 65 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:06:19,237 INFO L231 Difference]: Finished difference. Result has 67 places, 48 transitions, 252 flow [2024-11-28 03:06:19,237 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=252, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2024-11-28 03:06:19,238 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-11-28 03:06:19,238 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 48 transitions, 252 flow [2024-11-28 03:06:19,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:19,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:19,238 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:19,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:06:19,238 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:19,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash -872338758, now seen corresponding path program 1 times [2024-11-28 03:06:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:19,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564210645] [2024-11-28 03:06:19,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:19,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:19,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564210645] [2024-11-28 03:06:19,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564210645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:19,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:19,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:06:19,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003157979] [2024-11-28 03:06:19,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:19,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:19,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:19,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:19,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:19,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-28 03:06:19,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 48 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:19,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:19,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-28 03:06:19,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:19,586 INFO L124 PetriNetUnfolderBase]: 526/1000 cut-off events. [2024-11-28 03:06:19,587 INFO L125 PetriNetUnfolderBase]: For 1589/2375 co-relation queries the response was YES. [2024-11-28 03:06:19,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3107 conditions, 1000 events. 526/1000 cut-off events. For 1589/2375 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5463 event pairs, 25 based on Foata normal form. 74/1017 useless extension candidates. Maximal degree in co-relation 3092. Up to 400 conditions per place. [2024-11-28 03:06:19,593 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 33 selfloop transitions, 11 changer transitions 0/67 dead transitions. [2024-11-28 03:06:19,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 389 flow [2024-11-28 03:06:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:06:19,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2024-11-28 03:06:19,595 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-28 03:06:19,595 INFO L175 Difference]: Start difference. First operand has 67 places, 48 transitions, 252 flow. Second operand 6 states and 172 transitions. [2024-11-28 03:06:19,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 389 flow [2024-11-28 03:06:19,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 363 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-28 03:06:19,599 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 271 flow [2024-11-28 03:06:19,599 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2024-11-28 03:06:19,599 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-11-28 03:06:19,600 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 271 flow [2024-11-28 03:06:19,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:19,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:06:19,600 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:19,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:06:19,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:06:19,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash -862644968, now seen corresponding path program 1 times [2024-11-28 03:06:19,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:19,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435527903] [2024-11-28 03:06:19,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:19,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:19,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:19,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435527903] [2024-11-28 03:06:19,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435527903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:19,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:19,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:19,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986126392] [2024-11-28 03:06:19,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:19,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:19,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:19,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:19,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:19,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-28 03:06:19,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:19,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:06:19,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-28 03:06:19,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:06:20,052 INFO L124 PetriNetUnfolderBase]: 502/1077 cut-off events. [2024-11-28 03:06:20,052 INFO L125 PetriNetUnfolderBase]: For 2017/2131 co-relation queries the response was YES. [2024-11-28 03:06:20,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3248 conditions, 1077 events. 502/1077 cut-off events. For 2017/2131 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6743 event pairs, 143 based on Foata normal form. 16/956 useless extension candidates. Maximal degree in co-relation 3234. Up to 472 conditions per place. [2024-11-28 03:06:20,058 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-11-28 03:06:20,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 73 transitions, 447 flow [2024-11-28 03:06:20,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:06:20,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:06:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 174 transitions. [2024-11-28 03:06:20,060 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5780730897009967 [2024-11-28 03:06:20,060 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 271 flow. Second operand 7 states and 174 transitions. [2024-11-28 03:06:20,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 73 transitions, 447 flow [2024-11-28 03:06:20,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 423 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-28 03:06:20,068 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2024-11-28 03:06:20,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2024-11-28 03:06:20,070 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-11-28 03:06:20,070 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2024-11-28 03:06:20,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-28 03:06:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-28 03:06:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-28 03:06:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-28 03:06:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-28 03:06:20,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:06:20,075 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:20,079 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:06:20,080 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:06:20,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:06:20 BasicIcfg [2024-11-28 03:06:20,089 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:06:20,089 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:06:20,089 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:06:20,090 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:06:20,090 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:13" (3/4) ... [2024-11-28 03:06:20,093 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:06:20,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-28 03:06:20,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-28 03:06:20,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-28 03:06:20,100 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-28 03:06:20,100 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 03:06:20,101 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:06:20,101 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 03:06:20,186 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:06:20,187 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:06:20,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:06:20,188 INFO L158 Benchmark]: Toolchain (without parser) took 8134.98ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 104.7MB in the beginning and 289.7MB in the end (delta: -185.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-28 03:06:20,188 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:20,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.92ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 84.6MB in the end (delta: 20.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:06:20,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.55ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:06:20,190 INFO L158 Benchmark]: Boogie Preprocessor took 43.85ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 81.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:20,190 INFO L158 Benchmark]: RCFGBuilder took 471.69ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 62.8MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:06:20,191 INFO L158 Benchmark]: TraceAbstraction took 6837.76ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 62.1MB in the beginning and 293.9MB in the end (delta: -231.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:20,192 INFO L158 Benchmark]: Witness Printer took 97.82ms. Allocated memory is still 360.7MB. Free memory was 293.9MB in the beginning and 289.7MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:20,194 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.92ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 84.6MB in the end (delta: 20.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.55ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.85ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 81.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 471.69ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 62.8MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6837.76ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 62.1MB in the beginning and 293.9MB in the end (delta: -231.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 97.82ms. Allocated memory is still 360.7MB. Free memory was 293.9MB in the beginning and 289.7MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 438 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 407 mSDsluCounter, 262 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 192 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 882 IncrementalHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 70 mSDtfsCounter, 882 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=5, 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, 1.9s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 785 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:06:20,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943c44cb-d864-451e-a5b1-9f9b1a0f109c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE