./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe031_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_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/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_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe031_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/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_b0c10572-8c80-4dfa-815b-6870e9275d03/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 26b6897a83c9df9076ea7ea4c612ce46453382fa627c0d6af54da2d169befd96 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:31:44,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:31:44,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 20:31:44,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:31:44,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:31:44,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:31:44,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:31:44,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:31:44,591 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:31:44,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:31:44,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:31:44,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:31:44,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:31:44,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:31:44,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:31:44,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:31:44,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:31:44,594 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:31:44,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:31:44,595 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:31:44,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:31:44,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:31:44,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:31:44,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:44,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:31:44,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:31:44,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:31:44,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:31:44,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:44,596 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:31:44,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:31:44,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:31:44,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:31:44,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:31:44,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:31:44,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:31:44,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:31:44,596 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_b0c10572-8c80-4dfa-815b-6870e9275d03/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 -> 26b6897a83c9df9076ea7ea4c612ce46453382fa627c0d6af54da2d169befd96 [2024-11-27 20:31:45,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:31:45,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:31:45,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:31:45,026 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:31:45,027 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:31:45,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/safe031_tso.i [2024-11-27 20:31:48,083 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/data/5b22ed527/cdc8aae38fe5483dae7ae4a5009bb7b4/FLAG82bfbd994 [2024-11-27 20:31:48,521 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:31:48,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/sv-benchmarks/c/pthread-wmm/safe031_tso.i [2024-11-27 20:31:48,547 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/data/5b22ed527/cdc8aae38fe5483dae7ae4a5009bb7b4/FLAG82bfbd994 [2024-11-27 20:31:48,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/data/5b22ed527/cdc8aae38fe5483dae7ae4a5009bb7b4 [2024-11-27 20:31:48,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:31:48,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:31:48,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:31:48,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:31:48,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:31:48,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:31:48" (1/1) ... [2024-11-27 20:31:48,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67833c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:48, skipping insertion in model container [2024-11-27 20:31:48,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:31:48" (1/1) ... [2024-11-27 20:31:48,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:31:49,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:31:49,133 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:31:49,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:31:49,217 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:31:49,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49 WrapperNode [2024-11-27 20:31:49,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:31:49,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:31:49,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:31:49,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:31:49,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,272 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-11-27 20:31:49,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:31:49,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:31:49,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:31:49,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:31:49,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,298 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]. [2024-11-27 20:31:49,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,298 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,303 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,310 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,312 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:31:49,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:31:49,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:31:49,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:31:49,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:49,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:49,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:31:49,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:31:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 20:31:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:31:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-27 20:31:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-27 20:31:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-27 20:31:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-27 20:31:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-27 20:31:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-27 20:31:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:31:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 20:31:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:31:49,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:31:49,403 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:31:49,567 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:31:49,569 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:31:49,810 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:31:49,811 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:31:49,931 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:31:49,932 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:31:49,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:31:49 BoogieIcfgContainer [2024-11-27 20:31:49,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:31:49,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:31:49,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:31:49,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:31:49,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:31:48" (1/3) ... [2024-11-27 20:31:49,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9a52d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:31:49, skipping insertion in model container [2024-11-27 20:31:49,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49" (2/3) ... [2024-11-27 20:31:49,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9a52d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:31:49, skipping insertion in model container [2024-11-27 20:31:49,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:31:49" (3/3) ... [2024-11-27 20:31:49,948 INFO L128 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2024-11-27 20:31:49,965 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:31:49,966 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe031_tso.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-27 20:31:49,966 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:31:50,040 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:31:50,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-27 20:31:50,139 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-27 20:31:50,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:31:50,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-27 20:31:50,149 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-27 20:31:50,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-11-27 20:31:50,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:31:50,181 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;@e36a91e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:31:50,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-27 20:31:50,205 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:31:50,206 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-27 20:31:50,206 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:31:50,207 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:50,208 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:50,208 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)] === [2024-11-27 20:31:50,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:50,216 INFO L85 PathProgramCache]: Analyzing trace with hash 136525165, now seen corresponding path program 1 times [2024-11-27 20:31:50,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:50,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345726574] [2024-11-27 20:31:50,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:50,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:50,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:50,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345726574] [2024-11-27 20:31:50,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345726574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:50,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:50,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:31:50,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630368413] [2024-11-27 20:31:50,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:50,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:31:50,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:50,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:31:50,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:31:50,607 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-11-27 20:31:50,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:50,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:50,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-11-27 20:31:50,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:50,766 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-11-27 20:31:50,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:31:50,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1179 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-11-27 20:31:50,770 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-11-27 20:31:50,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-11-27 20:31:50,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:31:50,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:31:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-11-27 20:31:50,784 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-11-27 20:31:50,786 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-11-27 20:31:50,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-11-27 20:31:50,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 20:31:50,793 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-11-27 20:31:50,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-11-27 20:31:50,801 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-11-27 20:31:50,801 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-11-27 20:31:50,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:50,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:50,802 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:50,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:31:50,802 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)] === [2024-11-27 20:31:50,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:50,803 INFO L85 PathProgramCache]: Analyzing trace with hash 136526718, now seen corresponding path program 1 times [2024-11-27 20:31:50,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:50,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814446635] [2024-11-27 20:31:50,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:50,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:51,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:51,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814446635] [2024-11-27 20:31:51,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814446635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:51,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:51,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:31:51,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279784828] [2024-11-27 20:31:51,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:51,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:51,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:51,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:51,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:31:51,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-27 20:31:51,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 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) [2024-11-27 20:31:51,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:51,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-27 20:31:51,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:52,003 INFO L124 PetriNetUnfolderBase]: 1546/2872 cut-off events. [2024-11-27 20:31:52,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:31:52,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5301 conditions, 2872 events. 1546/2872 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 20996 event pairs, 327 based on Foata normal form. 0/2760 useless extension candidates. Maximal degree in co-relation 5295. Up to 764 conditions per place. [2024-11-27 20:31:52,028 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 29 selfloop transitions, 6 changer transitions 55/105 dead transitions. [2024-11-27 20:31:52,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 105 transitions, 402 flow [2024-11-27 20:31:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:31:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-27 20:31:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 263 transitions. [2024-11-27 20:31:52,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6641414141414141 [2024-11-27 20:31:52,035 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 263 transitions. [2024-11-27 20:31:52,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 105 transitions, 402 flow [2024-11-27 20:31:52,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 105 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:31:52,042 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 159 flow [2024-11-27 20:31:52,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2024-11-27 20:31:52,042 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-27 20:31:52,043 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 159 flow [2024-11-27 20:31:52,043 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) [2024-11-27 20:31:52,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:52,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:52,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:31:52,043 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)] === [2024-11-27 20:31:52,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:52,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1748747841, now seen corresponding path program 1 times [2024-11-27 20:31:52,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:52,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769445413] [2024-11-27 20:31:52,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:52,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:52,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:52,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769445413] [2024-11-27 20:31:52,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769445413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:52,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:52,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:31:52,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944835643] [2024-11-27 20:31:52,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:52,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:52,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:52,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:52,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:52,456 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-27 20:31:52,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 159 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) [2024-11-27 20:31:52,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:52,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-27 20:31:52,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:53,034 INFO L124 PetriNetUnfolderBase]: 1041/2088 cut-off events. [2024-11-27 20:31:53,034 INFO L125 PetriNetUnfolderBase]: For 3461/3461 co-relation queries the response was YES. [2024-11-27 20:31:53,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6102 conditions, 2088 events. 1041/2088 cut-off events. For 3461/3461 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14593 event pairs, 184 based on Foata normal form. 58/2130 useless extension candidates. Maximal degree in co-relation 6087. Up to 677 conditions per place. [2024-11-27 20:31:53,058 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 34 selfloop transitions, 10 changer transitions 40/99 dead transitions. [2024-11-27 20:31:53,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 99 transitions, 645 flow [2024-11-27 20:31:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:31:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:31:53,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 275 transitions. [2024-11-27 20:31:53,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-27 20:31:53,061 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 159 flow. Second operand 10 states and 275 transitions. [2024-11-27 20:31:53,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 99 transitions, 645 flow [2024-11-27 20:31:53,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 99 transitions, 567 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-27 20:31:53,095 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 221 flow [2024-11-27 20:31:53,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=221, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-11-27 20:31:53,096 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-27 20:31:53,097 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 221 flow [2024-11-27 20:31:53,097 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) [2024-11-27 20:31:53,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:53,097 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:53,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:31:53,098 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)] === [2024-11-27 20:31:53,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:53,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1002011331, now seen corresponding path program 1 times [2024-11-27 20:31:53,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:53,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781508196] [2024-11-27 20:31:53,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:53,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:53,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:53,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781508196] [2024-11-27 20:31:53,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781508196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:53,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:53,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:31:53,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686110980] [2024-11-27 20:31:53,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:53,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:53,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:53,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:53,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:53,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-27 20:31:53,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 221 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) [2024-11-27 20:31:53,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:53,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-27 20:31:53,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:53,943 INFO L124 PetriNetUnfolderBase]: 987/2035 cut-off events. [2024-11-27 20:31:53,943 INFO L125 PetriNetUnfolderBase]: For 5962/5971 co-relation queries the response was YES. [2024-11-27 20:31:53,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6481 conditions, 2035 events. 987/2035 cut-off events. For 5962/5971 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 14577 event pairs, 160 based on Foata normal form. 67/2092 useless extension candidates. Maximal degree in co-relation 6460. Up to 653 conditions per place. [2024-11-27 20:31:53,968 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 38 selfloop transitions, 12 changer transitions 42/107 dead transitions. [2024-11-27 20:31:53,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 107 transitions, 751 flow [2024-11-27 20:31:53,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:31:53,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:31:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2024-11-27 20:31:53,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727 [2024-11-27 20:31:53,973 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 221 flow. Second operand 10 states and 274 transitions. [2024-11-27 20:31:53,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 107 transitions, 751 flow [2024-11-27 20:31:53,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 107 transitions, 695 flow, removed 28 selfloop flow, removed 6 redundant places. [2024-11-27 20:31:53,994 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 311 flow [2024-11-27 20:31:53,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-11-27 20:31:54,030 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 23 predicate places. [2024-11-27 20:31:54,030 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 311 flow [2024-11-27 20:31:54,030 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) [2024-11-27 20:31:54,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:54,030 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:54,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:31:54,030 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)] === [2024-11-27 20:31:54,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:54,031 INFO L85 PathProgramCache]: Analyzing trace with hash -610066434, now seen corresponding path program 1 times [2024-11-27 20:31:54,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:54,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146867609] [2024-11-27 20:31:54,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:54,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:54,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146867609] [2024-11-27 20:31:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146867609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:54,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:54,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:31:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825674392] [2024-11-27 20:31:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:54,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:31:54,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:54,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:31:54,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:31:54,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-27 20:31:54,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-11-27 20:31:54,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:54,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-27 20:31:54,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:54,523 INFO L124 PetriNetUnfolderBase]: 1217/2455 cut-off events. [2024-11-27 20:31:54,523 INFO L125 PetriNetUnfolderBase]: For 3760/3834 co-relation queries the response was YES. [2024-11-27 20:31:54,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6241 conditions, 2455 events. 1217/2455 cut-off events. For 3760/3834 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 17568 event pairs, 226 based on Foata normal form. 140/2471 useless extension candidates. Maximal degree in co-relation 6215. Up to 1121 conditions per place. [2024-11-27 20:31:54,552 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 27 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-11-27 20:31:54,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 409 flow [2024-11-27 20:31:54,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:31:54,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:31:54,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-27 20:31:54,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-11-27 20:31:54,553 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 311 flow. Second operand 4 states and 122 transitions. [2024-11-27 20:31:54,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 409 flow [2024-11-27 20:31:54,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 387 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-27 20:31:54,574 INFO L231 Difference]: Finished difference. Result has 66 places, 53 transitions, 327 flow [2024-11-27 20:31:54,575 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=327, PETRI_PLACES=66, PETRI_TRANSITIONS=53} [2024-11-27 20:31:54,575 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-27 20:31:54,575 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 53 transitions, 327 flow [2024-11-27 20:31:54,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-11-27 20:31:54,576 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:54,576 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] [2024-11-27 20:31:54,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:31:54,576 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)] === [2024-11-27 20:31:54,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:54,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1212831000, now seen corresponding path program 1 times [2024-11-27 20:31:54,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:54,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858300805] [2024-11-27 20:31:54,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:54,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:54,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:54,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858300805] [2024-11-27 20:31:54,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858300805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:54,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:54,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:31:54,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775009869] [2024-11-27 20:31:54,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:54,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:54,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:54,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:54,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:54,814 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-27 20:31:54,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 53 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-11-27 20:31:54,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:54,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-27 20:31:54,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:55,499 INFO L124 PetriNetUnfolderBase]: 1959/3996 cut-off events. [2024-11-27 20:31:55,499 INFO L125 PetriNetUnfolderBase]: For 7655/7740 co-relation queries the response was YES. [2024-11-27 20:31:55,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12146 conditions, 3996 events. 1959/3996 cut-off events. For 7655/7740 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 32057 event pairs, 531 based on Foata normal form. 126/3798 useless extension candidates. Maximal degree in co-relation 12120. Up to 1124 conditions per place. [2024-11-27 20:31:55,541 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 50 selfloop transitions, 22 changer transitions 22/113 dead transitions. [2024-11-27 20:31:55,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 113 transitions, 828 flow [2024-11-27 20:31:55,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:31:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:31:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2024-11-27 20:31:55,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727 [2024-11-27 20:31:55,545 INFO L175 Difference]: Start difference. First operand has 66 places, 53 transitions, 327 flow. Second operand 10 states and 274 transitions. [2024-11-27 20:31:55,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 113 transitions, 828 flow [2024-11-27 20:31:55,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 113 transitions, 822 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-27 20:31:55,567 INFO L231 Difference]: Finished difference. Result has 80 places, 60 transitions, 479 flow [2024-11-27 20:31:55,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=479, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2024-11-27 20:31:55,568 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2024-11-27 20:31:55,569 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 479 flow [2024-11-27 20:31:55,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-11-27 20:31:55,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:55,570 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] [2024-11-27 20:31:55,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:31:55,570 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)] === [2024-11-27 20:31:55,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:55,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2056218684, now seen corresponding path program 1 times [2024-11-27 20:31:55,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:55,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170937726] [2024-11-27 20:31:55,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:55,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:55,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:55,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:55,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170937726] [2024-11-27 20:31:55,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170937726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:55,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:55,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:31:55,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946934018] [2024-11-27 20:31:55,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:55,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:55,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:55,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:55,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:31:55,766 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-27 20:31:55,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 479 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:55,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:55,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-27 20:31:55,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:56,214 INFO L124 PetriNetUnfolderBase]: 1419/2807 cut-off events. [2024-11-27 20:31:56,214 INFO L125 PetriNetUnfolderBase]: For 3708/4152 co-relation queries the response was YES. [2024-11-27 20:31:56,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7830 conditions, 2807 events. 1419/2807 cut-off events. For 3708/4152 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 20083 event pairs, 128 based on Foata normal form. 191/2877 useless extension candidates. Maximal degree in co-relation 7797. Up to 1148 conditions per place. [2024-11-27 20:31:56,240 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 34 selfloop transitions, 8 changer transitions 5/81 dead transitions. [2024-11-27 20:31:56,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 81 transitions, 631 flow [2024-11-27 20:31:56,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:31:56,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 20:31:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-11-27 20:31:56,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-27 20:31:56,241 INFO L175 Difference]: Start difference. First operand has 80 places, 60 transitions, 479 flow. Second operand 5 states and 154 transitions. [2024-11-27 20:31:56,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 81 transitions, 631 flow [2024-11-27 20:31:56,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 81 transitions, 578 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-11-27 20:31:56,263 INFO L231 Difference]: Finished difference. Result has 85 places, 59 transitions, 442 flow [2024-11-27 20:31:56,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=442, PETRI_PLACES=85, PETRI_TRANSITIONS=59} [2024-11-27 20:31:56,265 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 37 predicate places. [2024-11-27 20:31:56,266 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 59 transitions, 442 flow [2024-11-27 20:31:56,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:56,267 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:56,267 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:56,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:31:56,267 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)] === [2024-11-27 20:31:56,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:56,269 INFO L85 PathProgramCache]: Analyzing trace with hash 694952140, now seen corresponding path program 1 times [2024-11-27 20:31:56,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:56,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834845570] [2024-11-27 20:31:56,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:56,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:56,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834845570] [2024-11-27 20:31:56,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834845570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:56,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:56,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:31:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874401471] [2024-11-27 20:31:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:56,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:56,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:56,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:56,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:56,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-27 20:31:56,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 59 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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) [2024-11-27 20:31:56,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:56,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-27 20:31:56,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:57,176 INFO L124 PetriNetUnfolderBase]: 1700/3653 cut-off events. [2024-11-27 20:31:57,176 INFO L125 PetriNetUnfolderBase]: For 10689/11068 co-relation queries the response was YES. [2024-11-27 20:31:57,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12166 conditions, 3653 events. 1700/3653 cut-off events. For 10689/11068 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 30331 event pairs, 617 based on Foata normal form. 93/3363 useless extension candidates. Maximal degree in co-relation 12130. Up to 994 conditions per place. [2024-11-27 20:31:57,221 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 35 selfloop transitions, 12 changer transitions 20/90 dead transitions. [2024-11-27 20:31:57,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 90 transitions, 761 flow [2024-11-27 20:31:57,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:31:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:31:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-11-27 20:31:57,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2024-11-27 20:31:57,223 INFO L175 Difference]: Start difference. First operand has 85 places, 59 transitions, 442 flow. Second operand 6 states and 170 transitions. [2024-11-27 20:31:57,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 90 transitions, 761 flow [2024-11-27 20:31:57,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 90 transitions, 723 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-11-27 20:31:57,253 INFO L231 Difference]: Finished difference. Result has 84 places, 52 transitions, 381 flow [2024-11-27 20:31:57,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=381, PETRI_PLACES=84, PETRI_TRANSITIONS=52} [2024-11-27 20:31:57,254 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 36 predicate places. [2024-11-27 20:31:57,256 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 52 transitions, 381 flow [2024-11-27 20:31:57,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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) [2024-11-27 20:31:57,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:57,257 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:57,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:31:57,257 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)] === [2024-11-27 20:31:57,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash -763743992, now seen corresponding path program 2 times [2024-11-27 20:31:57,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:57,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874837919] [2024-11-27 20:31:57,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:57,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:57,289 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:31:57,293 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:31:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:57,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:57,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874837919] [2024-11-27 20:31:57,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874837919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:57,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:57,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:31:57,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227996582] [2024-11-27 20:31:57,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:57,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:57,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:57,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:57,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:57,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-27 20:31:57,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 52 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-27 20:31:57,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:57,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-27 20:31:57,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:57,896 INFO L124 PetriNetUnfolderBase]: 1028/1959 cut-off events. [2024-11-27 20:31:57,897 INFO L125 PetriNetUnfolderBase]: For 2849/3755 co-relation queries the response was YES. [2024-11-27 20:31:57,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5896 conditions, 1959 events. 1028/1959 cut-off events. For 2849/3755 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 12912 event pairs, 58 based on Foata normal form. 163/2003 useless extension candidates. Maximal degree in co-relation 5861. Up to 840 conditions per place. [2024-11-27 20:31:57,911 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 26 selfloop transitions, 11 changer transitions 14/71 dead transitions. [2024-11-27 20:31:57,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 71 transitions, 517 flow [2024-11-27 20:31:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:31:57,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:31:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-11-27 20:31:57,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2024-11-27 20:31:57,913 INFO L175 Difference]: Start difference. First operand has 84 places, 52 transitions, 381 flow. Second operand 6 states and 178 transitions. [2024-11-27 20:31:57,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 71 transitions, 517 flow [2024-11-27 20:31:57,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 71 transitions, 457 flow, removed 12 selfloop flow, removed 11 redundant places. [2024-11-27 20:31:57,921 INFO L231 Difference]: Finished difference. Result has 75 places, 43 transitions, 263 flow [2024-11-27 20:31:57,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=263, PETRI_PLACES=75, PETRI_TRANSITIONS=43} [2024-11-27 20:31:57,923 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-11-27 20:31:57,924 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 43 transitions, 263 flow [2024-11-27 20:31:57,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-27 20:31:57,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:57,925 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, 1] [2024-11-27 20:31:57,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:31:57,926 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)] === [2024-11-27 20:31:57,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:57,926 INFO L85 PathProgramCache]: Analyzing trace with hash -82355899, now seen corresponding path program 1 times [2024-11-27 20:31:57,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:57,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128032188] [2024-11-27 20:31:57,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:57,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:58,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:58,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:58,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128032188] [2024-11-27 20:31:58,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128032188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:58,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:58,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:31:58,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801139304] [2024-11-27 20:31:58,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:58,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:58,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:58,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:58,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:58,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-27 20:31:58,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 43 transitions, 263 flow. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2024-11-27 20:31:58,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:58,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-27 20:31:58,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:58,352 INFO L124 PetriNetUnfolderBase]: 198/440 cut-off events. [2024-11-27 20:31:58,352 INFO L125 PetriNetUnfolderBase]: For 788/800 co-relation queries the response was YES. [2024-11-27 20:31:58,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 440 events. 198/440 cut-off events. For 788/800 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2101 event pairs, 50 based on Foata normal form. 8/428 useless extension candidates. Maximal degree in co-relation 1375. Up to 186 conditions per place. [2024-11-27 20:31:58,355 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2024-11-27 20:31:58,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 56 transitions, 378 flow [2024-11-27 20:31:58,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:31:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 20:31:58,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2024-11-27 20:31:58,358 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5292207792207793 [2024-11-27 20:31:58,358 INFO L175 Difference]: Start difference. First operand has 75 places, 43 transitions, 263 flow. Second operand 7 states and 163 transitions. [2024-11-27 20:31:58,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 56 transitions, 378 flow [2024-11-27 20:31:58,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 250 flow, removed 21 selfloop flow, removed 23 redundant places. [2024-11-27 20:31:58,365 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-11-27 20:31:58,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-11-27 20:31:58,365 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-11-27 20:31:58,365 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-11-27 20:31:58,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2024-11-27 20:31:58,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-27 20:31:58,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-27 20:31:58,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-27 20:31:58,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-27 20:31:58,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-27 20:31:58,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:31:58,375 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:58,379 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 20:31:58,379 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:31:58,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:31:58 BasicIcfg [2024-11-27 20:31:58,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:31:58,387 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:31:58,387 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:31:58,387 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:31:58,388 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:31:49" (3/4) ... [2024-11-27 20:31:58,391 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:31:58,395 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-27 20:31:58,395 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-27 20:31:58,395 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-27 20:31:58,402 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-27 20:31:58,403 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-27 20:31:58,403 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:31:58,403 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 20:31:58,499 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:31:58,500 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:31:58,500 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:31:58,501 INFO L158 Benchmark]: Toolchain (without parser) took 9847.44ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 99.4MB in the beginning and 168.3MB in the end (delta: -68.9MB). Peak memory consumption was 199.4MB. Max. memory is 16.1GB. [2024-11-27 20:31:58,502 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:31:58,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.14ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 79.2MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:31:58,504 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.13ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 77.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:31:58,504 INFO L158 Benchmark]: Boogie Preprocessor took 45.95ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 75.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:31:58,505 INFO L158 Benchmark]: RCFGBuilder took 615.58ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 57.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:31:58,506 INFO L158 Benchmark]: TraceAbstraction took 8449.00ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 57.2MB in the beginning and 172.0MB in the end (delta: -114.8MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. [2024-11-27 20:31:58,506 INFO L158 Benchmark]: Witness Printer took 113.06ms. Allocated memory is still 411.0MB. Free memory was 172.0MB in the beginning and 168.3MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:31:58,507 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.14ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 79.2MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.13ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 77.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.95ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 75.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 615.58ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 57.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8449.00ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 57.2MB in the beginning and 172.0MB in the end (delta: -114.8MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. * Witness Printer took 113.06ms. Allocated memory is still 411.0MB. Free memory was 172.0MB in the beginning and 168.3MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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, 68 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: 8.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 387 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358 mSDsluCounter, 281 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 853 IncrementalHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 93 mSDtfsCounter, 853 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=479occurred in iteration=6, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 982 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! [2024-11-27 20:31:58,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c10572-8c80-4dfa-815b-6870e9275d03/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE