./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas.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_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/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_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/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_9b3e0508-77b2-45e6-a950-25ded0969291/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 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:40:17,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:40:17,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 02:40:17,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:40:17,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:40:18,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:40:18,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:40:18,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:40:18,029 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:40:18,029 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:40:18,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:40:18,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:40:18,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:40:18,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:40:18,031 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:40:18,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:40:18,032 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:40:18,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:40:18,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:40:18,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:40:18,032 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:40:18,032 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:40:18,032 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:40:18,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:40:18,033 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:40:18,033 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:40:18,033 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:40:18,034 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:40:18,034 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:40:18,034 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:40:18,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:40:18,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:40:18,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:40:18,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:18,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:40:18,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:18,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:40:18,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:40:18,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:40:18,036 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_9b3e0508-77b2-45e6-a950-25ded0969291/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 -> 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 [2024-11-28 02:40:18,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:40:18,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:40:18,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:40:18,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:40:18,466 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:40:18,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-28 02:40:21,463 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/data/516f0af39/7d3704f43a7b4266b00b0116e2310371/FLAG3d774a7a5 [2024-11-28 02:40:21,807 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:40:21,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-28 02:40:21,829 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/data/516f0af39/7d3704f43a7b4266b00b0116e2310371/FLAG3d774a7a5 [2024-11-28 02:40:22,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/data/516f0af39/7d3704f43a7b4266b00b0116e2310371 [2024-11-28 02:40:22,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:40:22,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:40:22,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:40:22,046 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:40:22,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:40:22,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f06f551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22, skipping insertion in model container [2024-11-28 02:40:22,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,108 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:40:22,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:40:22,503 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:40:22,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:40:22,650 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:40:22,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22 WrapperNode [2024-11-28 02:40:22,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:40:22,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:40:22,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:40:22,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:40:22,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,720 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 253 [2024-11-28 02:40:22,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:40:22,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:40:22,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:40:22,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:40:22,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,739 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,777 INFO L175 MemorySlicer]: Split 24 memory accesses to 4 slices as follows [2, 12, 4, 6]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 2, 1, 1]. The 9 writes are split as follows [0, 5, 2, 2]. [2024-11-28 02:40:22,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,794 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:40:22,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:40:22,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:40:22,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:40:22,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (1/1) ... [2024-11-28 02:40:22,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:22,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:40:22,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:40:22,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3e0508-77b2-45e6-a950-25ded0969291/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:40:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:40:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:40:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:40:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:40:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-28 02:40:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-28 02:40:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:40:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:40:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:40:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:40:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:40:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:40:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:40:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:40:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:40:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:40:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:40:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:40:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:40:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:40:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:40:22,913 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:40:23,097 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:40:23,099 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:40:23,907 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:40:23,907 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:40:24,879 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:40:24,880 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 02:40:24,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:24 BoogieIcfgContainer [2024-11-28 02:40:24,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:40:24,885 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:40:24,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:40:24,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:40:24,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:40:22" (1/3) ... [2024-11-28 02:40:24,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a1153c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:24, skipping insertion in model container [2024-11-28 02:40:24,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:22" (2/3) ... [2024-11-28 02:40:24,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a1153c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:24, skipping insertion in model container [2024-11-28 02:40:24,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:24" (3/3) ... [2024-11-28 02:40:24,897 INFO L128 eAbstractionObserver]: Analyzing ICFG 26_stack_cas.i [2024-11-28 02:40:24,917 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:40:24,918 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 26_stack_cas.i that has 2 procedures, 74 locations, 1 initial locations, 3 loop locations, and 40 error locations. [2024-11-28 02:40:24,918 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:40:25,075 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:40:25,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 83 transitions, 170 flow [2024-11-28 02:40:25,226 INFO L124 PetriNetUnfolderBase]: 9/87 cut-off events. [2024-11-28 02:40:25,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:40:25,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 9/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 203 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 80. Up to 3 conditions per place. [2024-11-28 02:40:25,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 83 transitions, 170 flow [2024-11-28 02:40:25,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 83 transitions, 170 flow [2024-11-28 02:40:25,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:40:25,285 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;@3738b76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:40:25,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-11-28 02:40:25,295 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:40:25,295 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-28 02:40:25,295 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:40:25,296 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:25,296 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 02:40:25,297 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-28 02:40:25,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:25,304 INFO L85 PathProgramCache]: Analyzing trace with hash 810351, now seen corresponding path program 1 times [2024-11-28 02:40:25,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:25,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589653655] [2024-11-28 02:40:25,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:25,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:26,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:26,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589653655] [2024-11-28 02:40:26,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589653655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:26,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:26,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:40:26,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093713170] [2024-11-28 02:40:26,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:26,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:40:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:26,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:40:26,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:40:26,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 83 [2024-11-28 02:40:26,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 83 transitions, 170 flow. Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:26,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:26,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 83 [2024-11-28 02:40:26,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:26,487 INFO L124 PetriNetUnfolderBase]: 99/259 cut-off events. [2024-11-28 02:40:26,487 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:40:26,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 259 events. 99/259 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 972 event pairs, 75 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 458. Up to 215 conditions per place. [2024-11-28 02:40:26,491 INFO L140 encePairwiseOnDemand]: 67/83 looper letters, 46 selfloop transitions, 0 changer transitions 0/64 dead transitions. [2024-11-28 02:40:26,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 224 flow [2024-11-28 02:40:26,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:40:26,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:40:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 100 transitions. [2024-11-28 02:40:26,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6024096385542169 [2024-11-28 02:40:26,510 INFO L175 Difference]: Start difference. First operand has 77 places, 83 transitions, 170 flow. Second operand 2 states and 100 transitions. [2024-11-28 02:40:26,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 224 flow [2024-11-28 02:40:26,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:40:26,523 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 132 flow [2024-11-28 02:40:26,527 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2024-11-28 02:40:26,530 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -15 predicate places. [2024-11-28 02:40:26,534 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 132 flow [2024-11-28 02:40:26,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:26,535 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:26,535 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:40:26,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:40:26,535 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-28 02:40:26,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash 778896143, now seen corresponding path program 1 times [2024-11-28 02:40:26,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:26,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119688971] [2024-11-28 02:40:26,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:26,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:27,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:27,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119688971] [2024-11-28 02:40:27,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119688971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:27,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:27,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:40:27,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780028742] [2024-11-28 02:40:27,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:27,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:27,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:27,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:27,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:27,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 83 [2024-11-28 02:40:27,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:27,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:27,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 83 [2024-11-28 02:40:27,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:27,552 INFO L124 PetriNetUnfolderBase]: 155/403 cut-off events. [2024-11-28 02:40:27,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:40:27,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 403 events. 155/403 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1576 event pairs, 61 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 741. Up to 171 conditions per place. [2024-11-28 02:40:27,561 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 71 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2024-11-28 02:40:27,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 92 transitions, 336 flow [2024-11-28 02:40:27,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:27,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:40:27,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-11-28 02:40:27,566 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5341365461847389 [2024-11-28 02:40:27,566 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 132 flow. Second operand 3 states and 133 transitions. [2024-11-28 02:40:27,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 92 transitions, 336 flow [2024-11-28 02:40:27,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 92 transitions, 336 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:40:27,571 INFO L231 Difference]: Finished difference. Result has 63 places, 64 transitions, 145 flow [2024-11-28 02:40:27,571 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=63, PETRI_TRANSITIONS=64} [2024-11-28 02:40:27,573 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -14 predicate places. [2024-11-28 02:40:27,573 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 64 transitions, 145 flow [2024-11-28 02:40:27,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:27,574 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:27,575 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:40:27,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:40:27,575 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-28 02:40:27,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:27,577 INFO L85 PathProgramCache]: Analyzing trace with hash 778896144, now seen corresponding path program 1 times [2024-11-28 02:40:27,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:27,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302020621] [2024-11-28 02:40:27,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:27,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:28,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:28,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302020621] [2024-11-28 02:40:28,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302020621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:28,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:28,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:40:28,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606804376] [2024-11-28 02:40:28,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:28,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:28,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:28,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:28,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:28,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 83 [2024-11-28 02:40:28,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 64 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:28,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:28,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 83 [2024-11-28 02:40:28,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:28,345 INFO L124 PetriNetUnfolderBase]: 149/389 cut-off events. [2024-11-28 02:40:28,345 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 02:40:28,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 389 events. 149/389 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1496 event pairs, 117 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 734. Up to 324 conditions per place. [2024-11-28 02:40:28,351 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 43 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2024-11-28 02:40:28,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 229 flow [2024-11-28 02:40:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:40:28,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-28 02:40:28,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40562248995983935 [2024-11-28 02:40:28,355 INFO L175 Difference]: Start difference. First operand has 63 places, 64 transitions, 145 flow. Second operand 3 states and 101 transitions. [2024-11-28 02:40:28,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 229 flow [2024-11-28 02:40:28,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 62 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:40:28,357 INFO L231 Difference]: Finished difference. Result has 62 places, 62 transitions, 140 flow [2024-11-28 02:40:28,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=62, PETRI_TRANSITIONS=62} [2024-11-28 02:40:28,360 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -15 predicate places. [2024-11-28 02:40:28,361 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 62 transitions, 140 flow [2024-11-28 02:40:28,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:28,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:28,361 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-28 02:40:28,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:40:28,362 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-28 02:40:28,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:28,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1624055694, now seen corresponding path program 1 times [2024-11-28 02:40:28,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:28,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789580941] [2024-11-28 02:40:28,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:28,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:40:28,723 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:40:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:40:28,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:40:28,763 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:40:28,764 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (79 of 80 remaining) [2024-11-28 02:40:28,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 80 remaining) [2024-11-28 02:40:28,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 80 remaining) [2024-11-28 02:40:28,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 80 remaining) [2024-11-28 02:40:28,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 80 remaining) [2024-11-28 02:40:28,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 80 remaining) [2024-11-28 02:40:28,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 80 remaining) [2024-11-28 02:40:28,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 80 remaining) [2024-11-28 02:40:28,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 80 remaining) [2024-11-28 02:40:28,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 80 remaining) [2024-11-28 02:40:28,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 80 remaining) [2024-11-28 02:40:28,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 80 remaining) [2024-11-28 02:40:28,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 80 remaining) [2024-11-28 02:40:28,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 80 remaining) [2024-11-28 02:40:28,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 80 remaining) [2024-11-28 02:40:28,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 80 remaining) [2024-11-28 02:40:28,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 80 remaining) [2024-11-28 02:40:28,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 80 remaining) [2024-11-28 02:40:28,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 80 remaining) [2024-11-28 02:40:28,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 80 remaining) [2024-11-28 02:40:28,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 80 remaining) [2024-11-28 02:40:28,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (56 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (51 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (50 of 80 remaining) [2024-11-28 02:40:28,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (39 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 80 remaining) [2024-11-28 02:40:28,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 80 remaining) [2024-11-28 02:40:28,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 80 remaining) [2024-11-28 02:40:28,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 80 remaining) [2024-11-28 02:40:28,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 80 remaining) [2024-11-28 02:40:28,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 80 remaining) [2024-11-28 02:40:28,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 80 remaining) [2024-11-28 02:40:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 80 remaining) [2024-11-28 02:40:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 80 remaining) [2024-11-28 02:40:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 80 remaining) [2024-11-28 02:40:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 80 remaining) [2024-11-28 02:40:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 80 remaining) [2024-11-28 02:40:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 80 remaining) [2024-11-28 02:40:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (16 of 80 remaining) [2024-11-28 02:40:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 80 remaining) [2024-11-28 02:40:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 80 remaining) [2024-11-28 02:40:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 80 remaining) [2024-11-28 02:40:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 80 remaining) [2024-11-28 02:40:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (11 of 80 remaining) [2024-11-28 02:40:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (10 of 80 remaining) [2024-11-28 02:40:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 80 remaining) [2024-11-28 02:40:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 80 remaining) [2024-11-28 02:40:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 80 remaining) [2024-11-28 02:40:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 80 remaining) [2024-11-28 02:40:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 80 remaining) [2024-11-28 02:40:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 80 remaining) [2024-11-28 02:40:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 80 remaining) [2024-11-28 02:40:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 80 remaining) [2024-11-28 02:40:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 80 remaining) [2024-11-28 02:40:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 80 remaining) [2024-11-28 02:40:28,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:40:28,777 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 02:40:28,780 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:40:28,781 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 02:40:28,922 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:40:28,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 159 transitions, 328 flow [2024-11-28 02:40:28,964 INFO L124 PetriNetUnfolderBase]: 18/168 cut-off events. [2024-11-28 02:40:28,964 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 02:40:28,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 168 events. 18/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 626 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2024-11-28 02:40:28,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 159 transitions, 328 flow [2024-11-28 02:40:28,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 159 transitions, 328 flow [2024-11-28 02:40:28,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:40:28,973 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;@3738b76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:40:28,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2024-11-28 02:40:28,976 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:40:28,976 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-28 02:40:28,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:40:28,977 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:28,977 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 02:40:28,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-28 02:40:28,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:28,978 INFO L85 PathProgramCache]: Analyzing trace with hash 968238, now seen corresponding path program 1 times [2024-11-28 02:40:28,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:28,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064120633] [2024-11-28 02:40:28,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:28,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:29,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:29,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064120633] [2024-11-28 02:40:29,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064120633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:29,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:29,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:40:29,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929178133] [2024-11-28 02:40:29,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:29,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:40:29,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:29,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:40:29,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:40:29,454 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 159 [2024-11-28 02:40:29,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 159 transitions, 328 flow. Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:29,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:29,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 159 [2024-11-28 02:40:29,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:31,864 INFO L124 PetriNetUnfolderBase]: 9422/15423 cut-off events. [2024-11-28 02:40:31,864 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2024-11-28 02:40:31,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29547 conditions, 15423 events. 9422/15423 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 110737 event pairs, 7467 based on Foata normal form. 0/8920 useless extension candidates. Maximal degree in co-relation 22353. Up to 14002 conditions per place. [2024-11-28 02:40:32,042 INFO L140 encePairwiseOnDemand]: 128/159 looper letters, 89 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2024-11-28 02:40:32,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 124 transitions, 436 flow [2024-11-28 02:40:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:40:32,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:40:32,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 192 transitions. [2024-11-28 02:40:32,047 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6037735849056604 [2024-11-28 02:40:32,047 INFO L175 Difference]: Start difference. First operand has 146 places, 159 transitions, 328 flow. Second operand 2 states and 192 transitions. [2024-11-28 02:40:32,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 124 transitions, 436 flow [2024-11-28 02:40:32,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 124 transitions, 436 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:40:32,051 INFO L231 Difference]: Finished difference. Result has 118 places, 124 transitions, 258 flow [2024-11-28 02:40:32,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=258, PETRI_PLACES=118, PETRI_TRANSITIONS=124} [2024-11-28 02:40:32,052 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -28 predicate places. [2024-11-28 02:40:32,053 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 124 transitions, 258 flow [2024-11-28 02:40:32,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:32,054 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:32,054 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:40:32,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:40:32,054 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-28 02:40:32,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:32,056 INFO L85 PathProgramCache]: Analyzing trace with hash 930705113, now seen corresponding path program 1 times [2024-11-28 02:40:32,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:32,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937299955] [2024-11-28 02:40:32,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:32,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:32,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:32,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937299955] [2024-11-28 02:40:32,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937299955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:32,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:32,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:40:32,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648138706] [2024-11-28 02:40:32,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:32,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:32,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:32,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:32,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:32,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 159 [2024-11-28 02:40:32,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 124 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:32,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:32,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 159 [2024-11-28 02:40:32,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:36,083 INFO L124 PetriNetUnfolderBase]: 15332/24918 cut-off events. [2024-11-28 02:40:36,083 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2024-11-28 02:40:36,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47757 conditions, 24918 events. 15332/24918 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 892. Compared 186747 event pairs, 5415 based on Foata normal form. 0/14901 useless extension candidates. Maximal degree in co-relation 47752. Up to 13522 conditions per place. [2024-11-28 02:40:36,260 INFO L140 encePairwiseOnDemand]: 150/159 looper letters, 157 selfloop transitions, 5 changer transitions 0/197 dead transitions. [2024-11-28 02:40:36,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 197 transitions, 733 flow [2024-11-28 02:40:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:40:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2024-11-28 02:40:36,263 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5744234800838575 [2024-11-28 02:40:36,263 INFO L175 Difference]: Start difference. First operand has 118 places, 124 transitions, 258 flow. Second operand 3 states and 274 transitions. [2024-11-28 02:40:36,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 197 transitions, 733 flow [2024-11-28 02:40:36,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 197 transitions, 733 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:40:36,268 INFO L231 Difference]: Finished difference. Result has 121 places, 128 transitions, 297 flow [2024-11-28 02:40:36,269 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=121, PETRI_TRANSITIONS=128} [2024-11-28 02:40:36,269 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -25 predicate places. [2024-11-28 02:40:36,270 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 128 transitions, 297 flow [2024-11-28 02:40:36,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:36,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:36,270 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:40:36,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:40:36,270 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-28 02:40:36,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:36,271 INFO L85 PathProgramCache]: Analyzing trace with hash 930705114, now seen corresponding path program 1 times [2024-11-28 02:40:36,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:36,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619235585] [2024-11-28 02:40:36,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:36,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:36,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:36,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619235585] [2024-11-28 02:40:36,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619235585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:36,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:36,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:40:36,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610708693] [2024-11-28 02:40:36,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:36,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:36,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:36,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:36,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:36,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 159 [2024-11-28 02:40:36,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 128 transitions, 297 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:36,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:36,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 159 [2024-11-28 02:40:36,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:39,084 INFO L124 PetriNetUnfolderBase]: 13539/22296 cut-off events. [2024-11-28 02:40:39,084 INFO L125 PetriNetUnfolderBase]: For 1335/1335 co-relation queries the response was YES. [2024-11-28 02:40:39,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44436 conditions, 22296 events. 13539/22296 cut-off events. For 1335/1335 co-relation queries the response was YES. Maximal size of possible extension queue 806. Compared 166500 event pairs, 10880 based on Foata normal form. 0/14640 useless extension candidates. Maximal degree in co-relation 44429. Up to 20228 conditions per place. [2024-11-28 02:40:39,215 INFO L140 encePairwiseOnDemand]: 154/159 looper letters, 88 selfloop transitions, 1 changer transitions 0/124 dead transitions. [2024-11-28 02:40:39,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 124 transitions, 467 flow [2024-11-28 02:40:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:40:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-11-28 02:40:39,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4129979035639413 [2024-11-28 02:40:39,218 INFO L175 Difference]: Start difference. First operand has 121 places, 128 transitions, 297 flow. Second operand 3 states and 197 transitions. [2024-11-28 02:40:39,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 124 transitions, 467 flow [2024-11-28 02:40:39,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 124 transitions, 462 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:40:39,228 INFO L231 Difference]: Finished difference. Result has 118 places, 124 transitions, 286 flow [2024-11-28 02:40:39,229 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=118, PETRI_TRANSITIONS=124} [2024-11-28 02:40:39,229 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -28 predicate places. [2024-11-28 02:40:39,229 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 124 transitions, 286 flow [2024-11-28 02:40:39,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:39,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:39,230 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:39,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:40:39,230 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-28 02:40:39,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:39,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1671652934, now seen corresponding path program 1 times [2024-11-28 02:40:39,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:39,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756093556] [2024-11-28 02:40:39,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:39,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:39,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:39,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756093556] [2024-11-28 02:40:39,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756093556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:39,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:39,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:40:39,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781491615] [2024-11-28 02:40:39,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:39,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:39,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:39,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:39,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:39,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 159 [2024-11-28 02:40:39,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 124 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:39,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:39,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 159 [2024-11-28 02:40:39,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:42,161 INFO L124 PetriNetUnfolderBase]: 13289/21692 cut-off events. [2024-11-28 02:40:42,161 INFO L125 PetriNetUnfolderBase]: For 1302/1314 co-relation queries the response was YES. [2024-11-28 02:40:42,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42947 conditions, 21692 events. 13289/21692 cut-off events. For 1302/1314 co-relation queries the response was YES. Maximal size of possible extension queue 826. Compared 159401 event pairs, 4627 based on Foata normal form. 12/14501 useless extension candidates. Maximal degree in co-relation 42940. Up to 12796 conditions per place. [2024-11-28 02:40:42,325 INFO L140 encePairwiseOnDemand]: 148/159 looper letters, 147 selfloop transitions, 5 changer transitions 0/185 dead transitions. [2024-11-28 02:40:42,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 185 transitions, 717 flow [2024-11-28 02:40:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:42,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:40:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-11-28 02:40:42,329 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5450733752620545 [2024-11-28 02:40:42,329 INFO L175 Difference]: Start difference. First operand has 118 places, 124 transitions, 286 flow. Second operand 3 states and 260 transitions. [2024-11-28 02:40:42,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 185 transitions, 717 flow [2024-11-28 02:40:42,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 185 transitions, 716 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:40:42,338 INFO L231 Difference]: Finished difference. Result has 120 places, 124 transitions, 312 flow [2024-11-28 02:40:42,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=120, PETRI_TRANSITIONS=124} [2024-11-28 02:40:42,339 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -26 predicate places. [2024-11-28 02:40:42,339 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 124 transitions, 312 flow [2024-11-28 02:40:42,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:42,340 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:42,341 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:42,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:40:42,341 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-28 02:40:42,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:42,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1671652933, now seen corresponding path program 1 times [2024-11-28 02:40:42,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:42,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420784052] [2024-11-28 02:40:42,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:42,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:42,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:42,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420784052] [2024-11-28 02:40:42,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420784052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:42,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:42,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:40:42,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17999551] [2024-11-28 02:40:42,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:42,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:42,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:42,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:42,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:42,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 159 [2024-11-28 02:40:42,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 124 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:42,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:42,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 159 [2024-11-28 02:40:42,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:44,292 INFO L124 PetriNetUnfolderBase]: 11117/18440 cut-off events. [2024-11-28 02:40:44,292 INFO L125 PetriNetUnfolderBase]: For 1857/1857 co-relation queries the response was YES. [2024-11-28 02:40:44,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37384 conditions, 18440 events. 11117/18440 cut-off events. For 1857/1857 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 135995 event pairs, 8719 based on Foata normal form. 0/13226 useless extension candidates. Maximal degree in co-relation 37376. Up to 16474 conditions per place. [2024-11-28 02:40:44,401 INFO L140 encePairwiseOnDemand]: 150/159 looper letters, 82 selfloop transitions, 1 changer transitions 0/116 dead transitions. [2024-11-28 02:40:44,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 116 transitions, 462 flow [2024-11-28 02:40:44,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:44,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:40:44,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2024-11-28 02:40:44,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39622641509433965 [2024-11-28 02:40:44,403 INFO L175 Difference]: Start difference. First operand has 120 places, 124 transitions, 312 flow. Second operand 3 states and 189 transitions. [2024-11-28 02:40:44,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 116 transitions, 462 flow [2024-11-28 02:40:44,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 116 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:40:44,411 INFO L231 Difference]: Finished difference. Result has 112 places, 116 transitions, 288 flow [2024-11-28 02:40:44,412 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=112, PETRI_TRANSITIONS=116} [2024-11-28 02:40:44,413 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -34 predicate places. [2024-11-28 02:40:44,415 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 116 transitions, 288 flow [2024-11-28 02:40:44,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:44,416 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:44,416 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-28 02:40:44,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:40:44,417 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-28 02:40:44,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:44,417 INFO L85 PathProgramCache]: Analyzing trace with hash 804253046, now seen corresponding path program 1 times [2024-11-28 02:40:44,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:44,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572401180] [2024-11-28 02:40:44,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:44,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:40:44,893 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:40:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:40:44,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:40:44,918 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:40:44,918 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (118 of 119 remaining) [2024-11-28 02:40:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 119 remaining) [2024-11-28 02:40:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (110 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 119 remaining) [2024-11-28 02:40:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (107 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (104 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 119 remaining) [2024-11-28 02:40:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (95 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (90 of 119 remaining) [2024-11-28 02:40:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (89 of 119 remaining) [2024-11-28 02:40:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 119 remaining) [2024-11-28 02:40:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 119 remaining) [2024-11-28 02:40:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 119 remaining) [2024-11-28 02:40:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 119 remaining) [2024-11-28 02:40:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 119 remaining) [2024-11-28 02:40:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 119 remaining) [2024-11-28 02:40:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 119 remaining) [2024-11-28 02:40:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (78 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 119 remaining) [2024-11-28 02:40:44,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 119 remaining) [2024-11-28 02:40:44,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 119 remaining) [2024-11-28 02:40:44,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 119 remaining) [2024-11-28 02:40:44,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 119 remaining) [2024-11-28 02:40:44,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 119 remaining) [2024-11-28 02:40:44,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 119 remaining) [2024-11-28 02:40:44,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 119 remaining) [2024-11-28 02:40:44,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 119 remaining) [2024-11-28 02:40:44,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (55 of 119 remaining) [2024-11-28 02:40:44,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (50 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (49 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 119 remaining) [2024-11-28 02:40:44,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 119 remaining) [2024-11-28 02:40:44,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 119 remaining) [2024-11-28 02:40:44,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 119 remaining) [2024-11-28 02:40:44,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (16 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (11 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (10 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 119 remaining) [2024-11-28 02:40:44,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 119 remaining) [2024-11-28 02:40:44,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 119 remaining) [2024-11-28 02:40:44,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 119 remaining) [2024-11-28 02:40:44,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 119 remaining) [2024-11-28 02:40:44,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 119 remaining) [2024-11-28 02:40:44,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 119 remaining) [2024-11-28 02:40:44,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 119 remaining) [2024-11-28 02:40:44,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 119 remaining) [2024-11-28 02:40:44,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 119 remaining) [2024-11-28 02:40:44,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:40:44,932 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 02:40:44,932 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:40:44,932 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 02:40:45,076 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:40:45,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 235 transitions, 488 flow [2024-11-28 02:40:45,122 INFO L124 PetriNetUnfolderBase]: 27/249 cut-off events. [2024-11-28 02:40:45,122 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 02:40:45,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 249 events. 27/249 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1155 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 230. Up to 4 conditions per place. [2024-11-28 02:40:45,126 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 235 transitions, 488 flow [2024-11-28 02:40:45,132 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 235 transitions, 488 flow [2024-11-28 02:40:45,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:40:45,134 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;@3738b76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:40:45,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 158 error locations. [2024-11-28 02:40:45,136 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:40:45,137 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-28 02:40:45,137 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:40:45,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:45,137 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 02:40:45,137 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 155 more)] === [2024-11-28 02:40:45,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1201593, now seen corresponding path program 1 times [2024-11-28 02:40:45,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:45,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110362688] [2024-11-28 02:40:45,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:45,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:45,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:45,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:45,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110362688] [2024-11-28 02:40:45,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110362688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:45,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:45,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:40:45,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862493092] [2024-11-28 02:40:45,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:45,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:40:45,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:45,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:40:45,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:40:45,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 235 [2024-11-28 02:40:45,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 235 transitions, 488 flow. Second operand has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:45,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:45,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 235 [2024-11-28 02:40:45,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand