./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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-ext/26_stack_cas.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:00:39,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:00:39,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:00:39,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:00:39,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:00:39,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:00:39,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:00:39,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:00:39,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:00:39,816 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:00:39,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:00:39,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:00:39,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:00:39,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:00:39,822 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:00:39,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:00:39,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:00:39,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:00:39,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:00:39,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:00:39,824 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:00:39,825 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:00:39,825 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:00:39,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:00:39,826 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:00:39,826 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:00:39,826 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:00:39,827 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:00:39,827 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:00:39,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:00:39,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:00:39,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:00:39,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:00:39,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:00:39,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:00:39,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:00:39,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:00:39,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:00:39,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:00:39,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:00:39,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:00:39,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:00:39,831 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 [2024-11-12 16:00:40,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:00:40,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:00:40,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:00:40,097 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:00:40,098 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:00:40,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-12 16:00:41,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:00:41,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:00:41,793 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-12 16:00:41,809 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ec27afa/1ed651f2768448bcb5754ec0277b73dd/FLAG91df5f922 [2024-11-12 16:00:42,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ec27afa/1ed651f2768448bcb5754ec0277b73dd [2024-11-12 16:00:42,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:00:42,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:00:42,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:00:42,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:00:42,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:00:42,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd21dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42, skipping insertion in model container [2024-11-12 16:00:42,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,175 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:00:42,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:00:42,519 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:00:42,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:00:42,604 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:00:42,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42 WrapperNode [2024-11-12 16:00:42,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:00:42,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:00:42,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:00:42,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:00:42,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,682 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 256 [2024-11-12 16:00:42,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:00:42,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:00:42,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:00:42,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:00:42,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,732 INFO L175 MemorySlicer]: Split 24 memory accesses to 4 slices as follows [2, 6, 4, 12]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 1, 1, 2]. The 9 writes are split as follows [0, 2, 2, 5]. [2024-11-12 16:00:42,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:00:42,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:00:42,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:00:42,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:00:42,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (1/1) ... [2024-11-12 16:00:42,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:00:42,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:00:42,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:00:42,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:00:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 16:00:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 16:00:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 16:00:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 16:00:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-12 16:00:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-12 16:00:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 16:00:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 16:00:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 16:00:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 16:00:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:00:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:00:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 16:00:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 16:00:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:00:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 16:00:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 16:00:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 16:00:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:00:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:00:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:00:42,853 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:00:42,979 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:00:42,980 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:00:43,524 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:00:43,524 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:00:44,101 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:00:44,102 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 16:00:44,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:00:44 BoogieIcfgContainer [2024-11-12 16:00:44,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:00:44,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:00:44,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:00:44,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:00:44,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:00:42" (1/3) ... [2024-11-12 16:00:44,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62084822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:00:44, skipping insertion in model container [2024-11-12 16:00:44,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:00:42" (2/3) ... [2024-11-12 16:00:44,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62084822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:00:44, skipping insertion in model container [2024-11-12 16:00:44,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:00:44" (3/3) ... [2024-11-12 16:00:44,113 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas.i [2024-11-12 16:00:44,130 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:00:44,130 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2024-11-12 16:00:44,130 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:00:44,219 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:00:44,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 82 transitions, 168 flow [2024-11-12 16:00:44,292 INFO L124 PetriNetUnfolderBase]: 8/86 cut-off events. [2024-11-12 16:00:44,293 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:00:44,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 8/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 192 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 79. Up to 3 conditions per place. [2024-11-12 16:00:44,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 82 transitions, 168 flow [2024-11-12 16:00:44,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 82 transitions, 168 flow [2024-11-12 16:00:44,310 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:00:44,318 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;@3d312ec8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:00:44,319 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-11-12 16:00:44,323 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:00:44,324 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-12 16:00:44,324 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:00:44,324 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:44,325 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-12 16:00:44,325 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-12 16:00:44,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash 819038, now seen corresponding path program 1 times [2024-11-12 16:00:44,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:44,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621091486] [2024-11-12 16:00:44,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:44,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:00:45,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:00:45,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:00:45,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621091486] [2024-11-12 16:00:45,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621091486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:00:45,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:00:45,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:00:45,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236094194] [2024-11-12 16:00:45,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:00:45,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 16:00:45,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:00:45,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 16:00:45,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 16:00:45,164 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 82 [2024-11-12 16:00:45,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 82 transitions, 168 flow. Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2024-11-12 16:00:45,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:00:45,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 82 [2024-11-12 16:00:45,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:00:45,318 INFO L124 PetriNetUnfolderBase]: 99/262 cut-off events. [2024-11-12 16:00:45,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:00:45,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 262 events. 99/262 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. 3/174 useless extension candidates. Maximal degree in co-relation 461. Up to 215 conditions per place. [2024-11-12 16:00:45,323 INFO L140 encePairwiseOnDemand]: 67/82 looper letters, 46 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2024-11-12 16:00:45,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 65 transitions, 226 flow [2024-11-12 16:00:45,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 16:00:45,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 16:00:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 101 transitions. [2024-11-12 16:00:45,336 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6158536585365854 [2024-11-12 16:00:45,337 INFO L175 Difference]: Start difference. First operand has 77 places, 82 transitions, 168 flow. Second operand 2 states and 101 transitions. [2024-11-12 16:00:45,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 65 transitions, 226 flow [2024-11-12 16:00:45,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 65 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 16:00:45,347 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 134 flow [2024-11-12 16:00:45,349 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2024-11-12 16:00:45,353 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -14 predicate places. [2024-11-12 16:00:45,354 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 134 flow [2024-11-12 16:00:45,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2024-11-12 16:00:45,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:45,355 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 16:00:45,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:00:45,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-12 16:00:45,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:45,357 INFO L85 PathProgramCache]: Analyzing trace with hash 787242620, now seen corresponding path program 1 times [2024-11-12 16:00:45,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:45,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582641059] [2024-11-12 16:00:45,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:45,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:00:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:00:45,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:00:45,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582641059] [2024-11-12 16:00:45,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582641059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:00:45,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:00:45,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:00:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741676357] [2024-11-12 16:00:45,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:00:45,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:00:45,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:00:45,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:00:45,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:00:45,899 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 82 [2024-11-12 16:00:45,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-12 16:00:45,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:00:45,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 82 [2024-11-12 16:00:45,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:00:46,118 INFO L124 PetriNetUnfolderBase]: 155/409 cut-off events. [2024-11-12 16:00:46,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:00:46,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 409 events. 155/409 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1626 event pairs, 61 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 747. Up to 171 conditions per place. [2024-11-12 16:00:46,122 INFO L140 encePairwiseOnDemand]: 77/82 looper letters, 71 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2024-11-12 16:00:46,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 93 transitions, 338 flow [2024-11-12 16:00:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:00:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:00:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-12 16:00:46,124 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5528455284552846 [2024-11-12 16:00:46,125 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 134 flow. Second operand 3 states and 136 transitions. [2024-11-12 16:00:46,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 93 transitions, 338 flow [2024-11-12 16:00:46,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 93 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 16:00:46,128 INFO L231 Difference]: Finished difference. Result has 64 places, 65 transitions, 147 flow [2024-11-12 16:00:46,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=64, PETRI_TRANSITIONS=65} [2024-11-12 16:00:46,129 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -13 predicate places. [2024-11-12 16:00:46,129 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 65 transitions, 147 flow [2024-11-12 16:00:46,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-12 16:00:46,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:46,130 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 16:00:46,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:00:46,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-12 16:00:46,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:46,131 INFO L85 PathProgramCache]: Analyzing trace with hash 787242621, now seen corresponding path program 1 times [2024-11-12 16:00:46,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:46,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915710342] [2024-11-12 16:00:46,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:46,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:00:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:00:46,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:00:46,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915710342] [2024-11-12 16:00:46,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915710342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:00:46,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:00:46,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:00:46,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066670589] [2024-11-12 16:00:46,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:00:46,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:00:46,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:00:46,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:00:46,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:00:46,522 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 82 [2024-11-12 16:00:46,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 65 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-12 16:00:46,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:00:46,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 82 [2024-11-12 16:00:46,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:00:46,636 INFO L124 PetriNetUnfolderBase]: 149/395 cut-off events. [2024-11-12 16:00:46,637 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 16:00:46,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 395 events. 149/395 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1531 event pairs, 117 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 740. Up to 324 conditions per place. [2024-11-12 16:00:46,640 INFO L140 encePairwiseOnDemand]: 79/82 looper letters, 43 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2024-11-12 16:00:46,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 63 transitions, 231 flow [2024-11-12 16:00:46,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:00:46,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:00:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-12 16:00:46,642 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42276422764227645 [2024-11-12 16:00:46,642 INFO L175 Difference]: Start difference. First operand has 64 places, 65 transitions, 147 flow. Second operand 3 states and 104 transitions. [2024-11-12 16:00:46,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 63 transitions, 231 flow [2024-11-12 16:00:46,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 63 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:00:46,644 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 142 flow [2024-11-12 16:00:46,644 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2024-11-12 16:00:46,645 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -14 predicate places. [2024-11-12 16:00:46,645 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 142 flow [2024-11-12 16:00:46,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-12 16:00:46,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:46,646 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-12 16:00:46,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:00:46,646 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-12 16:00:46,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:46,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1365305447, now seen corresponding path program 1 times [2024-11-12 16:00:46,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:46,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026448976] [2024-11-12 16:00:46,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:46,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:00:46,987 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 16:00:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:00:47,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 16:00:47,040 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 16:00:47,042 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (79 of 80 remaining) [2024-11-12 16:00:47,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 80 remaining) [2024-11-12 16:00:47,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 80 remaining) [2024-11-12 16:00:47,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 80 remaining) [2024-11-12 16:00:47,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 80 remaining) [2024-11-12 16:00:47,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 80 remaining) [2024-11-12 16:00:47,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 80 remaining) [2024-11-12 16:00:47,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 80 remaining) [2024-11-12 16:00:47,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 80 remaining) [2024-11-12 16:00:47,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 80 remaining) [2024-11-12 16:00:47,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 80 remaining) [2024-11-12 16:00:47,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 80 remaining) [2024-11-12 16:00:47,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 80 remaining) [2024-11-12 16:00:47,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 80 remaining) [2024-11-12 16:00:47,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 80 remaining) [2024-11-12 16:00:47,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 80 remaining) [2024-11-12 16:00:47,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 80 remaining) [2024-11-12 16:00:47,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 80 remaining) [2024-11-12 16:00:47,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 80 remaining) [2024-11-12 16:00:47,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 80 remaining) [2024-11-12 16:00:47,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 80 remaining) [2024-11-12 16:00:47,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 80 remaining) [2024-11-12 16:00:47,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 80 remaining) [2024-11-12 16:00:47,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (56 of 80 remaining) [2024-11-12 16:00:47,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 80 remaining) [2024-11-12 16:00:47,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 80 remaining) [2024-11-12 16:00:47,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (53 of 80 remaining) [2024-11-12 16:00:47,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 80 remaining) [2024-11-12 16:00:47,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 80 remaining) [2024-11-12 16:00:47,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (50 of 80 remaining) [2024-11-12 16:00:47,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 80 remaining) [2024-11-12 16:00:47,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 80 remaining) [2024-11-12 16:00:47,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 80 remaining) [2024-11-12 16:00:47,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 80 remaining) [2024-11-12 16:00:47,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 80 remaining) [2024-11-12 16:00:47,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 80 remaining) [2024-11-12 16:00:47,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 80 remaining) [2024-11-12 16:00:47,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 80 remaining) [2024-11-12 16:00:47,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 80 remaining) [2024-11-12 16:00:47,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (39 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 80 remaining) [2024-11-12 16:00:47,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 80 remaining) [2024-11-12 16:00:47,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 80 remaining) [2024-11-12 16:00:47,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 80 remaining) [2024-11-12 16:00:47,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 80 remaining) [2024-11-12 16:00:47,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 80 remaining) [2024-11-12 16:00:47,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 80 remaining) [2024-11-12 16:00:47,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 80 remaining) [2024-11-12 16:00:47,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 80 remaining) [2024-11-12 16:00:47,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 80 remaining) [2024-11-12 16:00:47,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 80 remaining) [2024-11-12 16:00:47,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 80 remaining) [2024-11-12 16:00:47,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 80 remaining) [2024-11-12 16:00:47,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 80 remaining) [2024-11-12 16:00:47,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 80 remaining) [2024-11-12 16:00:47,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 80 remaining) [2024-11-12 16:00:47,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (16 of 80 remaining) [2024-11-12 16:00:47,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 80 remaining) [2024-11-12 16:00:47,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 80 remaining) [2024-11-12 16:00:47,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (13 of 80 remaining) [2024-11-12 16:00:47,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 80 remaining) [2024-11-12 16:00:47,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 80 remaining) [2024-11-12 16:00:47,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (10 of 80 remaining) [2024-11-12 16:00:47,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 80 remaining) [2024-11-12 16:00:47,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 80 remaining) [2024-11-12 16:00:47,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 80 remaining) [2024-11-12 16:00:47,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 80 remaining) [2024-11-12 16:00:47,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 80 remaining) [2024-11-12 16:00:47,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 80 remaining) [2024-11-12 16:00:47,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 80 remaining) [2024-11-12 16:00:47,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 80 remaining) [2024-11-12 16:00:47,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 80 remaining) [2024-11-12 16:00:47,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 80 remaining) [2024-11-12 16:00:47,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:00:47,067 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-12 16:00:47,069 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 16:00:47,071 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 16:00:47,173 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:00:47,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 157 transitions, 324 flow [2024-11-12 16:00:47,197 INFO L124 PetriNetUnfolderBase]: 16/166 cut-off events. [2024-11-12 16:00:47,197 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 16:00:47,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 166 events. 16/166 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 623 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 153. Up to 3 conditions per place. [2024-11-12 16:00:47,199 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 157 transitions, 324 flow [2024-11-12 16:00:47,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 157 transitions, 324 flow [2024-11-12 16:00:47,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:00:47,206 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;@3d312ec8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:00:47,206 INFO L334 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2024-11-12 16:00:47,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:00:47,208 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-12 16:00:47,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:00:47,209 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:47,209 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-12 16:00:47,209 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-12 16:00:47,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:47,210 INFO L85 PathProgramCache]: Analyzing trace with hash 974939, now seen corresponding path program 1 times [2024-11-12 16:00:47,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:47,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503483912] [2024-11-12 16:00:47,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:47,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:00:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:00:47,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:00:47,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503483912] [2024-11-12 16:00:47,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503483912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:00:47,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:00:47,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:00:47,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389486013] [2024-11-12 16:00:47,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:00:47,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 16:00:47,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:00:47,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 16:00:47,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 16:00:47,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 157 [2024-11-12 16:00:47,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 157 transitions, 324 flow. Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2024-11-12 16:00:47,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:00:47,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 157 [2024-11-12 16:00:47,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:00:49,373 INFO L124 PetriNetUnfolderBase]: 9422/15582 cut-off events. [2024-11-12 16:00:49,374 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2024-11-12 16:00:49,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29706 conditions, 15582 events. 9422/15582 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 113795 event pairs, 7467 based on Foata normal form. 237/9293 useless extension candidates. Maximal degree in co-relation 22485. Up to 14002 conditions per place. [2024-11-12 16:00:49,594 INFO L140 encePairwiseOnDemand]: 128/157 looper letters, 89 selfloop transitions, 0 changer transitions 0/126 dead transitions. [2024-11-12 16:00:49,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 126 transitions, 440 flow [2024-11-12 16:00:49,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 16:00:49,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 16:00:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 194 transitions. [2024-11-12 16:00:49,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6178343949044586 [2024-11-12 16:00:49,596 INFO L175 Difference]: Start difference. First operand has 146 places, 157 transitions, 324 flow. Second operand 2 states and 194 transitions. [2024-11-12 16:00:49,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 126 transitions, 440 flow [2024-11-12 16:00:49,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 126 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 16:00:49,603 INFO L231 Difference]: Finished difference. Result has 120 places, 126 transitions, 262 flow [2024-11-12 16:00:49,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=120, PETRI_TRANSITIONS=126} [2024-11-12 16:00:49,605 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -26 predicate places. [2024-11-12 16:00:49,605 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 126 transitions, 262 flow [2024-11-12 16:00:49,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2024-11-12 16:00:49,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:49,606 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 16:00:49,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:00:49,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-12 16:00:49,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:49,607 INFO L85 PathProgramCache]: Analyzing trace with hash 937141987, now seen corresponding path program 1 times [2024-11-12 16:00:49,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:49,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301009528] [2024-11-12 16:00:49,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:00:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:00:49,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:00:49,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301009528] [2024-11-12 16:00:49,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301009528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:00:49,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:00:49,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:00:49,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727195293] [2024-11-12 16:00:49,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:00:49,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:00:49,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:00:49,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:00:49,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:00:49,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 157 [2024-11-12 16:00:49,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 126 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-11-12 16:00:49,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:00:49,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 157 [2024-11-12 16:00:49,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:00:52,401 INFO L124 PetriNetUnfolderBase]: 15329/25137 cut-off events. [2024-11-12 16:00:52,402 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2024-11-12 16:00:52,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47976 conditions, 25137 events. 15329/25137 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 192448 event pairs, 5415 based on Foata normal form. 0/15121 useless extension candidates. Maximal degree in co-relation 47971. Up to 13522 conditions per place. [2024-11-12 16:00:52,561 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 157 selfloop transitions, 5 changer transitions 0/199 dead transitions. [2024-11-12 16:00:52,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 199 transitions, 737 flow [2024-11-12 16:00:52,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:00:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:00:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2024-11-12 16:00:52,565 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5944798301486199 [2024-11-12 16:00:52,566 INFO L175 Difference]: Start difference. First operand has 120 places, 126 transitions, 262 flow. Second operand 3 states and 280 transitions. [2024-11-12 16:00:52,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 199 transitions, 737 flow [2024-11-12 16:00:52,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 199 transitions, 737 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 16:00:52,572 INFO L231 Difference]: Finished difference. Result has 123 places, 130 transitions, 301 flow [2024-11-12 16:00:52,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=123, PETRI_TRANSITIONS=130} [2024-11-12 16:00:52,574 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -23 predicate places. [2024-11-12 16:00:52,575 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 130 transitions, 301 flow [2024-11-12 16:00:52,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-11-12 16:00:52,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:52,575 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 16:00:52,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:00:52,576 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-12 16:00:52,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:52,576 INFO L85 PathProgramCache]: Analyzing trace with hash 937141988, now seen corresponding path program 1 times [2024-11-12 16:00:52,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:52,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622045185] [2024-11-12 16:00:52,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:52,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:00:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:00:53,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:00:53,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622045185] [2024-11-12 16:00:53,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622045185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:00:53,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:00:53,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:00:53,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778118377] [2024-11-12 16:00:53,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:00:53,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:00:53,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:00:53,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:00:53,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:00:53,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 157 [2024-11-12 16:00:53,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 130 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-11-12 16:00:53,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:00:53,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 157 [2024-11-12 16:00:53,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:00:55,535 INFO L124 PetriNetUnfolderBase]: 13548/22515 cut-off events. [2024-11-12 16:00:55,535 INFO L125 PetriNetUnfolderBase]: For 1317/1317 co-relation queries the response was YES. [2024-11-12 16:00:55,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44655 conditions, 22515 events. 13548/22515 cut-off events. For 1317/1317 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 171815 event pairs, 10880 based on Foata normal form. 0/14851 useless extension candidates. Maximal degree in co-relation 44648. Up to 20228 conditions per place. [2024-11-12 16:00:55,650 INFO L140 encePairwiseOnDemand]: 152/157 looper letters, 88 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2024-11-12 16:00:55,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 126 transitions, 471 flow [2024-11-12 16:00:55,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:00:55,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:00:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2024-11-12 16:00:55,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4309978768577495 [2024-11-12 16:00:55,652 INFO L175 Difference]: Start difference. First operand has 123 places, 130 transitions, 301 flow. Second operand 3 states and 203 transitions. [2024-11-12 16:00:55,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 126 transitions, 471 flow [2024-11-12 16:00:55,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 126 transitions, 466 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:00:55,657 INFO L231 Difference]: Finished difference. Result has 120 places, 126 transitions, 290 flow [2024-11-12 16:00:55,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=120, PETRI_TRANSITIONS=126} [2024-11-12 16:00:55,659 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -26 predicate places. [2024-11-12 16:00:55,659 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 126 transitions, 290 flow [2024-11-12 16:00:55,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-11-12 16:00:55,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:55,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:00:55,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:00:55,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-12 16:00:55,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:55,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1110702355, now seen corresponding path program 1 times [2024-11-12 16:00:55,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:55,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629766873] [2024-11-12 16:00:55,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:55,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:00:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:00:55,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:00:55,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629766873] [2024-11-12 16:00:55,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629766873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:00:55,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:00:55,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:00:55,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327103566] [2024-11-12 16:00:55,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:00:55,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:00:55,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:00:55,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:00:55,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:00:55,970 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 157 [2024-11-12 16:00:55,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 126 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2024-11-12 16:00:55,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:00:55,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 157 [2024-11-12 16:00:55,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:00:58,885 INFO L124 PetriNetUnfolderBase]: 13286/21869 cut-off events. [2024-11-12 16:00:58,885 INFO L125 PetriNetUnfolderBase]: For 1299/1311 co-relation queries the response was YES. [2024-11-12 16:00:58,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43124 conditions, 21869 events. 13286/21869 cut-off events. For 1299/1311 co-relation queries the response was YES. Maximal size of possible extension queue 856. Compared 163879 event pairs, 4633 based on Foata normal form. 12/14685 useless extension candidates. Maximal degree in co-relation 43117. Up to 12796 conditions per place. [2024-11-12 16:00:58,982 INFO L140 encePairwiseOnDemand]: 146/157 looper letters, 147 selfloop transitions, 5 changer transitions 0/187 dead transitions. [2024-11-12 16:00:58,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 187 transitions, 721 flow [2024-11-12 16:00:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:00:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:00:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2024-11-12 16:00:58,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.564755838641189 [2024-11-12 16:00:58,984 INFO L175 Difference]: Start difference. First operand has 120 places, 126 transitions, 290 flow. Second operand 3 states and 266 transitions. [2024-11-12 16:00:58,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 187 transitions, 721 flow [2024-11-12 16:00:58,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 187 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:00:58,993 INFO L231 Difference]: Finished difference. Result has 122 places, 126 transitions, 316 flow [2024-11-12 16:00:58,993 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=122, PETRI_TRANSITIONS=126} [2024-11-12 16:00:58,994 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -24 predicate places. [2024-11-12 16:00:58,994 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 126 transitions, 316 flow [2024-11-12 16:00:58,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2024-11-12 16:00:58,994 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:00:58,995 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:00:58,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 16:00:58,995 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-12 16:00:58,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:00:58,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1110702356, now seen corresponding path program 1 times [2024-11-12 16:00:58,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:00:58,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922725004] [2024-11-12 16:00:58,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:00:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:00:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:00:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:00:59,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:00:59,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922725004] [2024-11-12 16:00:59,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922725004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:00:59,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:00:59,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:00:59,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811946758] [2024-11-12 16:00:59,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:00:59,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:00:59,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:00:59,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:00:59,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:00:59,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 157 [2024-11-12 16:00:59,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 126 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2024-11-12 16:00:59,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:00:59,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 157 [2024-11-12 16:00:59,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:01:01,043 INFO L124 PetriNetUnfolderBase]: 11123/18617 cut-off events. [2024-11-12 16:01:01,044 INFO L125 PetriNetUnfolderBase]: For 1929/1929 co-relation queries the response was YES. [2024-11-12 16:01:01,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37561 conditions, 18617 events. 11123/18617 cut-off events. For 1929/1929 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 138945 event pairs, 8719 based on Foata normal form. 0/13371 useless extension candidates. Maximal degree in co-relation 37553. Up to 16474 conditions per place. [2024-11-12 16:01:01,112 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 82 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2024-11-12 16:01:01,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 118 transitions, 466 flow [2024-11-12 16:01:01,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:01:01,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:01:01,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 195 transitions. [2024-11-12 16:01:01,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4140127388535032 [2024-11-12 16:01:01,114 INFO L175 Difference]: Start difference. First operand has 122 places, 126 transitions, 316 flow. Second operand 3 states and 195 transitions. [2024-11-12 16:01:01,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 118 transitions, 466 flow [2024-11-12 16:01:01,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 118 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:01:01,118 INFO L231 Difference]: Finished difference. Result has 114 places, 118 transitions, 292 flow [2024-11-12 16:01:01,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=114, PETRI_TRANSITIONS=118} [2024-11-12 16:01:01,118 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -32 predicate places. [2024-11-12 16:01:01,119 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 118 transitions, 292 flow [2024-11-12 16:01:01,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2024-11-12 16:01:01,119 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:01:01,119 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-12 16:01:01,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 16:01:01,119 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-12 16:01:01,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:01:01,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1469128320, now seen corresponding path program 1 times [2024-11-12 16:01:01,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:01:01,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24091419] [2024-11-12 16:01:01,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:01:01,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:01:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:01:01,352 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 16:01:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:01:01,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 16:01:01,376 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 16:01:01,376 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (118 of 119 remaining) [2024-11-12 16:01:01,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 119 remaining) [2024-11-12 16:01:01,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (110 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (107 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 119 remaining) [2024-11-12 16:01:01,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (104 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (95 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 119 remaining) [2024-11-12 16:01:01,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (92 of 119 remaining) [2024-11-12 16:01:01,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 119 remaining) [2024-11-12 16:01:01,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (90 of 119 remaining) [2024-11-12 16:01:01,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (89 of 119 remaining) [2024-11-12 16:01:01,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 119 remaining) [2024-11-12 16:01:01,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 119 remaining) [2024-11-12 16:01:01,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 119 remaining) [2024-11-12 16:01:01,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 119 remaining) [2024-11-12 16:01:01,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 119 remaining) [2024-11-12 16:01:01,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 119 remaining) [2024-11-12 16:01:01,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 119 remaining) [2024-11-12 16:01:01,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 119 remaining) [2024-11-12 16:01:01,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 119 remaining) [2024-11-12 16:01:01,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 119 remaining) [2024-11-12 16:01:01,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (78 of 119 remaining) [2024-11-12 16:01:01,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 119 remaining) [2024-11-12 16:01:01,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 119 remaining) [2024-11-12 16:01:01,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 119 remaining) [2024-11-12 16:01:01,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 119 remaining) [2024-11-12 16:01:01,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 119 remaining) [2024-11-12 16:01:01,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 119 remaining) [2024-11-12 16:01:01,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 119 remaining) [2024-11-12 16:01:01,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 119 remaining) [2024-11-12 16:01:01,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 119 remaining) [2024-11-12 16:01:01,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 119 remaining) [2024-11-12 16:01:01,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 119 remaining) [2024-11-12 16:01:01,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 119 remaining) [2024-11-12 16:01:01,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 119 remaining) [2024-11-12 16:01:01,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 119 remaining) [2024-11-12 16:01:01,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 119 remaining) [2024-11-12 16:01:01,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 119 remaining) [2024-11-12 16:01:01,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 119 remaining) [2024-11-12 16:01:01,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 119 remaining) [2024-11-12 16:01:01,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 119 remaining) [2024-11-12 16:01:01,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 119 remaining) [2024-11-12 16:01:01,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 119 remaining) [2024-11-12 16:01:01,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 119 remaining) [2024-11-12 16:01:01,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (55 of 119 remaining) [2024-11-12 16:01:01,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 119 remaining) [2024-11-12 16:01:01,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 119 remaining) [2024-11-12 16:01:01,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (52 of 119 remaining) [2024-11-12 16:01:01,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 119 remaining) [2024-11-12 16:01:01,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 119 remaining) [2024-11-12 16:01:01,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (49 of 119 remaining) [2024-11-12 16:01:01,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 119 remaining) [2024-11-12 16:01:01,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 119 remaining) [2024-11-12 16:01:01,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 119 remaining) [2024-11-12 16:01:01,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 119 remaining) [2024-11-12 16:01:01,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 119 remaining) [2024-11-12 16:01:01,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 119 remaining) [2024-11-12 16:01:01,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 119 remaining) [2024-11-12 16:01:01,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 119 remaining) [2024-11-12 16:01:01,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 119 remaining) [2024-11-12 16:01:01,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 119 remaining) [2024-11-12 16:01:01,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 119 remaining) [2024-11-12 16:01:01,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 119 remaining) [2024-11-12 16:01:01,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 119 remaining) [2024-11-12 16:01:01,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 119 remaining) [2024-11-12 16:01:01,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 119 remaining) [2024-11-12 16:01:01,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 119 remaining) [2024-11-12 16:01:01,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 119 remaining) [2024-11-12 16:01:01,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 119 remaining) [2024-11-12 16:01:01,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 119 remaining) [2024-11-12 16:01:01,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 119 remaining) [2024-11-12 16:01:01,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 119 remaining) [2024-11-12 16:01:01,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 119 remaining) [2024-11-12 16:01:01,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 119 remaining) [2024-11-12 16:01:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 119 remaining) [2024-11-12 16:01:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 119 remaining) [2024-11-12 16:01:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 119 remaining) [2024-11-12 16:01:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 119 remaining) [2024-11-12 16:01:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 119 remaining) [2024-11-12 16:01:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 119 remaining) [2024-11-12 16:01:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 119 remaining) [2024-11-12 16:01:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONARRAY_INDEX (16 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONMEMORY_LEAK (13 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONARRAY_INDEX (10 of 119 remaining) [2024-11-12 16:01:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 119 remaining) [2024-11-12 16:01:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 119 remaining) [2024-11-12 16:01:01,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 16:01:01,394 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-12 16:01:01,394 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 16:01:01,394 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 16:01:01,498 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:01:01,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 232 transitions, 482 flow [2024-11-12 16:01:01,538 INFO L124 PetriNetUnfolderBase]: 24/246 cut-off events. [2024-11-12 16:01:01,538 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-12 16:01:01,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 246 events. 24/246 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1119 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 227. Up to 4 conditions per place. [2024-11-12 16:01:01,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 232 transitions, 482 flow [2024-11-12 16:01:01,548 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 232 transitions, 482 flow [2024-11-12 16:01:01,551 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:01:01,551 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;@3d312ec8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:01:01,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 158 error locations. [2024-11-12 16:01:01,553 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:01:01,553 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-12 16:01:01,554 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:01:01,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:01:01,554 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-12 16:01:01,554 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 155 more)] === [2024-11-12 16:01:01,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:01:01,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1205315, now seen corresponding path program 1 times [2024-11-12 16:01:01,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:01:01,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936971676] [2024-11-12 16:01:01,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:01:01,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:01:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:01:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:01:01,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:01:01,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936971676] [2024-11-12 16:01:01,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936971676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:01:01,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:01:01,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:01:01,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101683238] [2024-11-12 16:01:01,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:01:01,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 16:01:01,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:01:01,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 16:01:01,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 16:01:01,964 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 232 [2024-11-12 16:01:01,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 232 transitions, 482 flow. Second operand has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2024-11-12 16:01:01,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:01:01,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 232 [2024-11-12 16:01:01,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand