./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 023d838f 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-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:48:28,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:48:28,681 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:48:28,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:48:28,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:48:28,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:48:28,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:48:28,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:48:28,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:48:28,726 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:48:28,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:48:28,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:48:28,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:48:28,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:48:28,729 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:48:28,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:48:28,730 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:48:28,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:48:28,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:48:28,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:48:28,750 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:48:28,750 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:48:28,750 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:48:28,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:48:28,750 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:48:28,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:48:28,751 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:48:28,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:48:28,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:48:28,751 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:48:28,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:48:28,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:48:28,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:48:28,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:48:28,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:48:28,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:48:28,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:48:28,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:48:28,755 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:48:28,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:48:28,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:48:28,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:48:28,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 [2024-11-10 17:48:29,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:48:29,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:48:29,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:48:29,025 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:48:29,025 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:48:29,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-10 17:48:30,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:48:30,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:48:30,668 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-10 17:48:30,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85e76410/bc65bd146d7b41a6891837a8df8d3f2e/FLAG691b5b630 [2024-11-10 17:48:30,694 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85e76410/bc65bd146d7b41a6891837a8df8d3f2e [2024-11-10 17:48:30,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:48:30,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:48:30,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:48:30,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:48:30,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:48:30,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:48:30" (1/1) ... [2024-11-10 17:48:30,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1e61f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:30, skipping insertion in model container [2024-11-10 17:48:30,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:48:30" (1/1) ... [2024-11-10 17:48:30,774 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:48:31,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:48:31,167 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:48:31,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:48:31,265 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:48:31,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31 WrapperNode [2024-11-10 17:48:31,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:48:31,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:48:31,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:48:31,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:48:31,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,329 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 253 [2024-11-10 17:48:31,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:48:31,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:48:31,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:48:31,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:48:31,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,367 INFO L175 MemorySlicer]: Split 24 memory accesses to 4 slices as follows [2, 12, 6, 4]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 2, 1, 1]. The 9 writes are split as follows [0, 5, 2, 2]. [2024-11-10 17:48:31,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,377 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:48:31,385 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:48:31,385 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:48:31,385 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:48:31,386 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (1/1) ... [2024-11-10 17:48:31,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:48:31,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:48:31,424 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) [2024-11-10 17:48:31,426 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 [2024-11-10 17:48:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 17:48:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 17:48:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 17:48:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 17:48:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-10 17:48:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-10 17:48:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 17:48:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 17:48:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 17:48:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 17:48:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 17:48:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:48:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 17:48:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 17:48:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:48:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 17:48:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 17:48:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 17:48:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 17:48:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:48:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:48:31,478 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 17:48:31,647 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:48:31,649 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:48:32,078 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 17:48:32,079 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:48:32,742 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:48:32,743 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 17:48:32,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:48:32 BoogieIcfgContainer [2024-11-10 17:48:32,744 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:48:32,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:48:32,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:48:32,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:48:32,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:48:30" (1/3) ... [2024-11-10 17:48:32,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f316c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:48:32, skipping insertion in model container [2024-11-10 17:48:32,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:48:31" (2/3) ... [2024-11-10 17:48:32,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f316c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:48:32, skipping insertion in model container [2024-11-10 17:48:32,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:48:32" (3/3) ... [2024-11-10 17:48:32,754 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas.i [2024-11-10 17:48:32,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:48:32,773 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2024-11-10 17:48:32,773 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 17:48:32,878 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:48:32,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 91 transitions, 186 flow [2024-11-10 17:48:32,964 INFO L124 PetriNetUnfolderBase]: 12/98 cut-off events. [2024-11-10 17:48:32,966 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:48:32,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 98 events. 12/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 209 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 88. Up to 4 conditions per place. [2024-11-10 17:48:32,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 91 transitions, 186 flow [2024-11-10 17:48:32,975 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 91 transitions, 186 flow [2024-11-10 17:48:32,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:48:32,996 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;@35d4e597, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:48:32,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-11-10 17:48:33,001 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:48:33,002 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-10 17:48:33,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:48:33,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:33,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 17:48:33,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-10 17:48:33,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:33,010 INFO L85 PathProgramCache]: Analyzing trace with hash 23910263, now seen corresponding path program 1 times [2024-11-10 17:48:33,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:33,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419187904] [2024-11-10 17:48:33,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:33,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:33,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:33,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:33,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419187904] [2024-11-10 17:48:33,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419187904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:33,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:33,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:48:33,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950220327] [2024-11-10 17:48:33,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:33,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 17:48:33,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:33,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 17:48:33,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 17:48:33,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 91 [2024-11-10 17:48:33,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 91 transitions, 186 flow. Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2024-11-10 17:48:33,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:33,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 91 [2024-11-10 17:48:33,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:48:34,175 INFO L124 PetriNetUnfolderBase]: 99/279 cut-off events. [2024-11-10 17:48:34,175 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:48:34,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 279 events. 99/279 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1123 event pairs, 75 based on Foata normal form. 49/238 useless extension candidates. Maximal degree in co-relation 478. Up to 215 conditions per place. [2024-11-10 17:48:34,182 INFO L140 encePairwiseOnDemand]: 73/91 looper letters, 46 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2024-11-10 17:48:34,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 232 flow [2024-11-10 17:48:34,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 17:48:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 17:48:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2024-11-10 17:48:34,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6263736263736264 [2024-11-10 17:48:34,195 INFO L175 Difference]: Start difference. First operand has 83 places, 91 transitions, 186 flow. Second operand 2 states and 114 transitions. [2024-11-10 17:48:34,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 232 flow [2024-11-10 17:48:34,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 68 transitions, 232 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 17:48:34,200 INFO L231 Difference]: Finished difference. Result has 66 places, 68 transitions, 140 flow [2024-11-10 17:48:34,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=140, PETRI_PLACES=66, PETRI_TRANSITIONS=68} [2024-11-10 17:48:34,205 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, -17 predicate places. [2024-11-10 17:48:34,205 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 68 transitions, 140 flow [2024-11-10 17:48:34,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2024-11-10 17:48:34,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:34,206 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 17:48:34,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:48:34,206 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-10 17:48:34,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:34,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1502051568, now seen corresponding path program 1 times [2024-11-10 17:48:34,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750362929] [2024-11-10 17:48:34,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:34,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:34,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:34,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750362929] [2024-11-10 17:48:34,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750362929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:34,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:34,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:48:34,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453654515] [2024-11-10 17:48:34,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:34,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:48:34,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:34,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:48:34,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:48:34,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 91 [2024-11-10 17:48:34,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 68 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-11-10 17:48:34,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:34,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 91 [2024-11-10 17:48:34,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:48:34,954 INFO L124 PetriNetUnfolderBase]: 155/430 cut-off events. [2024-11-10 17:48:34,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:48:34,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 430 events. 155/430 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1892 event pairs, 61 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 768. Up to 171 conditions per place. [2024-11-10 17:48:34,960 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 71 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-10 17:48:34,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 96 transitions, 344 flow [2024-11-10 17:48:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:48:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:48:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-10 17:48:34,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5531135531135531 [2024-11-10 17:48:34,967 INFO L175 Difference]: Start difference. First operand has 66 places, 68 transitions, 140 flow. Second operand 3 states and 151 transitions. [2024-11-10 17:48:34,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 96 transitions, 344 flow [2024-11-10 17:48:34,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 96 transitions, 344 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 17:48:34,971 INFO L231 Difference]: Finished difference. Result has 67 places, 68 transitions, 153 flow [2024-11-10 17:48:34,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=67, PETRI_TRANSITIONS=68} [2024-11-10 17:48:34,972 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, -16 predicate places. [2024-11-10 17:48:34,972 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 153 flow [2024-11-10 17:48:34,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-11-10 17:48:34,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:34,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 17:48:34,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:48:34,973 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-10 17:48:34,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:34,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1502051569, now seen corresponding path program 1 times [2024-11-10 17:48:34,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:34,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278240695] [2024-11-10 17:48:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:34,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:35,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:35,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:35,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278240695] [2024-11-10 17:48:35,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278240695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:35,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:35,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:48:35,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062664037] [2024-11-10 17:48:35,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:35,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:48:35,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:35,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:48:35,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:48:35,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 91 [2024-11-10 17:48:35,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-11-10 17:48:35,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:35,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 91 [2024-11-10 17:48:35,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:48:35,518 INFO L124 PetriNetUnfolderBase]: 149/414 cut-off events. [2024-11-10 17:48:35,519 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 17:48:35,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 414 events. 149/414 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1802 event pairs, 117 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 759. Up to 324 conditions per place. [2024-11-10 17:48:35,524 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 43 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-11-10 17:48:35,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 66 transitions, 237 flow [2024-11-10 17:48:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:48:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:48:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-10 17:48:35,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4358974358974359 [2024-11-10 17:48:35,528 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 153 flow. Second operand 3 states and 119 transitions. [2024-11-10 17:48:35,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 66 transitions, 237 flow [2024-11-10 17:48:35,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:48:35,530 INFO L231 Difference]: Finished difference. Result has 66 places, 66 transitions, 148 flow [2024-11-10 17:48:35,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=66, PETRI_TRANSITIONS=66} [2024-11-10 17:48:35,531 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, -17 predicate places. [2024-11-10 17:48:35,531 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 66 transitions, 148 flow [2024-11-10 17:48:35,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-11-10 17:48:35,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:35,532 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 17:48:35,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:48:35,532 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-10 17:48:35,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:35,533 INFO L85 PathProgramCache]: Analyzing trace with hash 359880185, now seen corresponding path program 1 times [2024-11-10 17:48:35,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:35,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285437362] [2024-11-10 17:48:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:35,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 17:48:35,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 17:48:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 17:48:35,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 17:48:35,890 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 17:48:35,891 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (79 of 80 remaining) [2024-11-10 17:48:35,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 80 remaining) [2024-11-10 17:48:35,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 80 remaining) [2024-11-10 17:48:35,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 80 remaining) [2024-11-10 17:48:35,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 80 remaining) [2024-11-10 17:48:35,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 80 remaining) [2024-11-10 17:48:35,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 80 remaining) [2024-11-10 17:48:35,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 80 remaining) [2024-11-10 17:48:35,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 80 remaining) [2024-11-10 17:48:35,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 80 remaining) [2024-11-10 17:48:35,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 80 remaining) [2024-11-10 17:48:35,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 80 remaining) [2024-11-10 17:48:35,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 80 remaining) [2024-11-10 17:48:35,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 80 remaining) [2024-11-10 17:48:35,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 80 remaining) [2024-11-10 17:48:35,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 80 remaining) [2024-11-10 17:48:35,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 80 remaining) [2024-11-10 17:48:35,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 80 remaining) [2024-11-10 17:48:35,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 80 remaining) [2024-11-10 17:48:35,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 80 remaining) [2024-11-10 17:48:35,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 80 remaining) [2024-11-10 17:48:35,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 80 remaining) [2024-11-10 17:48:35,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 80 remaining) [2024-11-10 17:48:35,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (56 of 80 remaining) [2024-11-10 17:48:35,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 80 remaining) [2024-11-10 17:48:35,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 80 remaining) [2024-11-10 17:48:35,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (53 of 80 remaining) [2024-11-10 17:48:35,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 80 remaining) [2024-11-10 17:48:35,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 80 remaining) [2024-11-10 17:48:35,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (50 of 80 remaining) [2024-11-10 17:48:35,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 80 remaining) [2024-11-10 17:48:35,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 80 remaining) [2024-11-10 17:48:35,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 80 remaining) [2024-11-10 17:48:35,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 80 remaining) [2024-11-10 17:48:35,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 80 remaining) [2024-11-10 17:48:35,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 80 remaining) [2024-11-10 17:48:35,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 80 remaining) [2024-11-10 17:48:35,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 80 remaining) [2024-11-10 17:48:35,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 80 remaining) [2024-11-10 17:48:35,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 80 remaining) [2024-11-10 17:48:35,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (39 of 80 remaining) [2024-11-10 17:48:35,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 80 remaining) [2024-11-10 17:48:35,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 80 remaining) [2024-11-10 17:48:35,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 80 remaining) [2024-11-10 17:48:35,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 80 remaining) [2024-11-10 17:48:35,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 80 remaining) [2024-11-10 17:48:35,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 80 remaining) [2024-11-10 17:48:35,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 80 remaining) [2024-11-10 17:48:35,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 80 remaining) [2024-11-10 17:48:35,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 80 remaining) [2024-11-10 17:48:35,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 80 remaining) [2024-11-10 17:48:35,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 80 remaining) [2024-11-10 17:48:35,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 80 remaining) [2024-11-10 17:48:35,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 80 remaining) [2024-11-10 17:48:35,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 80 remaining) [2024-11-10 17:48:35,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 80 remaining) [2024-11-10 17:48:35,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 80 remaining) [2024-11-10 17:48:35,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 80 remaining) [2024-11-10 17:48:35,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 80 remaining) [2024-11-10 17:48:35,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 80 remaining) [2024-11-10 17:48:35,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 80 remaining) [2024-11-10 17:48:35,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 80 remaining) [2024-11-10 17:48:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 80 remaining) [2024-11-10 17:48:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (16 of 80 remaining) [2024-11-10 17:48:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 80 remaining) [2024-11-10 17:48:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 80 remaining) [2024-11-10 17:48:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (13 of 80 remaining) [2024-11-10 17:48:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 80 remaining) [2024-11-10 17:48:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 80 remaining) [2024-11-10 17:48:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (10 of 80 remaining) [2024-11-10 17:48:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 80 remaining) [2024-11-10 17:48:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 80 remaining) [2024-11-10 17:48:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 80 remaining) [2024-11-10 17:48:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 80 remaining) [2024-11-10 17:48:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 80 remaining) [2024-11-10 17:48:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 80 remaining) [2024-11-10 17:48:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 80 remaining) [2024-11-10 17:48:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 80 remaining) [2024-11-10 17:48:35,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 80 remaining) [2024-11-10 17:48:35,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 80 remaining) [2024-11-10 17:48:35,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:48:35,915 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-10 17:48:35,918 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 17:48:35,921 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 17:48:36,009 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:48:36,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 172 transitions, 354 flow [2024-11-10 17:48:36,036 INFO L124 PetriNetUnfolderBase]: 23/187 cut-off events. [2024-11-10 17:48:36,036 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 17:48:36,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 187 events. 23/187 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 672 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2024-11-10 17:48:36,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 172 transitions, 354 flow [2024-11-10 17:48:36,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 172 transitions, 354 flow [2024-11-10 17:48:36,043 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:48:36,044 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;@35d4e597, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:48:36,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2024-11-10 17:48:36,046 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:48:36,046 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-10 17:48:36,047 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:48:36,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:36,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 17:48:36,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-10 17:48:36,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:36,048 INFO L85 PathProgramCache]: Analyzing trace with hash 29205111, now seen corresponding path program 1 times [2024-11-10 17:48:36,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:36,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062773748] [2024-11-10 17:48:36,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:36,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:36,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:36,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062773748] [2024-11-10 17:48:36,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062773748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:36,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:36,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:48:36,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795893390] [2024-11-10 17:48:36,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:36,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 17:48:36,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:36,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 17:48:36,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 17:48:36,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 172 [2024-11-10 17:48:36,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 172 transitions, 354 flow. Second operand has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 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) [2024-11-10 17:48:36,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:36,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 172 [2024-11-10 17:48:36,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:48:38,593 INFO L124 PetriNetUnfolderBase]: 9445/15951 cut-off events. [2024-11-10 17:48:38,594 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-10 17:48:38,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30084 conditions, 15951 events. 9445/15951 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 122337 event pairs, 7468 based on Foata normal form. 2260/11667 useless extension candidates. Maximal degree in co-relation 22650. Up to 14011 conditions per place. [2024-11-10 17:48:38,726 INFO L140 encePairwiseOnDemand]: 138/172 looper letters, 89 selfloop transitions, 0 changer transitions 0/131 dead transitions. [2024-11-10 17:48:38,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 450 flow [2024-11-10 17:48:38,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 17:48:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 17:48:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 215 transitions. [2024-11-10 17:48:38,731 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-10 17:48:38,731 INFO L175 Difference]: Start difference. First operand has 156 places, 172 transitions, 354 flow. Second operand 2 states and 215 transitions. [2024-11-10 17:48:38,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 450 flow [2024-11-10 17:48:38,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 131 transitions, 450 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 17:48:38,737 INFO L231 Difference]: Finished difference. Result has 125 places, 131 transitions, 272 flow [2024-11-10 17:48:38,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=272, PETRI_PLACES=125, PETRI_TRANSITIONS=131} [2024-11-10 17:48:38,739 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -31 predicate places. [2024-11-10 17:48:38,740 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 131 transitions, 272 flow [2024-11-10 17:48:38,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 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) [2024-11-10 17:48:38,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:38,740 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 17:48:38,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 17:48:38,741 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-10 17:48:38,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:38,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1999449152, now seen corresponding path program 1 times [2024-11-10 17:48:38,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:38,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475297085] [2024-11-10 17:48:38,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:38,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:39,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:39,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475297085] [2024-11-10 17:48:39,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475297085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:39,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:39,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:48:39,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450391722] [2024-11-10 17:48:39,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:39,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:48:39,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:39,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:48:39,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:48:39,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 172 [2024-11-10 17:48:39,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 131 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-11-10 17:48:39,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:39,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 172 [2024-11-10 17:48:39,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:48:41,761 INFO L124 PetriNetUnfolderBase]: 15305/25628 cut-off events. [2024-11-10 17:48:41,762 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-10 17:48:41,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48474 conditions, 25628 events. 15305/25628 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 937. Compared 206439 event pairs, 5416 based on Foata normal form. 0/15556 useless extension candidates. Maximal degree in co-relation 48469. Up to 13522 conditions per place. [2024-11-10 17:48:41,927 INFO L140 encePairwiseOnDemand]: 163/172 looper letters, 157 selfloop transitions, 5 changer transitions 0/204 dead transitions. [2024-11-10 17:48:41,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 204 transitions, 747 flow [2024-11-10 17:48:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:48:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:48:41,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2024-11-10 17:48:41,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5891472868217055 [2024-11-10 17:48:41,932 INFO L175 Difference]: Start difference. First operand has 125 places, 131 transitions, 272 flow. Second operand 3 states and 304 transitions. [2024-11-10 17:48:41,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 204 transitions, 747 flow [2024-11-10 17:48:41,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 204 transitions, 747 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 17:48:41,939 INFO L231 Difference]: Finished difference. Result has 128 places, 135 transitions, 311 flow [2024-11-10 17:48:41,939 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=128, PETRI_TRANSITIONS=135} [2024-11-10 17:48:41,942 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -28 predicate places. [2024-11-10 17:48:41,943 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 135 transitions, 311 flow [2024-11-10 17:48:41,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-11-10 17:48:41,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:41,943 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 17:48:41,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 17:48:41,943 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-10 17:48:41,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:41,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1999449151, now seen corresponding path program 1 times [2024-11-10 17:48:41,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:41,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3132944] [2024-11-10 17:48:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:41,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:42,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3132944] [2024-11-10 17:48:42,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3132944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:42,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:42,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:48:42,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705104100] [2024-11-10 17:48:42,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:42,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:48:42,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:48:42,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:48:42,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 172 [2024-11-10 17:48:42,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 135 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-11-10 17:48:42,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:42,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 172 [2024-11-10 17:48:42,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:48:44,762 INFO L124 PetriNetUnfolderBase]: 13552/23049 cut-off events. [2024-11-10 17:48:44,763 INFO L125 PetriNetUnfolderBase]: For 1283/1283 co-relation queries the response was YES. [2024-11-10 17:48:44,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45194 conditions, 23049 events. 13552/23049 cut-off events. For 1283/1283 co-relation queries the response was YES. Maximal size of possible extension queue 842. Compared 185064 event pairs, 10881 based on Foata normal form. 0/15351 useless extension candidates. Maximal degree in co-relation 45187. Up to 20233 conditions per place. [2024-11-10 17:48:44,889 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 88 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-10 17:48:44,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 481 flow [2024-11-10 17:48:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:48:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:48:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2024-11-10 17:48:44,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43992248062015504 [2024-11-10 17:48:44,891 INFO L175 Difference]: Start difference. First operand has 128 places, 135 transitions, 311 flow. Second operand 3 states and 227 transitions. [2024-11-10 17:48:44,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 481 flow [2024-11-10 17:48:44,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 131 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:48:44,896 INFO L231 Difference]: Finished difference. Result has 125 places, 131 transitions, 300 flow [2024-11-10 17:48:44,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=125, PETRI_TRANSITIONS=131} [2024-11-10 17:48:44,897 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -31 predicate places. [2024-11-10 17:48:44,898 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 131 transitions, 300 flow [2024-11-10 17:48:44,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-11-10 17:48:44,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:44,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:48:44,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 17:48:44,899 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-10 17:48:44,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:44,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1312885959, now seen corresponding path program 1 times [2024-11-10 17:48:44,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:44,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068818043] [2024-11-10 17:48:44,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:44,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:45,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:45,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068818043] [2024-11-10 17:48:45,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068818043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:45,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:45,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:48:45,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536011199] [2024-11-10 17:48:45,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:45,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:48:45,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:45,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:48:45,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:48:45,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 172 [2024-11-10 17:48:45,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 131 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-11-10 17:48:45,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:45,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 172 [2024-11-10 17:48:45,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:48:47,151 INFO L124 PetriNetUnfolderBase]: 13266/22320 cut-off events. [2024-11-10 17:48:47,151 INFO L125 PetriNetUnfolderBase]: For 1292/1304 co-relation queries the response was YES. [2024-11-10 17:48:47,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43580 conditions, 22320 events. 13266/22320 cut-off events. For 1292/1304 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 176341 event pairs, 4604 based on Foata normal form. 12/15071 useless extension candidates. Maximal degree in co-relation 43573. Up to 12796 conditions per place. [2024-11-10 17:48:47,243 INFO L140 encePairwiseOnDemand]: 161/172 looper letters, 147 selfloop transitions, 5 changer transitions 0/192 dead transitions. [2024-11-10 17:48:47,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 192 transitions, 731 flow [2024-11-10 17:48:47,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:48:47,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:48:47,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-11-10 17:48:47,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.562015503875969 [2024-11-10 17:48:47,245 INFO L175 Difference]: Start difference. First operand has 125 places, 131 transitions, 300 flow. Second operand 3 states and 290 transitions. [2024-11-10 17:48:47,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 192 transitions, 731 flow [2024-11-10 17:48:47,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 192 transitions, 730 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:48:47,250 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 326 flow [2024-11-10 17:48:47,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=127, PETRI_TRANSITIONS=131} [2024-11-10 17:48:47,251 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -29 predicate places. [2024-11-10 17:48:47,251 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 326 flow [2024-11-10 17:48:47,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-11-10 17:48:47,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:47,252 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:48:47,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 17:48:47,252 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-10 17:48:47,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:47,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1312885960, now seen corresponding path program 1 times [2024-11-10 17:48:47,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:47,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576887882] [2024-11-10 17:48:47,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:47,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:47,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:47,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576887882] [2024-11-10 17:48:47,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576887882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:47,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:47,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:48:47,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212783409] [2024-11-10 17:48:47,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:47,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:48:47,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:48:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:48:47,648 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 172 [2024-11-10 17:48:47,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-11-10 17:48:47,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:47,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 172 [2024-11-10 17:48:47,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:48:49,419 INFO L124 PetriNetUnfolderBase]: 11124/19123 cut-off events. [2024-11-10 17:48:49,419 INFO L125 PetriNetUnfolderBase]: For 1919/1943 co-relation queries the response was YES. [2024-11-10 17:48:49,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38072 conditions, 19123 events. 11124/19123 cut-off events. For 1919/1943 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 150395 event pairs, 8720 based on Foata normal form. 0/13827 useless extension candidates. Maximal degree in co-relation 38064. Up to 16479 conditions per place. [2024-11-10 17:48:49,480 INFO L140 encePairwiseOnDemand]: 163/172 looper letters, 82 selfloop transitions, 1 changer transitions 0/123 dead transitions. [2024-11-10 17:48:49,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 123 transitions, 476 flow [2024-11-10 17:48:49,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:48:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:48:49,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-11-10 17:48:49,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42441860465116277 [2024-11-10 17:48:49,481 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 326 flow. Second operand 3 states and 219 transitions. [2024-11-10 17:48:49,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 123 transitions, 476 flow [2024-11-10 17:48:49,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 123 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 17:48:49,485 INFO L231 Difference]: Finished difference. Result has 119 places, 123 transitions, 302 flow [2024-11-10 17:48:49,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=119, PETRI_TRANSITIONS=123} [2024-11-10 17:48:49,486 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -37 predicate places. [2024-11-10 17:48:49,486 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 123 transitions, 302 flow [2024-11-10 17:48:49,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-11-10 17:48:49,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:49,486 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-10 17:48:49,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 17:48:49,486 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-10 17:48:49,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:49,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1271346155, now seen corresponding path program 1 times [2024-11-10 17:48:49,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:49,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893915826] [2024-11-10 17:48:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:49,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 17:48:49,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 17:48:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 17:48:49,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 17:48:49,725 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 17:48:49,725 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (118 of 119 remaining) [2024-11-10 17:48:49,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 119 remaining) [2024-11-10 17:48:49,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 119 remaining) [2024-11-10 17:48:49,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 119 remaining) [2024-11-10 17:48:49,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 119 remaining) [2024-11-10 17:48:49,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 119 remaining) [2024-11-10 17:48:49,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 119 remaining) [2024-11-10 17:48:49,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 119 remaining) [2024-11-10 17:48:49,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (110 of 119 remaining) [2024-11-10 17:48:49,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 119 remaining) [2024-11-10 17:48:49,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 119 remaining) [2024-11-10 17:48:49,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (107 of 119 remaining) [2024-11-10 17:48:49,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 119 remaining) [2024-11-10 17:48:49,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 119 remaining) [2024-11-10 17:48:49,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (104 of 119 remaining) [2024-11-10 17:48:49,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 119 remaining) [2024-11-10 17:48:49,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (95 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 119 remaining) [2024-11-10 17:48:49,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 119 remaining) [2024-11-10 17:48:49,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (92 of 119 remaining) [2024-11-10 17:48:49,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 119 remaining) [2024-11-10 17:48:49,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (90 of 119 remaining) [2024-11-10 17:48:49,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (89 of 119 remaining) [2024-11-10 17:48:49,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 119 remaining) [2024-11-10 17:48:49,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 119 remaining) [2024-11-10 17:48:49,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 119 remaining) [2024-11-10 17:48:49,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 119 remaining) [2024-11-10 17:48:49,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 119 remaining) [2024-11-10 17:48:49,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (78 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 119 remaining) [2024-11-10 17:48:49,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 119 remaining) [2024-11-10 17:48:49,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (55 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (52 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (49 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 119 remaining) [2024-11-10 17:48:49,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 119 remaining) [2024-11-10 17:48:49,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 119 remaining) [2024-11-10 17:48:49,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 119 remaining) [2024-11-10 17:48:49,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 119 remaining) [2024-11-10 17:48:49,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 119 remaining) [2024-11-10 17:48:49,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 119 remaining) [2024-11-10 17:48:49,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 119 remaining) [2024-11-10 17:48:49,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 119 remaining) [2024-11-10 17:48:49,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 119 remaining) [2024-11-10 17:48:49,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 119 remaining) [2024-11-10 17:48:49,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 119 remaining) [2024-11-10 17:48:49,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 119 remaining) [2024-11-10 17:48:49,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 119 remaining) [2024-11-10 17:48:49,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 119 remaining) [2024-11-10 17:48:49,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 119 remaining) [2024-11-10 17:48:49,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 119 remaining) [2024-11-10 17:48:49,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (16 of 119 remaining) [2024-11-10 17:48:49,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 119 remaining) [2024-11-10 17:48:49,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 119 remaining) [2024-11-10 17:48:49,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (13 of 119 remaining) [2024-11-10 17:48:49,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 119 remaining) [2024-11-10 17:48:49,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 119 remaining) [2024-11-10 17:48:49,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (10 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 119 remaining) [2024-11-10 17:48:49,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 119 remaining) [2024-11-10 17:48:49,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 119 remaining) [2024-11-10 17:48:49,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 17:48:49,741 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-10 17:48:49,742 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 17:48:49,742 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 17:48:49,856 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:48:49,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 253 transitions, 524 flow [2024-11-10 17:48:49,897 INFO L124 PetriNetUnfolderBase]: 34/276 cut-off events. [2024-11-10 17:48:49,897 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 17:48:49,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 276 events. 34/276 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1205 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2024-11-10 17:48:49,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 253 transitions, 524 flow [2024-11-10 17:48:49,908 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 253 transitions, 524 flow [2024-11-10 17:48:49,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:48:49,909 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;@35d4e597, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:48:49,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 158 error locations. [2024-11-10 17:48:49,912 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:48:49,912 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-10 17:48:49,912 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:48:49,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:48:49,912 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 17:48:49,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 155 more)] === [2024-11-10 17:48:49,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:48:49,913 INFO L85 PathProgramCache]: Analyzing trace with hash 36993463, now seen corresponding path program 1 times [2024-11-10 17:48:49,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:48:49,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665507640] [2024-11-10 17:48:49,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:48:49,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:48:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:48:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:48:50,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:48:50,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665507640] [2024-11-10 17:48:50,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665507640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:48:50,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:48:50,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:48:50,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731434994] [2024-11-10 17:48:50,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:48:50,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 17:48:50,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:48:50,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 17:48:50,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 17:48:50,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 253 [2024-11-10 17:48:50,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 253 transitions, 524 flow. Second operand has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 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) [2024-11-10 17:48:50,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:48:50,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 253 [2024-11-10 17:48:50,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand