./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 3289d67d 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-3289d67-m [2024-11-17 03:07:48,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:07:48,710 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:07:48,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:07:48,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:07:48,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:07:48,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:07:48,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:07:48,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:07:48,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:07:48,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:07:48,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:07:48,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:07:48,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:07:48,753 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:07:48,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:07:48,754 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:07:48,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:07:48,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:07:48,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:07:48,755 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:07:48,759 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:07:48,759 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:07:48,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:07:48,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:07:48,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:07:48,760 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:07:48,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:07:48,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:07:48,761 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:07:48,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:07:48,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:07:48,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:07:48,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:07:48,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:07:48,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:07:48,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:07:48,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:07:48,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:07:48,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:07:48,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:07:48,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:07:48,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 [2024-11-17 03:07:49,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:07:49,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:07:49,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:07:49,061 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:07:49,062 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:07:49,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-17 03:07:50,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:07:50,868 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:07:50,869 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-17 03:07:50,888 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99685f1cb/e480bb688997455ca470a0015cdf6693/FLAG29ab59140 [2024-11-17 03:07:50,907 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99685f1cb/e480bb688997455ca470a0015cdf6693 [2024-11-17 03:07:50,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:07:50,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:07:50,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:07:50,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:07:50,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:07:50,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:07:50" (1/1) ... [2024-11-17 03:07:50,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693641aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:50, skipping insertion in model container [2024-11-17 03:07:50,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:07:50" (1/1) ... [2024-11-17 03:07:50,972 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:07:51,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:07:51,402 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:07:51,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:07:51,499 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:07:51,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51 WrapperNode [2024-11-17 03:07:51,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:07:51,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:07:51,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:07:51,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:07:51,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,562 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 253 [2024-11-17 03:07:51,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:07:51,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:07:51,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:07:51,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:07:51,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,580 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,599 INFO L175 MemorySlicer]: Split 24 memory accesses to 4 slices as follows [2, 6, 12, 4]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 1, 2, 1]. The 9 writes are split as follows [0, 2, 5, 2]. [2024-11-17 03:07:51,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,607 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:07:51,617 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:07:51,617 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:07:51,617 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:07:51,618 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (1/1) ... [2024-11-17 03:07:51,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:07:51,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:07:51,646 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) [2024-11-17 03:07:51,648 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 [2024-11-17 03:07:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 03:07:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 03:07:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-17 03:07:51,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:07:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 03:07:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 03:07:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:07:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:07:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 03:07:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 03:07:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:07:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:07:51,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:07:51,692 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:07:51,836 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:07:51,839 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:07:52,278 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:07:52,278 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:07:52,873 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:07:52,874 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:07:52,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:07:52 BoogieIcfgContainer [2024-11-17 03:07:52,875 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:07:52,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:07:52,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:07:52,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:07:52,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:07:50" (1/3) ... [2024-11-17 03:07:52,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce8b589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:07:52, skipping insertion in model container [2024-11-17 03:07:52,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:07:51" (2/3) ... [2024-11-17 03:07:52,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce8b589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:07:52, skipping insertion in model container [2024-11-17 03:07:52,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:07:52" (3/3) ... [2024-11-17 03:07:52,885 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas.i [2024-11-17 03:07:52,904 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:07:52,905 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2024-11-17 03:07:52,905 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:07:53,011 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:07:53,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 91 transitions, 186 flow [2024-11-17 03:07:53,094 INFO L124 PetriNetUnfolderBase]: 12/98 cut-off events. [2024-11-17 03:07:53,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:07:53,103 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. [2024-11-17 03:07:53,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 91 transitions, 186 flow [2024-11-17 03:07:53,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 91 transitions, 186 flow [2024-11-17 03:07:53,119 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:07:53,126 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;@549aa431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:07:53,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-11-17 03:07:53,131 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:07:53,131 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-17 03:07:53,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:07:53,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:07:53,132 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:07:53,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:07:53,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:07:53,139 INFO L85 PathProgramCache]: Analyzing trace with hash 23910263, now seen corresponding path program 1 times [2024-11-17 03:07:53,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:07:53,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702417734] [2024-11-17 03:07:53,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:07:53,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:07:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:07:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:07:53,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:07:53,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702417734] [2024-11-17 03:07:53,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702417734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:07:53,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:07:53,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:07:53,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500700517] [2024-11-17 03:07:53,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:07:53,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:07:53,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:07:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:07:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:07:53,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 91 [2024-11-17 03:07:53,949 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) [2024-11-17 03:07:53,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:07:53,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 91 [2024-11-17 03:07:53,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:07:54,144 INFO L124 PetriNetUnfolderBase]: 99/279 cut-off events. [2024-11-17 03:07:54,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:07:54,147 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. [2024-11-17 03:07:54,152 INFO L140 encePairwiseOnDemand]: 73/91 looper letters, 46 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2024-11-17 03:07:54,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 232 flow [2024-11-17 03:07:54,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:07:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:07:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2024-11-17 03:07:54,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6263736263736264 [2024-11-17 03:07:54,168 INFO L175 Difference]: Start difference. First operand has 83 places, 91 transitions, 186 flow. Second operand 2 states and 114 transitions. [2024-11-17 03:07:54,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 232 flow [2024-11-17 03:07:54,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 68 transitions, 232 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:07:54,174 INFO L231 Difference]: Finished difference. Result has 66 places, 68 transitions, 140 flow [2024-11-17 03:07:54,176 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} [2024-11-17 03:07:54,179 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, -17 predicate places. [2024-11-17 03:07:54,182 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 68 transitions, 140 flow [2024-11-17 03:07:54,182 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) [2024-11-17 03:07:54,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:07:54,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:07:54,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:07:54,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:07:54,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:07:54,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1502051568, now seen corresponding path program 1 times [2024-11-17 03:07:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:07:54,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46560672] [2024-11-17 03:07:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:07:54,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:07:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:07:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:07:54,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:07:54,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46560672] [2024-11-17 03:07:54,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46560672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:07:54,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:07:54,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:07:54,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693733503] [2024-11-17 03:07:54,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:07:54,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:07:54,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:07:54,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:07:54,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:07:54,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 91 [2024-11-17 03:07:54,736 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) [2024-11-17 03:07:54,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:07:54,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 91 [2024-11-17 03:07:54,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:07:54,971 INFO L124 PetriNetUnfolderBase]: 155/430 cut-off events. [2024-11-17 03:07:54,972 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:07:54,974 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. [2024-11-17 03:07:54,980 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 71 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-17 03:07:54,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 96 transitions, 344 flow [2024-11-17 03:07:54,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:07:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:07:54,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-17 03:07:54,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5531135531135531 [2024-11-17 03:07:54,983 INFO L175 Difference]: Start difference. First operand has 66 places, 68 transitions, 140 flow. Second operand 3 states and 151 transitions. [2024-11-17 03:07:54,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 96 transitions, 344 flow [2024-11-17 03:07:54,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 96 transitions, 344 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:07:54,986 INFO L231 Difference]: Finished difference. Result has 67 places, 68 transitions, 153 flow [2024-11-17 03:07:54,987 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} [2024-11-17 03:07:54,987 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, -16 predicate places. [2024-11-17 03:07:54,988 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 153 flow [2024-11-17 03:07:54,988 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) [2024-11-17 03:07:54,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:07:54,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:07:54,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:07:54,989 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:07:54,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:07:54,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1502051569, now seen corresponding path program 1 times [2024-11-17 03:07:54,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:07:54,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780307740] [2024-11-17 03:07:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:07:54,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:07:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:07:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:07:55,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:07:55,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780307740] [2024-11-17 03:07:55,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780307740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:07:55,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:07:55,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:07:55,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257841979] [2024-11-17 03:07:55,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:07:55,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:07:55,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:07:55,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:07:55,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:07:55,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 91 [2024-11-17 03:07:55,487 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) [2024-11-17 03:07:55,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:07:55,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 91 [2024-11-17 03:07:55,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:07:55,628 INFO L124 PetriNetUnfolderBase]: 149/414 cut-off events. [2024-11-17 03:07:55,629 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-17 03:07:55,631 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. [2024-11-17 03:07:55,634 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 43 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-11-17 03:07:55,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 66 transitions, 237 flow [2024-11-17 03:07:55,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:07:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:07:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-17 03:07:55,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4358974358974359 [2024-11-17 03:07:55,636 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 153 flow. Second operand 3 states and 119 transitions. [2024-11-17 03:07:55,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 66 transitions, 237 flow [2024-11-17 03:07:55,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:07:55,640 INFO L231 Difference]: Finished difference. Result has 66 places, 66 transitions, 148 flow [2024-11-17 03:07:55,640 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} [2024-11-17 03:07:55,641 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, -17 predicate places. [2024-11-17 03:07:55,641 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 66 transitions, 148 flow [2024-11-17 03:07:55,642 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) [2024-11-17 03:07:55,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:07:55,642 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 03:07:55,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:07:55,642 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:07:55,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:07:55,644 INFO L85 PathProgramCache]: Analyzing trace with hash 359880185, now seen corresponding path program 1 times [2024-11-17 03:07:55,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:07:55,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145753357] [2024-11-17 03:07:55,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:07:55,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:07:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 03:07:55,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 03:07:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 03:07:55,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 03:07:55,966 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 03:07:55,967 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (79 of 80 remaining) [2024-11-17 03:07:55,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 80 remaining) [2024-11-17 03:07:55,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 80 remaining) [2024-11-17 03:07:55,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 80 remaining) [2024-11-17 03:07:55,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 80 remaining) [2024-11-17 03:07:55,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 80 remaining) [2024-11-17 03:07:55,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 80 remaining) [2024-11-17 03:07:55,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 80 remaining) [2024-11-17 03:07:55,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 80 remaining) [2024-11-17 03:07:55,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 80 remaining) [2024-11-17 03:07:55,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 80 remaining) [2024-11-17 03:07:55,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 80 remaining) [2024-11-17 03:07:55,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 80 remaining) [2024-11-17 03:07:55,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 80 remaining) [2024-11-17 03:07:55,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 80 remaining) [2024-11-17 03:07:55,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 80 remaining) [2024-11-17 03:07:55,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 80 remaining) [2024-11-17 03:07:55,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 80 remaining) [2024-11-17 03:07:55,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 80 remaining) [2024-11-17 03:07:55,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 80 remaining) [2024-11-17 03:07:55,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 80 remaining) [2024-11-17 03:07:55,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 80 remaining) [2024-11-17 03:07:55,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 80 remaining) [2024-11-17 03:07:55,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (56 of 80 remaining) [2024-11-17 03:07:55,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 80 remaining) [2024-11-17 03:07:55,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 80 remaining) [2024-11-17 03:07:55,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (53 of 80 remaining) [2024-11-17 03:07:55,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 80 remaining) [2024-11-17 03:07:55,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 80 remaining) [2024-11-17 03:07:55,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (50 of 80 remaining) [2024-11-17 03:07:55,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 80 remaining) [2024-11-17 03:07:55,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 80 remaining) [2024-11-17 03:07:55,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 80 remaining) [2024-11-17 03:07:55,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 80 remaining) [2024-11-17 03:07:55,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 80 remaining) [2024-11-17 03:07:55,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 80 remaining) [2024-11-17 03:07:55,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 80 remaining) [2024-11-17 03:07:55,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 80 remaining) [2024-11-17 03:07:55,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 80 remaining) [2024-11-17 03:07:55,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 80 remaining) [2024-11-17 03:07:55,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (39 of 80 remaining) [2024-11-17 03:07:55,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 80 remaining) [2024-11-17 03:07:55,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 80 remaining) [2024-11-17 03:07:55,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 80 remaining) [2024-11-17 03:07:55,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 80 remaining) [2024-11-17 03:07:55,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 80 remaining) [2024-11-17 03:07:55,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 80 remaining) [2024-11-17 03:07:55,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 80 remaining) [2024-11-17 03:07:55,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 80 remaining) [2024-11-17 03:07:55,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 80 remaining) [2024-11-17 03:07:55,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 80 remaining) [2024-11-17 03:07:55,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 80 remaining) [2024-11-17 03:07:55,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 80 remaining) [2024-11-17 03:07:55,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 80 remaining) [2024-11-17 03:07:55,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 80 remaining) [2024-11-17 03:07:55,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 80 remaining) [2024-11-17 03:07:55,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 80 remaining) [2024-11-17 03:07:55,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 80 remaining) [2024-11-17 03:07:55,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 80 remaining) [2024-11-17 03:07:55,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 80 remaining) [2024-11-17 03:07:55,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 80 remaining) [2024-11-17 03:07:55,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 80 remaining) [2024-11-17 03:07:55,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 80 remaining) [2024-11-17 03:07:55,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (16 of 80 remaining) [2024-11-17 03:07:55,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 80 remaining) [2024-11-17 03:07:55,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 80 remaining) [2024-11-17 03:07:55,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (13 of 80 remaining) [2024-11-17 03:07:55,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 80 remaining) [2024-11-17 03:07:55,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 80 remaining) [2024-11-17 03:07:55,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (10 of 80 remaining) [2024-11-17 03:07:55,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 80 remaining) [2024-11-17 03:07:55,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 80 remaining) [2024-11-17 03:07:55,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 80 remaining) [2024-11-17 03:07:55,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 80 remaining) [2024-11-17 03:07:55,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 80 remaining) [2024-11-17 03:07:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 80 remaining) [2024-11-17 03:07:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 80 remaining) [2024-11-17 03:07:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 80 remaining) [2024-11-17 03:07:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 80 remaining) [2024-11-17 03:07:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 80 remaining) [2024-11-17 03:07:55,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:07:55,991 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-17 03:07:55,994 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 03:07:55,994 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-17 03:07:56,087 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:07:56,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 172 transitions, 354 flow [2024-11-17 03:07:56,118 INFO L124 PetriNetUnfolderBase]: 23/187 cut-off events. [2024-11-17 03:07:56,118 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 03:07:56,121 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. [2024-11-17 03:07:56,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 172 transitions, 354 flow [2024-11-17 03:07:56,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 172 transitions, 354 flow [2024-11-17 03:07:56,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:07:56,127 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;@549aa431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:07:56,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2024-11-17 03:07:56,144 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:07:56,144 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-17 03:07:56,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:07:56,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:07:56,145 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:07:56,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-17 03:07:56,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:07:56,145 INFO L85 PathProgramCache]: Analyzing trace with hash 29205111, now seen corresponding path program 1 times [2024-11-17 03:07:56,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:07:56,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563170190] [2024-11-17 03:07:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:07:56,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:07:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:07:56,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:07:56,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:07:56,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563170190] [2024-11-17 03:07:56,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563170190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:07:56,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:07:56,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:07:56,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981485358] [2024-11-17 03:07:56,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:07:56,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:07:56,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:07:56,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:07:56,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:07:56,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 172 [2024-11-17 03:07:56,527 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) [2024-11-17 03:07:56,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:07:56,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 172 [2024-11-17 03:07:56,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:07:58,454 INFO L124 PetriNetUnfolderBase]: 9445/15951 cut-off events. [2024-11-17 03:07:58,455 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-17 03:07:58,482 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. [2024-11-17 03:07:58,594 INFO L140 encePairwiseOnDemand]: 138/172 looper letters, 89 selfloop transitions, 0 changer transitions 0/131 dead transitions. [2024-11-17 03:07:58,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 450 flow [2024-11-17 03:07:58,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:07:58,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:07:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 215 transitions. [2024-11-17 03:07:58,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-17 03:07:58,600 INFO L175 Difference]: Start difference. First operand has 156 places, 172 transitions, 354 flow. Second operand 2 states and 215 transitions. [2024-11-17 03:07:58,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 450 flow [2024-11-17 03:07:58,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 131 transitions, 450 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:07:58,607 INFO L231 Difference]: Finished difference. Result has 125 places, 131 transitions, 272 flow [2024-11-17 03:07:58,608 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} [2024-11-17 03:07:58,609 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -31 predicate places. [2024-11-17 03:07:58,610 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 131 transitions, 272 flow [2024-11-17 03:07:58,610 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) [2024-11-17 03:07:58,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:07:58,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:07:58,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:07:58,611 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-17 03:07:58,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:07:58,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1999449152, now seen corresponding path program 1 times [2024-11-17 03:07:58,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:07:58,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178710848] [2024-11-17 03:07:58,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:07:58,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:07:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:07:59,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:07:59,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:07:59,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178710848] [2024-11-17 03:07:59,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178710848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:07:59,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:07:59,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:07:59,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835289159] [2024-11-17 03:07:59,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:07:59,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:07:59,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:07:59,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:07:59,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:07:59,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 172 [2024-11-17 03:07:59,055 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) [2024-11-17 03:07:59,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:07:59,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 172 [2024-11-17 03:07:59,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:08:02,015 INFO L124 PetriNetUnfolderBase]: 15305/25628 cut-off events. [2024-11-17 03:08:02,016 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-17 03:08:02,071 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. [2024-11-17 03:08:02,196 INFO L140 encePairwiseOnDemand]: 163/172 looper letters, 157 selfloop transitions, 5 changer transitions 0/204 dead transitions. [2024-11-17 03:08:02,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 204 transitions, 747 flow [2024-11-17 03:08:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:08:02,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:08:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2024-11-17 03:08:02,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5891472868217055 [2024-11-17 03:08:02,199 INFO L175 Difference]: Start difference. First operand has 125 places, 131 transitions, 272 flow. Second operand 3 states and 304 transitions. [2024-11-17 03:08:02,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 204 transitions, 747 flow [2024-11-17 03:08:02,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 204 transitions, 747 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:08:02,206 INFO L231 Difference]: Finished difference. Result has 128 places, 135 transitions, 311 flow [2024-11-17 03:08:02,207 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} [2024-11-17 03:08:02,208 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -28 predicate places. [2024-11-17 03:08:02,208 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 135 transitions, 311 flow [2024-11-17 03:08:02,208 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) [2024-11-17 03:08:02,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:08:02,209 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:08:02,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:08:02,209 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-17 03:08:02,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:08:02,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1999449151, now seen corresponding path program 1 times [2024-11-17 03:08:02,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:08:02,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606700383] [2024-11-17 03:08:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:08:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:08:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:08:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:08:02,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:08:02,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606700383] [2024-11-17 03:08:02,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606700383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:08:02,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:08:02,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:08:02,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625780724] [2024-11-17 03:08:02,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:08:02,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:08:02,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:08:02,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:08:02,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:08:02,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 172 [2024-11-17 03:08:02,598 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) [2024-11-17 03:08:02,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:08:02,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 172 [2024-11-17 03:08:02,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:08:05,021 INFO L124 PetriNetUnfolderBase]: 13552/23049 cut-off events. [2024-11-17 03:08:05,021 INFO L125 PetriNetUnfolderBase]: For 1283/1283 co-relation queries the response was YES. [2024-11-17 03:08:05,062 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. [2024-11-17 03:08:05,306 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 88 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-17 03:08:05,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 481 flow [2024-11-17 03:08:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:08:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:08:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2024-11-17 03:08:05,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43992248062015504 [2024-11-17 03:08:05,308 INFO L175 Difference]: Start difference. First operand has 128 places, 135 transitions, 311 flow. Second operand 3 states and 227 transitions. [2024-11-17 03:08:05,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 481 flow [2024-11-17 03:08:05,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 131 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:08:05,313 INFO L231 Difference]: Finished difference. Result has 125 places, 131 transitions, 300 flow [2024-11-17 03:08:05,313 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} [2024-11-17 03:08:05,314 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -31 predicate places. [2024-11-17 03:08:05,314 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 131 transitions, 300 flow [2024-11-17 03:08:05,314 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) [2024-11-17 03:08:05,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:08:05,314 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:08:05,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:08:05,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-17 03:08:05,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:08:05,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1312885959, now seen corresponding path program 1 times [2024-11-17 03:08:05,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:08:05,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569532681] [2024-11-17 03:08:05,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:08:05,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:08:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:08:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:08:05,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:08:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569532681] [2024-11-17 03:08:05,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569532681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:08:05,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:08:05,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:08:05,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740551024] [2024-11-17 03:08:05,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:08:05,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:08:05,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:08:05,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:08:05,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:08:05,648 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 172 [2024-11-17 03:08:05,649 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) [2024-11-17 03:08:05,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:08:05,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 172 [2024-11-17 03:08:05,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:08:07,579 INFO L124 PetriNetUnfolderBase]: 13266/22320 cut-off events. [2024-11-17 03:08:07,579 INFO L125 PetriNetUnfolderBase]: For 1292/1304 co-relation queries the response was YES. [2024-11-17 03:08:07,625 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. [2024-11-17 03:08:07,725 INFO L140 encePairwiseOnDemand]: 161/172 looper letters, 147 selfloop transitions, 5 changer transitions 0/192 dead transitions. [2024-11-17 03:08:07,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 192 transitions, 731 flow [2024-11-17 03:08:07,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:08:07,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:08:07,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-11-17 03:08:07,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.562015503875969 [2024-11-17 03:08:07,728 INFO L175 Difference]: Start difference. First operand has 125 places, 131 transitions, 300 flow. Second operand 3 states and 290 transitions. [2024-11-17 03:08:07,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 192 transitions, 731 flow [2024-11-17 03:08:07,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 192 transitions, 730 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:08:07,732 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 326 flow [2024-11-17 03:08:07,732 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} [2024-11-17 03:08:07,733 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -29 predicate places. [2024-11-17 03:08:07,733 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 326 flow [2024-11-17 03:08:07,733 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) [2024-11-17 03:08:07,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:08:07,734 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:08:07,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:08:07,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-17 03:08:07,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:08:07,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1312885960, now seen corresponding path program 1 times [2024-11-17 03:08:07,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:08:07,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022151543] [2024-11-17 03:08:07,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:08:07,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:08:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:08:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:08:08,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:08:08,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022151543] [2024-11-17 03:08:08,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022151543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:08:08,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:08:08,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:08:08,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238182747] [2024-11-17 03:08:08,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:08:08,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:08:08,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:08:08,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:08:08,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:08:08,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 172 [2024-11-17 03:08:08,189 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) [2024-11-17 03:08:08,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:08:08,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 172 [2024-11-17 03:08:08,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:08:09,868 INFO L124 PetriNetUnfolderBase]: 11124/19123 cut-off events. [2024-11-17 03:08:09,869 INFO L125 PetriNetUnfolderBase]: For 1919/1943 co-relation queries the response was YES. [2024-11-17 03:08:09,897 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. [2024-11-17 03:08:09,971 INFO L140 encePairwiseOnDemand]: 163/172 looper letters, 82 selfloop transitions, 1 changer transitions 0/123 dead transitions. [2024-11-17 03:08:09,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 123 transitions, 476 flow [2024-11-17 03:08:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:08:09,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:08:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-11-17 03:08:09,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42441860465116277 [2024-11-17 03:08:09,974 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 326 flow. Second operand 3 states and 219 transitions. [2024-11-17 03:08:09,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 123 transitions, 476 flow [2024-11-17 03:08:09,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 123 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:08:09,980 INFO L231 Difference]: Finished difference. Result has 119 places, 123 transitions, 302 flow [2024-11-17 03:08:09,981 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} [2024-11-17 03:08:09,983 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -37 predicate places. [2024-11-17 03:08:09,983 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 123 transitions, 302 flow [2024-11-17 03:08:09,984 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) [2024-11-17 03:08:09,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:08:09,984 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-17 03:08:09,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:08:09,984 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2024-11-17 03:08:09,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:08:09,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1271346155, now seen corresponding path program 1 times [2024-11-17 03:08:09,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:08:09,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63712336] [2024-11-17 03:08:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:08:09,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:08:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 03:08:10,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 03:08:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 03:08:10,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 03:08:10,349 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 03:08:10,350 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (118 of 119 remaining) [2024-11-17 03:08:10,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 119 remaining) [2024-11-17 03:08:10,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 119 remaining) [2024-11-17 03:08:10,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 119 remaining) [2024-11-17 03:08:10,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 119 remaining) [2024-11-17 03:08:10,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 119 remaining) [2024-11-17 03:08:10,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 119 remaining) [2024-11-17 03:08:10,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 119 remaining) [2024-11-17 03:08:10,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (110 of 119 remaining) [2024-11-17 03:08:10,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 119 remaining) [2024-11-17 03:08:10,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 119 remaining) [2024-11-17 03:08:10,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (107 of 119 remaining) [2024-11-17 03:08:10,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 119 remaining) [2024-11-17 03:08:10,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 119 remaining) [2024-11-17 03:08:10,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (104 of 119 remaining) [2024-11-17 03:08:10,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 119 remaining) [2024-11-17 03:08:10,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 119 remaining) [2024-11-17 03:08:10,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 119 remaining) [2024-11-17 03:08:10,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 119 remaining) [2024-11-17 03:08:10,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 119 remaining) [2024-11-17 03:08:10,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 119 remaining) [2024-11-17 03:08:10,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 119 remaining) [2024-11-17 03:08:10,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 119 remaining) [2024-11-17 03:08:10,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (95 of 119 remaining) [2024-11-17 03:08:10,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 119 remaining) [2024-11-17 03:08:10,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 119 remaining) [2024-11-17 03:08:10,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (92 of 119 remaining) [2024-11-17 03:08:10,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 119 remaining) [2024-11-17 03:08:10,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (90 of 119 remaining) [2024-11-17 03:08:10,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (89 of 119 remaining) [2024-11-17 03:08:10,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 119 remaining) [2024-11-17 03:08:10,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (78 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 119 remaining) [2024-11-17 03:08:10,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 119 remaining) [2024-11-17 03:08:10,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 119 remaining) [2024-11-17 03:08:10,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 119 remaining) [2024-11-17 03:08:10,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 119 remaining) [2024-11-17 03:08:10,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 119 remaining) [2024-11-17 03:08:10,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 119 remaining) [2024-11-17 03:08:10,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 119 remaining) [2024-11-17 03:08:10,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 119 remaining) [2024-11-17 03:08:10,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 119 remaining) [2024-11-17 03:08:10,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 119 remaining) [2024-11-17 03:08:10,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 119 remaining) [2024-11-17 03:08:10,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 119 remaining) [2024-11-17 03:08:10,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 119 remaining) [2024-11-17 03:08:10,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 119 remaining) [2024-11-17 03:08:10,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 119 remaining) [2024-11-17 03:08:10,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 119 remaining) [2024-11-17 03:08:10,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 119 remaining) [2024-11-17 03:08:10,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 119 remaining) [2024-11-17 03:08:10,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 119 remaining) [2024-11-17 03:08:10,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (55 of 119 remaining) [2024-11-17 03:08:10,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 119 remaining) [2024-11-17 03:08:10,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 119 remaining) [2024-11-17 03:08:10,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (52 of 119 remaining) [2024-11-17 03:08:10,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 119 remaining) [2024-11-17 03:08:10,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 119 remaining) [2024-11-17 03:08:10,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (49 of 119 remaining) [2024-11-17 03:08:10,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 119 remaining) [2024-11-17 03:08:10,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 119 remaining) [2024-11-17 03:08:10,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 119 remaining) [2024-11-17 03:08:10,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 119 remaining) [2024-11-17 03:08:10,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 119 remaining) [2024-11-17 03:08:10,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 119 remaining) [2024-11-17 03:08:10,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 119 remaining) [2024-11-17 03:08:10,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 119 remaining) [2024-11-17 03:08:10,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 119 remaining) [2024-11-17 03:08:10,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 119 remaining) [2024-11-17 03:08:10,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 119 remaining) [2024-11-17 03:08:10,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 119 remaining) [2024-11-17 03:08:10,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONARRAY_INDEX (16 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (13 of 119 remaining) [2024-11-17 03:08:10,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONARRAY_INDEX (10 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 119 remaining) [2024-11-17 03:08:10,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 119 remaining) [2024-11-17 03:08:10,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 03:08:10,364 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-17 03:08:10,365 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 03:08:10,366 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-17 03:08:10,489 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:08:10,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 253 transitions, 524 flow [2024-11-17 03:08:10,544 INFO L124 PetriNetUnfolderBase]: 34/276 cut-off events. [2024-11-17 03:08:10,545 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-17 03:08:10,551 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. [2024-11-17 03:08:10,551 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 253 transitions, 524 flow [2024-11-17 03:08:10,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 253 transitions, 524 flow [2024-11-17 03:08:10,561 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:08:10,562 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;@549aa431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:08:10,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 158 error locations. [2024-11-17 03:08:10,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:08:10,564 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-17 03:08:10,564 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:08:10,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:08:10,565 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:08:10,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 155 more)] === [2024-11-17 03:08:10,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:08:10,566 INFO L85 PathProgramCache]: Analyzing trace with hash 36993463, now seen corresponding path program 1 times [2024-11-17 03:08:10,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:08:10,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885174052] [2024-11-17 03:08:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:08:10,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:08:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:08:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:08:10,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:08:10,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885174052] [2024-11-17 03:08:10,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885174052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:08:10,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:08:10,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:08:10,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455472532] [2024-11-17 03:08:10,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:08:10,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:08:10,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:08:10,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:08:10,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:08:10,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 253 [2024-11-17 03:08:10,963 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) [2024-11-17 03:08:10,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:08:10,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 253 [2024-11-17 03:08:10,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand