./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/reorder_2-2.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/reorder_2-2.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 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:05:11,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:05:11,830 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:05:11,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:05:11,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:05:11,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:05:11,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:05:11,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:05:11,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:05:11,865 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:05:11,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:05:11,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:05:11,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:05:11,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:05:11,867 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:05:11,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:05:11,868 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:05:11,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:05:11,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:05:11,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:05:11,868 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:05:11,871 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:05:11,871 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:05:11,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:05:11,871 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:05:11,872 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:05:11,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:05:11,872 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:05:11,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:05:11,872 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:05:11,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:05:11,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:05:11,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:05:11,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:05:11,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:05:11,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:05:11,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:05:11,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:05:11,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:05:11,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:05:11,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:05:11,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:05:11,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 [2024-11-17 03:05:12,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:05:12,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:05:12,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:05:12,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:05:12,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:05:12,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/reorder_2-2.i [2024-11-17 03:05:13,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:05:13,721 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:05:13,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2-2.i [2024-11-17 03:05:13,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f80400c/0c4e4dd50aa74c1c8bc5ae58e672992a/FLAGa65860f97 [2024-11-17 03:05:14,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f80400c/0c4e4dd50aa74c1c8bc5ae58e672992a [2024-11-17 03:05:14,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:05:14,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:05:14,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:05:14,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:05:14,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:05:14,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71fd5874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14, skipping insertion in model container [2024-11-17 03:05:14,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:05:14,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:05:14,515 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:05:14,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:05:14,664 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:05:14,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14 WrapperNode [2024-11-17 03:05:14,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:05:14,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:05:14,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:05:14,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:05:14,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,743 INFO L138 Inliner]: procedures = 372, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 133 [2024-11-17 03:05:14,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:05:14,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:05:14,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:05:14,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:05:14,752 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,774 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-17 03:05:14,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:05:14,789 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:05:14,789 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:05:14,789 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:05:14,789 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (1/1) ... [2024-11-17 03:05:14,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:05:14,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:05:14,821 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 03:05:14,823 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 03:05:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:05:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 03:05:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 03:05:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:05:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 03:05:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 03:05:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 03:05:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-17 03:05:14,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-17 03:05:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 03:05:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 03:05:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 03:05:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:05:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-17 03:05:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-17 03:05:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:05:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:05:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 03:05:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:05:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:05:14,861 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 03:05:14,996 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:05:14,998 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:05:15,195 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1258: havoc main_~#checkPool~0#1.base, main_~#checkPool~0#1.offset; [2024-11-17 03:05:15,195 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1258-1: SUMMARY for call ULTIMATE.dealloc(main_~#checkPool~0#1.base, main_~#checkPool~0#1.offset); srcloc: null [2024-11-17 03:05:15,195 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1257: havoc main_~#setPool~0#1.base, main_~#setPool~0#1.offset; [2024-11-17 03:05:15,195 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1257-1: SUMMARY for call ULTIMATE.dealloc(main_~#setPool~0#1.base, main_~#setPool~0#1.offset); srcloc: null [2024-11-17 03:05:15,197 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:05:15,197 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:05:15,292 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:05:15,293 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:05:15,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:05:15 BoogieIcfgContainer [2024-11-17 03:05:15,293 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:05:15,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:05:15,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:05:15,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:05:15,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:05:14" (1/3) ... [2024-11-17 03:05:15,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9edf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:05:15, skipping insertion in model container [2024-11-17 03:05:15,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:14" (2/3) ... [2024-11-17 03:05:15,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9edf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:05:15, skipping insertion in model container [2024-11-17 03:05:15,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:05:15" (3/3) ... [2024-11-17 03:05:15,306 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i [2024-11-17 03:05:15,328 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:05:15,328 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-17 03:05:15,329 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:05:15,382 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 03:05:15,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 71 transitions, 162 flow [2024-11-17 03:05:15,458 INFO L124 PetriNetUnfolderBase]: 28/179 cut-off events. [2024-11-17 03:05:15,459 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-17 03:05:15,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 179 events. 28/179 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 791 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 93. Up to 8 conditions per place. [2024-11-17 03:05:15,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 71 transitions, 162 flow [2024-11-17 03:05:15,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 71 transitions, 162 flow [2024-11-17 03:05:15,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:05:15,480 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;@6722aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:05:15,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-17 03:05:15,484 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:05:15,484 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2024-11-17 03:05:15,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:05:15,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:05:15,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:05:15,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-17 03:05:15,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:05:15,490 INFO L85 PathProgramCache]: Analyzing trace with hash 10878940, now seen corresponding path program 1 times [2024-11-17 03:05:15,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:05:15,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180363306] [2024-11-17 03:05:15,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:05:15,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:05:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:05:15,632 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 03:05:15,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:05:15,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180363306] [2024-11-17 03:05:15,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180363306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:05:15,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:05:15,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:05:15,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135464836] [2024-11-17 03:05:15,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:05:15,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:05:15,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:05:15,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:05:15,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:05:15,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 71 [2024-11-17 03:05:15,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 71 transitions, 162 flow. Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:05:15,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:05:15,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 71 [2024-11-17 03:05:15,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:05:15,828 INFO L124 PetriNetUnfolderBase]: 214/781 cut-off events. [2024-11-17 03:05:15,829 INFO L125 PetriNetUnfolderBase]: For 113/173 co-relation queries the response was YES. [2024-11-17 03:05:15,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1218 conditions, 781 events. 214/781 cut-off events. For 113/173 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5140 event pairs, 187 based on Foata normal form. 128/751 useless extension candidates. Maximal degree in co-relation 875. Up to 396 conditions per place. [2024-11-17 03:05:15,838 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 25 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2024-11-17 03:05:15,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 192 flow [2024-11-17 03:05:15,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:05:15,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:05:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 106 transitions. [2024-11-17 03:05:15,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7464788732394366 [2024-11-17 03:05:15,851 INFO L175 Difference]: Start difference. First operand has 64 places, 71 transitions, 162 flow. Second operand 2 states and 106 transitions. [2024-11-17 03:05:15,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 192 flow [2024-11-17 03:05:15,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 61 transitions, 192 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:05:15,859 INFO L231 Difference]: Finished difference. Result has 62 places, 61 transitions, 142 flow [2024-11-17 03:05:15,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=62, PETRI_TRANSITIONS=61} [2024-11-17 03:05:15,865 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2024-11-17 03:05:15,865 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 61 transitions, 142 flow [2024-11-17 03:05:15,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:05:15,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:05:15,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:05:15,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:05:15,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-17 03:05:15,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:05:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1865703925, now seen corresponding path program 1 times [2024-11-17 03:05:15,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:05:15,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007069416] [2024-11-17 03:05:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:05:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:05:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:05:16,055 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 03:05:16,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:05:16,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007069416] [2024-11-17 03:05:16,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007069416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:05:16,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:05:16,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:05:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000335199] [2024-11-17 03:05:16,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:05:16,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:05:16,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:05:16,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:05:16,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:05:16,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 71 [2024-11-17 03:05:16,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 03:05:16,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:05:16,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 71 [2024-11-17 03:05:16,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:05:16,210 INFO L124 PetriNetUnfolderBase]: 258/838 cut-off events. [2024-11-17 03:05:16,210 INFO L125 PetriNetUnfolderBase]: For 61/91 co-relation queries the response was YES. [2024-11-17 03:05:16,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 838 events. 258/838 cut-off events. For 61/91 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5432 event pairs, 152 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 1348. Up to 330 conditions per place. [2024-11-17 03:05:16,214 INFO L140 encePairwiseOnDemand]: 67/71 looper letters, 32 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-11-17 03:05:16,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 66 transitions, 220 flow [2024-11-17 03:05:16,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:05:16,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:05:16,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-11-17 03:05:16,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6197183098591549 [2024-11-17 03:05:16,216 INFO L175 Difference]: Start difference. First operand has 62 places, 61 transitions, 142 flow. Second operand 3 states and 132 transitions. [2024-11-17 03:05:16,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 66 transitions, 220 flow [2024-11-17 03:05:16,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:05:16,219 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 142 flow [2024-11-17 03:05:16,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-11-17 03:05:16,220 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2024-11-17 03:05:16,220 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 142 flow [2024-11-17 03:05:16,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 03:05:16,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:05:16,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:05:16,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:05:16,221 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-17 03:05:16,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:05:16,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1865703926, now seen corresponding path program 1 times [2024-11-17 03:05:16,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:05:16,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789376142] [2024-11-17 03:05:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:05:16,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:05:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:05:16,481 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 03:05:16,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:05:16,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789376142] [2024-11-17 03:05:16,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789376142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:05:16,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:05:16,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:05:16,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102940820] [2024-11-17 03:05:16,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:05:16,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:05:16,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:05:16,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:05:16,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:05:16,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 71 [2024-11-17 03:05:16,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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 03:05:16,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:05:16,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 71 [2024-11-17 03:05:16,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:05:16,815 INFO L124 PetriNetUnfolderBase]: 581/1839 cut-off events. [2024-11-17 03:05:16,816 INFO L125 PetriNetUnfolderBase]: For 221/279 co-relation queries the response was YES. [2024-11-17 03:05:16,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3052 conditions, 1839 events. 581/1839 cut-off events. For 221/279 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 14883 event pairs, 396 based on Foata normal form. 1/1577 useless extension candidates. Maximal degree in co-relation 3046. Up to 560 conditions per place. [2024-11-17 03:05:16,824 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 55 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2024-11-17 03:05:16,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 89 transitions, 342 flow [2024-11-17 03:05:16,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:05:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:05:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-11-17 03:05:16,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6654929577464789 [2024-11-17 03:05:16,828 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 142 flow. Second operand 4 states and 189 transitions. [2024-11-17 03:05:16,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 89 transitions, 342 flow [2024-11-17 03:05:16,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 89 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:05:16,832 INFO L231 Difference]: Finished difference. Result has 65 places, 61 transitions, 164 flow [2024-11-17 03:05:16,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2024-11-17 03:05:16,833 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2024-11-17 03:05:16,834 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 164 flow [2024-11-17 03:05:16,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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 03:05:16,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:05:16,835 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:05:16,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:05:16,835 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-17 03:05:16,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:05:16,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1285691705, now seen corresponding path program 1 times [2024-11-17 03:05:16,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:05:16,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882517660] [2024-11-17 03:05:16,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:05:16,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:05:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 03:05:16,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 03:05:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 03:05:16,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 03:05:16,887 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 03:05:16,888 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-11-17 03:05:16,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2024-11-17 03:05:16,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2024-11-17 03:05:16,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2024-11-17 03:05:16,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-11-17 03:05:16,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-11-17 03:05:16,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-11-17 03:05:16,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-11-17 03:05:16,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2024-11-17 03:05:16,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-11-17 03:05:16,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-11-17 03:05:16,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2024-11-17 03:05:16,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2024-11-17 03:05:16,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2024-11-17 03:05:16,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-11-17 03:05:16,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:05:16,893 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-17 03:05:16,916 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:05:16,916 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:05:16,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:05:16 BasicIcfg [2024-11-17 03:05:16,922 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:05:16,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:05:16,922 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:05:16,922 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:05:16,923 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:05:15" (3/4) ... [2024-11-17 03:05:16,924 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 03:05:16,925 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:05:16,925 INFO L158 Benchmark]: Toolchain (without parser) took 2884.33ms. Allocated memory is still 201.3MB. Free memory was 127.6MB in the beginning and 103.5MB in the end (delta: 24.1MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2024-11-17 03:05:16,925 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:05:16,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.53ms. Allocated memory is still 201.3MB. Free memory was 127.6MB in the beginning and 164.5MB in the end (delta: -36.9MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2024-11-17 03:05:16,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.53ms. Allocated memory is still 201.3MB. Free memory was 164.5MB in the beginning and 161.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:05:16,926 INFO L158 Benchmark]: Boogie Preprocessor took 43.08ms. Allocated memory is still 201.3MB. Free memory was 161.8MB in the beginning and 159.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:05:16,927 INFO L158 Benchmark]: IcfgBuilder took 504.65ms. Allocated memory is still 201.3MB. Free memory was 159.7MB in the beginning and 129.3MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-17 03:05:16,927 INFO L158 Benchmark]: TraceAbstraction took 1627.27ms. Allocated memory is still 201.3MB. Free memory was 128.3MB in the beginning and 103.5MB in the end (delta: 24.8MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2024-11-17 03:05:16,929 INFO L158 Benchmark]: Witness Printer took 2.51ms. Allocated memory is still 201.3MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:05:16,930 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.53ms. Allocated memory is still 201.3MB. Free memory was 127.6MB in the beginning and 164.5MB in the end (delta: -36.9MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.53ms. Allocated memory is still 201.3MB. Free memory was 164.5MB in the beginning and 161.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.08ms. Allocated memory is still 201.3MB. Free memory was 161.8MB in the beginning and 159.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 504.65ms. Allocated memory is still 201.3MB. Free memory was 159.7MB in the beginning and 129.3MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1627.27ms. Allocated memory is still 201.3MB. Free memory was 128.3MB in the beginning and 103.5MB in the end (delta: 24.8MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * Witness Printer took 2.51ms. Allocated memory is still 201.3MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1254. Possible FailurePath: [L1238] static int iSet = 2; [L1239] static int iCheck = 2; [L1240] static int a = 0; [L1241] static int b = 0; [L1247] int i, err; VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1248] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1249] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1253] argv[1] [L1254] argv[2] [L1257] pthread_t setPool[iSet]; [L1258] pthread_t checkPool[iCheck]; [L1259] i = 0 VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=0, iSet=1073741824, setPool={4:0}] [L1259] COND TRUE i < iSet - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1266]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1260]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 75 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 334 IncrementalHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 20 mSDtfsCounter, 334 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-17 03:05:16,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/reorder_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:05:19,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:05:19,110 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-17 03:05:19,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:05:19,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:05:19,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:05:19,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:05:19,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:05:19,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:05:19,140 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:05:19,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:05:19,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:05:19,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:05:19,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:05:19,141 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:05:19,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:05:19,143 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:05:19,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:05:19,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:05:19,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:05:19,144 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:05:19,144 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:05:19,145 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:05:19,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:05:19,145 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:05:19,145 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 03:05:19,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:05:19,146 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 03:05:19,146 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:05:19,146 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:05:19,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:05:19,147 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:05:19,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:05:19,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:05:19,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:05:19,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:05:19,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:05:19,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:05:19,148 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 03:05:19,148 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 03:05:19,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:05:19,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:05:19,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:05:19,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:05:19,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 [2024-11-17 03:05:19,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:05:19,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:05:19,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:05:19,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:05:19,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:05:19,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/reorder_2-2.i [2024-11-17 03:05:20,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:05:21,223 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:05:21,224 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2-2.i [2024-11-17 03:05:21,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce75971f/c83a5b8fae3740a082ae82f108002d19/FLAGa88e6372a [2024-11-17 03:05:21,258 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce75971f/c83a5b8fae3740a082ae82f108002d19 [2024-11-17 03:05:21,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:05:21,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:05:21,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:05:21,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:05:21,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:05:21,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0e59c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21, skipping insertion in model container [2024-11-17 03:05:21,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:05:21,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:05:21,742 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:05:21,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:05:21,858 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:05:21,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21 WrapperNode [2024-11-17 03:05:21,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:05:21,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:05:21,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:05:21,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:05:21,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,911 INFO L138 Inliner]: procedures = 375, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2024-11-17 03:05:21,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:05:21,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:05:21,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:05:21,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:05:21,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,925 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,947 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-17 03:05:21,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,958 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:05:21,963 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:05:21,964 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:05:21,964 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:05:21,964 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (1/1) ... [2024-11-17 03:05:21,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:05:21,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:05:21,991 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 03:05:21,994 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 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-17 03:05:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:05:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-17 03:05:22,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-17 03:05:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:05:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-17 03:05:22,027 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-17 03:05:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:05:22,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:05:22,028 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 03:05:22,177 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:05:22,179 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:05:22,498 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1258: havoc main_~#checkPool~0#1.base, main_~#checkPool~0#1.offset; [2024-11-17 03:05:22,499 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1258-1: SUMMARY for call ULTIMATE.dealloc(main_~#checkPool~0#1.base, main_~#checkPool~0#1.offset); srcloc: null [2024-11-17 03:05:22,499 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1257: havoc main_~#setPool~0#1.base, main_~#setPool~0#1.offset; [2024-11-17 03:05:22,499 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1257-1: SUMMARY for call ULTIMATE.dealloc(main_~#setPool~0#1.base, main_~#setPool~0#1.offset); srcloc: null [2024-11-17 03:05:22,500 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:05:22,500 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:05:22,615 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:05:22,615 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:05:22,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:05:22 BoogieIcfgContainer [2024-11-17 03:05:22,615 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:05:22,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:05:22,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:05:22,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:05:22,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:05:21" (1/3) ... [2024-11-17 03:05:22,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1825cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:05:22, skipping insertion in model container [2024-11-17 03:05:22,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:05:21" (2/3) ... [2024-11-17 03:05:22,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1825cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:05:22, skipping insertion in model container [2024-11-17 03:05:22,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:05:22" (3/3) ... [2024-11-17 03:05:22,622 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i [2024-11-17 03:05:22,634 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:05:22,635 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-17 03:05:22,635 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:05:22,670 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 03:05:22,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 71 transitions, 162 flow [2024-11-17 03:05:22,783 INFO L124 PetriNetUnfolderBase]: 28/179 cut-off events. [2024-11-17 03:05:22,786 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-17 03:05:22,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 179 events. 28/179 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 790 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 93. Up to 8 conditions per place. [2024-11-17 03:05:22,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 71 transitions, 162 flow [2024-11-17 03:05:22,796 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 71 transitions, 162 flow [2024-11-17 03:05:22,809 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:05:22,821 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;@7b294676, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:05:22,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-17 03:05:22,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:05:22,827 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2024-11-17 03:05:22,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:05:22,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:05:22,828 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:05:22,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-17 03:05:22,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:05:22,836 INFO L85 PathProgramCache]: Analyzing trace with hash 10819256, now seen corresponding path program 1 times [2024-11-17 03:05:22,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 03:05:22,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39150374] [2024-11-17 03:05:22,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:05:22,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 03:05:22,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 03:05:22,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 03:05:22,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-17 03:05:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:05:22,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-17 03:05:22,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:05:22,930 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 03:05:22,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 03:05:22,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 03:05:22,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39150374] [2024-11-17 03:05:22,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39150374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:05:22,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:05:22,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:05:22,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961790774] [2024-11-17 03:05:22,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:05:22,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:05:22,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 03:05:22,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:05:22,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:05:22,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 71 [2024-11-17 03:05:22,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 71 transitions, 162 flow. Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:05:22,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:05:22,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 71 [2024-11-17 03:05:22,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:05:23,152 INFO L124 PetriNetUnfolderBase]: 214/781 cut-off events. [2024-11-17 03:05:23,155 INFO L125 PetriNetUnfolderBase]: For 99/159 co-relation queries the response was YES. [2024-11-17 03:05:23,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1218 conditions, 781 events. 214/781 cut-off events. For 99/159 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5134 event pairs, 187 based on Foata normal form. 128/754 useless extension candidates. Maximal degree in co-relation 875. Up to 396 conditions per place. [2024-11-17 03:05:23,164 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 25 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2024-11-17 03:05:23,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 192 flow [2024-11-17 03:05:23,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:05:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:05:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 106 transitions. [2024-11-17 03:05:23,176 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7464788732394366 [2024-11-17 03:05:23,177 INFO L175 Difference]: Start difference. First operand has 64 places, 71 transitions, 162 flow. Second operand 2 states and 106 transitions. [2024-11-17 03:05:23,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 192 flow [2024-11-17 03:05:23,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 61 transitions, 192 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:05:23,184 INFO L231 Difference]: Finished difference. Result has 62 places, 61 transitions, 142 flow [2024-11-17 03:05:23,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=62, PETRI_TRANSITIONS=61} [2024-11-17 03:05:23,188 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2024-11-17 03:05:23,188 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 61 transitions, 142 flow [2024-11-17 03:05:23,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:05:23,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:05:23,189 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:05:23,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-17 03:05:23,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 03:05:23,392 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-17 03:05:23,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:05:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1808326455, now seen corresponding path program 1 times [2024-11-17 03:05:23,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 03:05:23,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390610799] [2024-11-17 03:05:23,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:05:23,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 03:05:23,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 03:05:23,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 03:05:23,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-17 03:05:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:05:23,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:05:23,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:05:23,601 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2024-11-17 03:05:23,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2024-11-17 03:05:23,636 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 03:05:23,636 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 03:05:23,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 03:05:23,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390610799] [2024-11-17 03:05:23,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390610799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:05:23,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:05:23,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:05:23,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477877030] [2024-11-17 03:05:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:05:23,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:05:23,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 03:05:23,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:05:23,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:05:23,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 71 [2024-11-17 03:05:23,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 03:05:23,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:05:23,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 71 [2024-11-17 03:05:23,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:05:23,787 INFO L124 PetriNetUnfolderBase]: 258/838 cut-off events. [2024-11-17 03:05:23,787 INFO L125 PetriNetUnfolderBase]: For 61/91 co-relation queries the response was YES. [2024-11-17 03:05:23,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 838 events. 258/838 cut-off events. For 61/91 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5452 event pairs, 152 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 1348. Up to 330 conditions per place. [2024-11-17 03:05:23,795 INFO L140 encePairwiseOnDemand]: 67/71 looper letters, 32 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-11-17 03:05:23,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 66 transitions, 220 flow [2024-11-17 03:05:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:05:23,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:05:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-11-17 03:05:23,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6197183098591549 [2024-11-17 03:05:23,798 INFO L175 Difference]: Start difference. First operand has 62 places, 61 transitions, 142 flow. Second operand 3 states and 132 transitions. [2024-11-17 03:05:23,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 66 transitions, 220 flow [2024-11-17 03:05:23,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:05:23,802 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 142 flow [2024-11-17 03:05:23,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-11-17 03:05:23,803 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2024-11-17 03:05:23,803 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 142 flow [2024-11-17 03:05:23,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 03:05:23,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:05:23,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:05:23,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-17 03:05:24,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 03:05:24,006 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-17 03:05:24,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:05:24,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1808326456, now seen corresponding path program 1 times [2024-11-17 03:05:24,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 03:05:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684392889] [2024-11-17 03:05:24,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:05:24,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 03:05:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 03:05:24,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 03:05:24,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-17 03:05:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:05:24,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 03:05:24,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:05:24,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 03:05:24,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-11-17 03:05:24,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-17 03:05:24,149 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 03:05:24,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 03:05:24,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 03:05:24,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684392889] [2024-11-17 03:05:24,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684392889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:05:24,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:05:24,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:05:24,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911626463] [2024-11-17 03:05:24,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:05:24,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:05:24,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 03:05:24,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:05:24,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:05:24,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 71 [2024-11-17 03:05:24,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 03:05:24,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:05:24,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 71 [2024-11-17 03:05:24,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:05:24,497 INFO L124 PetriNetUnfolderBase]: 506/1916 cut-off events. [2024-11-17 03:05:24,498 INFO L125 PetriNetUnfolderBase]: For 223/283 co-relation queries the response was YES. [2024-11-17 03:05:24,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2994 conditions, 1916 events. 506/1916 cut-off events. For 223/283 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 16521 event pairs, 316 based on Foata normal form. 2/1599 useless extension candidates. Maximal degree in co-relation 2988. Up to 476 conditions per place. [2024-11-17 03:05:24,512 INFO L140 encePairwiseOnDemand]: 63/71 looper letters, 57 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2024-11-17 03:05:24,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 95 transitions, 367 flow [2024-11-17 03:05:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:05:24,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:05:24,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2024-11-17 03:05:24,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7077464788732394 [2024-11-17 03:05:24,517 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 142 flow. Second operand 4 states and 201 transitions. [2024-11-17 03:05:24,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 95 transitions, 367 flow [2024-11-17 03:05:24,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 95 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:05:24,520 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 180 flow [2024-11-17 03:05:24,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-17 03:05:24,521 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2024-11-17 03:05:24,521 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 180 flow [2024-11-17 03:05:24,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 03:05:24,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:05:24,522 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:05:24,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-17 03:05:24,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 03:05:24,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-17 03:05:24,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:05:24,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1949831868, now seen corresponding path program 1 times [2024-11-17 03:05:24,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 03:05:24,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554320327] [2024-11-17 03:05:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:05:24,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 03:05:24,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 03:05:24,729 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 03:05:24,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-17 03:05:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 03:05:24,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 03:05:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 03:05:24,822 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-17 03:05:24,822 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 03:05:24,824 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-11-17 03:05:24,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2024-11-17 03:05:24,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2024-11-17 03:05:24,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2024-11-17 03:05:24,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-11-17 03:05:24,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-11-17 03:05:24,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-11-17 03:05:24,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-11-17 03:05:24,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2024-11-17 03:05:24,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-11-17 03:05:24,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-11-17 03:05:24,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2024-11-17 03:05:24,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2024-11-17 03:05:24,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2024-11-17 03:05:24,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-11-17 03:05:24,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-17 03:05:25,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 03:05:25,030 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-17 03:05:25,050 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:05:25,051 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:05:25,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:05:25 BasicIcfg [2024-11-17 03:05:25,054 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:05:25,055 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:05:25,055 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:05:25,055 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:05:25,055 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:05:22" (3/4) ... [2024-11-17 03:05:25,056 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 03:05:25,057 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:05:25,058 INFO L158 Benchmark]: Toolchain (without parser) took 3796.34ms. Allocated memory was 75.5MB in the beginning and 153.1MB in the end (delta: 77.6MB). Free memory was 44.4MB in the beginning and 90.4MB in the end (delta: -46.0MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-11-17 03:05:25,059 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 48.2MB. Free memory was 26.5MB in the beginning and 26.4MB in the end (delta: 54.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:05:25,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.38ms. Allocated memory is still 75.5MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 101.8kB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2024-11-17 03:05:25,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.34ms. Allocated memory is still 75.5MB. Free memory was 44.3MB in the beginning and 41.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:05:25,060 INFO L158 Benchmark]: Boogie Preprocessor took 50.88ms. Allocated memory is still 75.5MB. Free memory was 41.5MB in the beginning and 38.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:05:25,060 INFO L158 Benchmark]: IcfgBuilder took 652.67ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 38.4MB in the beginning and 63.3MB in the end (delta: -24.9MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-11-17 03:05:25,060 INFO L158 Benchmark]: TraceAbstraction took 2436.45ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 62.4MB in the beginning and 91.5MB in the end (delta: -29.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-11-17 03:05:25,060 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 153.1MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:05:25,062 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 48.2MB. Free memory was 26.5MB in the beginning and 26.4MB in the end (delta: 54.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.38ms. Allocated memory is still 75.5MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 101.8kB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.34ms. Allocated memory is still 75.5MB. Free memory was 44.3MB in the beginning and 41.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.88ms. Allocated memory is still 75.5MB. Free memory was 41.5MB in the beginning and 38.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 652.67ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 38.4MB in the beginning and 63.3MB in the end (delta: -24.9MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2436.45ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 62.4MB in the beginning and 91.5MB in the end (delta: -29.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 153.1MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1254. Possible FailurePath: [L1238] static int iSet = 2; [L1239] static int iCheck = 2; [L1240] static int a = 0; [L1241] static int b = 0; [L1247] int i, err; VAL [\old(argc)=3, \old(argv)={6:5}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1248] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={6:5}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1249] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={6:5}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1253] argv[1] [L1254] argv[2] [L1257] pthread_t setPool[iSet]; [L1258] pthread_t checkPool[iCheck]; [L1259] i = 0 VAL [\old(argc)=3, \old(argv)={6:5}, a=0, argc=3, b=0, checkPool={3:0}, i=0, iCheck=0, iSet=1073741824, setPool={7:0}] [L1259] COND TRUE i < iSet - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1266]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1260]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 75 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 11 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 3 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-17 03:05:25,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample