./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread/reorder_5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread/reorder_5-2.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 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:46:18,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:46:18,542 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-04-30 10:46:18,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:46:18,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:46:18,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:46:18,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:46:18,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:46:18,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:46:18,570 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:46:18,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:46:18,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:46:18,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:46:18,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:46:18,571 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:46:18,572 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:46:18,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:46:18,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:46:18,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:46:18,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:46:18,573 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 [2025-04-30 10:46:18,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:46:18,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:46:18,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:46:18,793 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:46:18,794 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:46:18,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/reorder_5-2.i [2025-04-30 10:46:20,069 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d57a5367e/40bf40b1701a4c1b983d8729280c76a0/FLAG57d7d2018 [2025-04-30 10:46:20,317 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:46:20,319 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/reorder_5-2.i [2025-04-30 10:46:20,337 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d57a5367e/40bf40b1701a4c1b983d8729280c76a0/FLAG57d7d2018 [2025-04-30 10:46:21,069 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d57a5367e/40bf40b1701a4c1b983d8729280c76a0 [2025-04-30 10:46:21,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:46:21,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:46:21,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:46:21,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:46:21,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:46:21,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290797f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21, skipping insertion in model container [2025-04-30 10:46:21,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:46:21,600 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:46:21,607 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:46:21,682 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:46:21,740 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:46:21,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21 WrapperNode [2025-04-30 10:46:21,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:46:21,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:46:21,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:46:21,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:46:21,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,775 INFO L138 Inliner]: procedures = 371, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 125 [2025-04-30 10:46:21,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:46:21,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:46:21,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:46:21,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:46:21,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,802 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]. [2025-04-30 10:46:21,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,807 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,809 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:46:21,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:46:21,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:46:21,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:46:21,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (1/1) ... [2025-04-30 10:46:21,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:46:21,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:46:21,842 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) [2025-04-30 10:46:21,844 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 [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2025-04-30 10:46:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2025-04-30 10:46:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-30 10:46:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-30 10:46:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-30 10:46:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:46:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2025-04-30 10:46:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2025-04-30 10:46:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:46:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:46:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-30 10:46:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:46:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:46:21,862 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:46:21,960 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:46:21,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:46:22,135 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:46:22,135 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:46:22,237 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:46:22,240 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:46:22,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:46:22 BoogieIcfgContainer [2025-04-30 10:46:22,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:46:22,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:46:22,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:46:22,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:46:22,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:46:21" (1/3) ... [2025-04-30 10:46:22,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3d9cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:46:22, skipping insertion in model container [2025-04-30 10:46:22,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:21" (2/3) ... [2025-04-30 10:46:22,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3d9cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:46:22, skipping insertion in model container [2025-04-30 10:46:22,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:46:22" (3/3) ... [2025-04-30 10:46:22,247 INFO L128 eAbstractionObserver]: Analyzing ICFG reorder_5-2.i [2025-04-30 10:46:22,256 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:46:22,257 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_5-2.i that has 3 procedures, 48 locations, 52 edges, 1 initial locations, 4 loop locations, and 12 error locations. [2025-04-30 10:46:22,257 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:46:22,293 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-30 10:46:22,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 56 transitions, 132 flow [2025-04-30 10:46:22,358 INFO L116 PetriNetUnfolderBase]: 12/131 cut-off events. [2025-04-30 10:46:22,359 INFO L117 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-04-30 10:46:22,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 12/131 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 636 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2025-04-30 10:46:22,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 56 transitions, 132 flow [2025-04-30 10:46:22,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 56 transitions, 132 flow [2025-04-30 10:46:22,374 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:46:22,384 INFO L340 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;@7ba918ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:46:22,384 INFO L341 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-04-30 10:46:22,388 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:46:22,388 INFO L116 PetriNetUnfolderBase]: 1/6 cut-off events. [2025-04-30 10:46:22,388 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:46:22,388 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:46:22,389 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-04-30 10:46:22,389 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-04-30 10:46:22,394 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:46:22,394 INFO L85 PathProgramCache]: Analyzing trace with hash 11459847, now seen corresponding path program 1 times [2025-04-30 10:46:22,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:46:22,399 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422724027] [2025-04-30 10:46:22,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:46:22,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:46:22,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-30 10:46:22,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-30 10:46:22,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:22,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:46:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:46:22,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:46:22,504 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422724027] [2025-04-30 10:46:22,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422724027] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:46:22,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:46:22,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-30 10:46:22,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976575897] [2025-04-30 10:46:22,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:46:22,511 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-30 10:46:22,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:46:22,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-30 10:46:22,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:46:22,529 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2025-04-30 10:46:22,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2025-04-30 10:46:22,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:46:22,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2025-04-30 10:46:22,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:46:22,648 INFO L116 PetriNetUnfolderBase]: 86/374 cut-off events. [2025-04-30 10:46:22,648 INFO L117 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2025-04-30 10:46:22,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 374 events. 86/374 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2564 event pairs, 71 based on Foata normal form. 24/272 useless extension candidates. Maximal degree in co-relation 373. Up to 190 conditions per place. [2025-04-30 10:46:22,651 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 24 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2025-04-30 10:46:22,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 172 flow [2025-04-30 10:46:22,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-30 10:46:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-30 10:46:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2025-04-30 10:46:22,659 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-04-30 10:46:22,660 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 132 flow. Second operand 2 states and 84 transitions. [2025-04-30 10:46:22,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 172 flow [2025-04-30 10:46:22,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:46:22,665 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 124 flow [2025-04-30 10:46:22,666 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2025-04-30 10:46:22,668 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2025-04-30 10:46:22,669 INFO L485 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 124 flow [2025-04-30 10:46:22,669 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2025-04-30 10:46:22,669 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:46:22,669 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-04-30 10:46:22,669 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:46:22,669 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-04-30 10:46:22,670 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:46:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash 355326894, now seen corresponding path program 1 times [2025-04-30 10:46:22,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:46:22,670 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40221679] [2025-04-30 10:46:22,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:46:22,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:46:22,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-30 10:46:22,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-30 10:46:22,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:22,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:46:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:46:22,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:46:22,803 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40221679] [2025-04-30 10:46:22,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40221679] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:46:22,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:46:22,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:46:22,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846919525] [2025-04-30 10:46:22,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:46:22,804 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:46:22,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:46:22,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:46:22,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:46:22,832 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2025-04-30 10:46:22,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-04-30 10:46:22,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:46:22,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2025-04-30 10:46:22,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:46:22,930 INFO L116 PetriNetUnfolderBase]: 97/367 cut-off events. [2025-04-30 10:46:22,931 INFO L117 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-04-30 10:46:22,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 367 events. 97/367 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2479 event pairs, 65 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 604. Up to 168 conditions per place. [2025-04-30 10:46:22,934 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 27 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2025-04-30 10:46:22,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 184 flow [2025-04-30 10:46:22,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:46:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:46:22,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2025-04-30 10:46:22,936 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6130952380952381 [2025-04-30 10:46:22,937 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 124 flow. Second operand 3 states and 103 transitions. [2025-04-30 10:46:22,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 184 flow [2025-04-30 10:46:22,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 53 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:46:22,939 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 124 flow [2025-04-30 10:46:22,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2025-04-30 10:46:22,941 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2025-04-30 10:46:22,941 INFO L485 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 124 flow [2025-04-30 10:46:22,941 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-04-30 10:46:22,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:46:22,941 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-04-30 10:46:22,941 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:46:22,942 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-04-30 10:46:22,943 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:46:22,944 INFO L85 PathProgramCache]: Analyzing trace with hash 355326895, now seen corresponding path program 1 times [2025-04-30 10:46:22,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:46:22,944 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567757130] [2025-04-30 10:46:22,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:46:22,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:46:22,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-30 10:46:22,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-30 10:46:22,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:22,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:46:23,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:46:23,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:46:23,123 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567757130] [2025-04-30 10:46:23,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567757130] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:46:23,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:46:23,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:46:23,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582748344] [2025-04-30 10:46:23,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:46:23,124 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:46:23,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:46:23,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:46:23,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:46:23,185 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 56 [2025-04-30 10:46:23,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2025-04-30 10:46:23,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:46:23,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 56 [2025-04-30 10:46:23,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:46:23,342 INFO L116 PetriNetUnfolderBase]: 184/694 cut-off events. [2025-04-30 10:46:23,342 INFO L117 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2025-04-30 10:46:23,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 694 events. 184/694 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5500 event pairs, 124 based on Foata normal form. 1/520 useless extension candidates. Maximal degree in co-relation 1169. Up to 215 conditions per place. [2025-04-30 10:46:23,345 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 47 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2025-04-30 10:46:23,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 298 flow [2025-04-30 10:46:23,347 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:46:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:46:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2025-04-30 10:46:23,349 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2025-04-30 10:46:23,349 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 124 flow. Second operand 4 states and 157 transitions. [2025-04-30 10:46:23,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 298 flow [2025-04-30 10:46:23,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:46:23,351 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 146 flow [2025-04-30 10:46:23,351 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2025-04-30 10:46:23,352 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2025-04-30 10:46:23,352 INFO L485 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 146 flow [2025-04-30 10:46:23,352 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2025-04-30 10:46:23,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:46:23,352 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:46:23,352 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:46:23,352 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-04-30 10:46:23,353 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:46:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash 620261267, now seen corresponding path program 1 times [2025-04-30 10:46:23,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:46:23,353 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26608698] [2025-04-30 10:46:23,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:46:23,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:46:23,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:46:23,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:46:23,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:23,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:46:23,368 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:46:23,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:46:23,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:46:23,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:23,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:46:23,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:46:23,388 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:46:23,389 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2025-04-30 10:46:23,390 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2025-04-30 10:46:23,391 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2025-04-30 10:46:23,392 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2025-04-30 10:46:23,392 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2025-04-30 10:46:23,392 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2025-04-30 10:46:23,393 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:46:23,393 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-30 10:46:23,421 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:46:23,421 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:46:23,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:46:23 BasicIcfg [2025-04-30 10:46:23,424 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:46:23,424 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:46:23,424 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:46:23,424 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:46:23,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:46:22" (3/4) ... [2025-04-30 10:46:23,427 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:46:23,427 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:46:23,428 INFO L158 Benchmark]: Toolchain (without parser) took 2355.39ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 89.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2025-04-30 10:46:23,428 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:46:23,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 666.94ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 66.3MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-04-30 10:46:23,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.52ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 64.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:46:23,429 INFO L158 Benchmark]: Boogie Preprocessor took 37.87ms. Allocated memory is still 142.6MB. Free memory was 64.1MB in the beginning and 62.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:46:23,429 INFO L158 Benchmark]: RCFGBuilder took 426.44ms. Allocated memory is still 142.6MB. Free memory was 62.1MB in the beginning and 101.0MB in the end (delta: -39.0MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2025-04-30 10:46:23,429 INFO L158 Benchmark]: TraceAbstraction took 1181.96ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 89.9MB in the end (delta: 10.4MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2025-04-30 10:46:23,430 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 142.6MB. Free memory was 89.9MB in the beginning and 89.8MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:46:23,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 666.94ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 66.3MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.52ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 64.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.87ms. Allocated memory is still 142.6MB. Free memory was 64.1MB in the beginning and 62.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 426.44ms. Allocated memory is still 142.6MB. Free memory was 62.1MB in the beginning and 101.0MB in the end (delta: -39.0MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1181.96ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 89.9MB in the end (delta: 10.4MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 142.6MB. Free memory was 89.9MB in the beginning and 89.8MB in the end (delta: 24.0kB). 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 1246, overapproximation of sscanf at line 1245. Possible FailurePath: [L1229] static int iSet = 4; [L1230] static int iCheck = 1; [L1231] static int a = 0; [L1232] static int b = 0; [L1239] int i, err; VAL [\at(argc, Pre)=3, \at(argv, Pre)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1240] COND TRUE argc != 1 VAL [\at(argc, Pre)=3, \at(argv, Pre)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1241] COND FALSE !(argc != 3) VAL [\at(argc, Pre)=3, \at(argv, Pre)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1245] argv[1] [L1246] argv[2] [L1249] pthread_t setPool[iSet]; [L1250] pthread_t checkPool[iCheck]; [L1251] i = 0 VAL [\at(argc, Pre)=3, \at(argv, Pre)={1073741825:1073741826}, a=0, argc=3, b=0, checkPool={4:0}, i=0, iCheck=0, iSet=1073741824, setPool={5:0}] [L1251] COND TRUE i < iSet - UnprovableResult [Line: 11]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1245]: 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: 1246]: 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: 1238]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1258]: 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: 1252]: 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, 63 locations, 72 edges, 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 287 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 15 mSDtfsCounter, 287 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=146occurred 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, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-30 10:46:23,444 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/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread/reorder_5-2.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 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:46:25,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:46:25,360 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-04-30 10:46:25,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:46:25,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:46:25,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:46:25,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:46:25,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:46:25,390 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:46:25,390 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:46:25,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:46:25,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:46:25,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:46:25,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:46:25,392 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:46:25,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:46:25,392 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:46:25,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:46:25,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:46:25,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:46:25,392 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:46:25,393 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:46:25,393 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:46:25,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:46:25,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:46:25,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:46:25,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:46:25,395 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 [2025-04-30 10:46:25,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:46:25,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:46:25,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:46:25,643 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:46:25,645 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:46:25,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/reorder_5-2.i [2025-04-30 10:46:26,932 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99d4d607a/759e675c8d8e43bf988adde87a5c3879/FLAGa62179adc [2025-04-30 10:46:27,157 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:46:27,160 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/reorder_5-2.i [2025-04-30 10:46:27,176 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99d4d607a/759e675c8d8e43bf988adde87a5c3879/FLAGa62179adc [2025-04-30 10:46:27,982 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99d4d607a/759e675c8d8e43bf988adde87a5c3879 [2025-04-30 10:46:27,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:46:27,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:46:27,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:46:27,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:46:27,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:46:27,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:46:27" (1/1) ... [2025-04-30 10:46:27,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c37393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:27, skipping insertion in model container [2025-04-30 10:46:27,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:46:27" (1/1) ... [2025-04-30 10:46:28,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:46:28,373 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:46:28,384 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:46:28,466 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:46:28,526 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:46:28,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28 WrapperNode [2025-04-30 10:46:28,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:46:28,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:46:28,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:46:28,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:46:28,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,566 INFO L138 Inliner]: procedures = 374, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2025-04-30 10:46:28,568 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:46:28,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:46:28,569 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:46:28,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:46:28,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,592 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]. [2025-04-30 10:46:28,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,607 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:46:28,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:46:28,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:46:28,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:46:28,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (1/1) ... [2025-04-30 10:46:28,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:46:28,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:46:28,658 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) [2025-04-30 10:46:28,660 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 [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-04-30 10:46:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-04-30 10:46:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-04-30 10:46:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-04-30 10:46:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-30 10:46:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2025-04-30 10:46:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2025-04-30 10:46:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:46:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2025-04-30 10:46:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2025-04-30 10:46:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:46:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:46:28,682 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:46:28,845 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:46:28,846 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:46:29,105 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:46:29,105 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:46:29,203 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:46:29,204 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:46:29,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:46:29 BoogieIcfgContainer [2025-04-30 10:46:29,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:46:29,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:46:29,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:46:29,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:46:29,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:46:27" (1/3) ... [2025-04-30 10:46:29,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebff988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:46:29, skipping insertion in model container [2025-04-30 10:46:29,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:46:28" (2/3) ... [2025-04-30 10:46:29,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebff988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:46:29, skipping insertion in model container [2025-04-30 10:46:29,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:46:29" (3/3) ... [2025-04-30 10:46:29,210 INFO L128 eAbstractionObserver]: Analyzing ICFG reorder_5-2.i [2025-04-30 10:46:29,218 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:46:29,219 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_5-2.i that has 3 procedures, 48 locations, 52 edges, 1 initial locations, 4 loop locations, and 12 error locations. [2025-04-30 10:46:29,219 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:46:29,268 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-30 10:46:29,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 56 transitions, 132 flow [2025-04-30 10:46:29,335 INFO L116 PetriNetUnfolderBase]: 12/131 cut-off events. [2025-04-30 10:46:29,337 INFO L117 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-04-30 10:46:29,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 12/131 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 633 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2025-04-30 10:46:29,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 56 transitions, 132 flow [2025-04-30 10:46:29,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 56 transitions, 132 flow [2025-04-30 10:46:29,349 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:46:29,356 INFO L340 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;@5b2117bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:46:29,356 INFO L341 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-04-30 10:46:29,359 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:46:29,359 INFO L116 PetriNetUnfolderBase]: 1/6 cut-off events. [2025-04-30 10:46:29,359 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:46:29,359 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:46:29,360 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-04-30 10:46:29,362 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-04-30 10:46:29,366 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:46:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash 11398279, now seen corresponding path program 1 times [2025-04-30 10:46:29,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:46:29,372 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967601516] [2025-04-30 10:46:29,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:46:29,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:46:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:46:29,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:46:29,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-30 10:46:29,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-30 10:46:29,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-30 10:46:29,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:29,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:46:29,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-04-30 10:46:29,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:46:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:46:29,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:46:29,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-30 10:46:29,475 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967601516] [2025-04-30 10:46:29,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967601516] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:46:29,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:46:29,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-30 10:46:29,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273215861] [2025-04-30 10:46:29,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:46:29,483 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-30 10:46:29,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-30 10:46:29,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-30 10:46:29,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:46:29,500 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2025-04-30 10:46:29,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2025-04-30 10:46:29,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:46:29,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2025-04-30 10:46:29,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:46:29,586 INFO L116 PetriNetUnfolderBase]: 86/374 cut-off events. [2025-04-30 10:46:29,586 INFO L117 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2025-04-30 10:46:29,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 374 events. 86/374 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2543 event pairs, 71 based on Foata normal form. 24/272 useless extension candidates. Maximal degree in co-relation 373. Up to 190 conditions per place. [2025-04-30 10:46:29,589 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 24 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2025-04-30 10:46:29,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 172 flow [2025-04-30 10:46:29,590 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-30 10:46:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-30 10:46:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2025-04-30 10:46:29,598 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-04-30 10:46:29,599 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 132 flow. Second operand 2 states and 84 transitions. [2025-04-30 10:46:29,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 172 flow [2025-04-30 10:46:29,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:46:29,604 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 124 flow [2025-04-30 10:46:29,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2025-04-30 10:46:29,607 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2025-04-30 10:46:29,607 INFO L485 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 124 flow [2025-04-30 10:46:29,608 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2025-04-30 10:46:29,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:46:29,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-04-30 10:46:29,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-30 10:46:29,812 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:46:29,812 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-04-30 10:46:29,813 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:46:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash 353418284, now seen corresponding path program 1 times [2025-04-30 10:46:29,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:46:29,813 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681450063] [2025-04-30 10:46:29,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:46:29,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:46:29,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:46:29,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:46:29,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-30 10:46:29,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-30 10:46:29,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-30 10:46:29,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:29,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:46:29,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-30 10:46:29,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:46:29,935 INFO L325 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2025-04-30 10:46:29,935 INFO L354 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 [2025-04-30 10:46:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:46:29,951 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:46:29,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-30 10:46:29,951 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681450063] [2025-04-30 10:46:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681450063] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:46:29,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:46:29,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:46:29,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783372184] [2025-04-30 10:46:29,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:46:29,952 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:46:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-30 10:46:29,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:46:29,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:46:29,992 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2025-04-30 10:46:29,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-04-30 10:46:29,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:46:29,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2025-04-30 10:46:29,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:46:30,111 INFO L116 PetriNetUnfolderBase]: 97/370 cut-off events. [2025-04-30 10:46:30,112 INFO L117 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-04-30 10:46:30,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 370 events. 97/370 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2506 event pairs, 62 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 607. Up to 168 conditions per place. [2025-04-30 10:46:30,114 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 27 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2025-04-30 10:46:30,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 184 flow [2025-04-30 10:46:30,116 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:46:30,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:46:30,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2025-04-30 10:46:30,117 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6130952380952381 [2025-04-30 10:46:30,117 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 124 flow. Second operand 3 states and 103 transitions. [2025-04-30 10:46:30,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 184 flow [2025-04-30 10:46:30,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 53 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:46:30,119 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 124 flow [2025-04-30 10:46:30,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2025-04-30 10:46:30,119 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2025-04-30 10:46:30,119 INFO L485 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 124 flow [2025-04-30 10:46:30,120 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-04-30 10:46:30,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:46:30,121 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-04-30 10:46:30,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-30 10:46:30,325 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:46:30,325 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-04-30 10:46:30,326 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:46:30,326 INFO L85 PathProgramCache]: Analyzing trace with hash 353418285, now seen corresponding path program 1 times [2025-04-30 10:46:30,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:46:30,327 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1808110899] [2025-04-30 10:46:30,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:46:30,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:46:30,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:46:30,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:46:30,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-30 10:46:30,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-30 10:46:30,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-30 10:46:30,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:30,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:46:30,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-30 10:46:30,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:46:30,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-30 10:46:30,421 INFO L354 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 [2025-04-30 10:46:30,424 INFO L354 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 [2025-04-30 10:46:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:46:30,447 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:46:30,447 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-30 10:46:30,447 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808110899] [2025-04-30 10:46:30,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808110899] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:46:30,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:46:30,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:46:30,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056952419] [2025-04-30 10:46:30,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:46:30,448 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:46:30,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-30 10:46:30,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:46:30,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:46:30,501 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 56 [2025-04-30 10:46:30,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:46:30,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:46:30,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 56 [2025-04-30 10:46:30,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:46:30,643 INFO L116 PetriNetUnfolderBase]: 184/694 cut-off events. [2025-04-30 10:46:30,643 INFO L117 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2025-04-30 10:46:30,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 694 events. 184/694 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5515 event pairs, 159 based on Foata normal form. 1/520 useless extension candidates. Maximal degree in co-relation 1169. Up to 215 conditions per place. [2025-04-30 10:46:30,647 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 47 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2025-04-30 10:46:30,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 298 flow [2025-04-30 10:46:30,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:46:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:46:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2025-04-30 10:46:30,648 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2025-04-30 10:46:30,648 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 124 flow. Second operand 4 states and 157 transitions. [2025-04-30 10:46:30,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 298 flow [2025-04-30 10:46:30,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:46:30,651 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 146 flow [2025-04-30 10:46:30,651 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2025-04-30 10:46:30,651 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2025-04-30 10:46:30,651 INFO L485 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 146 flow [2025-04-30 10:46:30,652 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:46:30,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:46:30,652 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:46:30,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-30 10:46:30,852 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:46:30,852 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-04-30 10:46:30,853 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:46:30,853 INFO L85 PathProgramCache]: Analyzing trace with hash -404566381, now seen corresponding path program 1 times [2025-04-30 10:46:30,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:46:30,853 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080170525] [2025-04-30 10:46:30,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:46:30,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:46:30,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:46:30,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:46:30,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-30 10:46:30,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:46:30,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:46:30,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:30,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:46:30,925 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:46:30,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:46:30,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:46:30,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:46:30,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:46:30,950 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-30 10:46:30,950 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:46:30,951 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2025-04-30 10:46:30,952 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2025-04-30 10:46:30,953 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2025-04-30 10:46:30,953 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2025-04-30 10:46:30,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-30 10:46:31,153 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:46:31,153 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-30 10:46:31,175 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:46:31,176 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:46:31,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:46:31 BasicIcfg [2025-04-30 10:46:31,180 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:46:31,181 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:46:31,181 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:46:31,184 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:46:31,184 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:46:29" (3/4) ... [2025-04-30 10:46:31,186 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:46:31,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:46:31,188 INFO L158 Benchmark]: Toolchain (without parser) took 3202.22ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 79.7MB in the end (delta: 9.5MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2025-04-30 10:46:31,188 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:46:31,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.00ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 46.6MB in the end (delta: 42.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:46:31,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.66ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 43.5MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:46:31,191 INFO L158 Benchmark]: Boogie Preprocessor took 58.93ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 40.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:46:31,191 INFO L158 Benchmark]: RCFGBuilder took 575.96ms. Allocated memory is still 117.4MB. Free memory was 40.9MB in the beginning and 56.8MB in the end (delta: -16.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2025-04-30 10:46:31,191 INFO L158 Benchmark]: TraceAbstraction took 1975.20ms. Allocated memory is still 117.4MB. Free memory was 56.1MB in the beginning and 79.7MB in the end (delta: -23.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:46:31,191 INFO L158 Benchmark]: Witness Printer took 6.06ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 79.7MB in the end (delta: 8.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:46:31,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 541.00ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 46.6MB in the end (delta: 42.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.66ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 43.5MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.93ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 40.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 575.96ms. Allocated memory is still 117.4MB. Free memory was 40.9MB in the beginning and 56.8MB in the end (delta: -16.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1975.20ms. Allocated memory is still 117.4MB. Free memory was 56.1MB in the beginning and 79.7MB in the end (delta: -23.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.06ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 79.7MB in the end (delta: 8.4kB). 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 1246, overapproximation of sscanf at line 1245. Possible FailurePath: [L1229] static int iSet = 4; [L1230] static int iCheck = 1; [L1231] static int a = 0; [L1232] static int b = 0; [L1239] int i, err; VAL [\at(argc, Pre)=3, \at(argv, Pre)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1240] COND TRUE argc != 1 VAL [\at(argc, Pre)=3, \at(argv, Pre)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1241] COND FALSE !(argc != 3) VAL [\at(argc, Pre)=3, \at(argv, Pre)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1245] argv[1] [L1246] argv[2] [L1249] pthread_t setPool[iSet]; [L1250] pthread_t checkPool[iCheck]; [L1251] i = 0 VAL [\at(argc, Pre)=3, \at(argv, Pre)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=0, iSet=1073741824, setPool={7:0}] [L1251] COND TRUE i < iSet - UnprovableResult [Line: 11]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1245]: 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: 1246]: 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: 1238]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1252]: 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: 1258]: 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, 63 locations, 72 edges, 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: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 11 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred 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, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 3 NumberOfNonLiveVariables, 109 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-30 10:46:31,208 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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample