./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-easy6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/weaver/test-easy6.wvr.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/test-easy6.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:39:27,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:39:27,989 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:39:27,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:39:27,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:39:28,016 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:39:28,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:39:28,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:39:28,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:39:28,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:39:28,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:39:28,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:39:28,017 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:39:28,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:39:28,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:39:28,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:39:28,018 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-jdk21/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 -> ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284 [2024-11-07 19:39:28,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:39:28,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:39:28,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:39:28,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:39:28,219 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:39:28,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy6.wvr.c [2024-11-07 19:39:29,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:39:29,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:39:29,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/test-easy6.wvr.c [2024-11-07 19:39:29,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a4385220c/e4f73426dc8146f19991e73754880be1/FLAGe2e62279e [2024-11-07 19:39:29,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a4385220c/e4f73426dc8146f19991e73754880be1 [2024-11-07 19:39:29,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:39:29,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:39:29,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:39:29,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:39:29,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:39:29,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:39:29" (1/1) ... [2024-11-07 19:39:29,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f480ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:29, skipping insertion in model container [2024-11-07 19:39:29,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:39:29" (1/1) ... [2024-11-07 19:39:29,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:39:29,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:39:29,978 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:39:29,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:39:30,001 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:39:30,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30 WrapperNode [2024-11-07 19:39:30,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:39:30,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:39:30,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:39:30,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:39:30,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,022 INFO L138 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-07 19:39:30,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:39:30,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:39:30,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:39:30,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:39:30,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,042 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 19:39:30,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:39:30,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:39:30,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:39:30,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:39:30,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (1/1) ... [2024-11-07 19:39:30,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:39:30,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:30,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 19:39:30,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 19:39:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:39:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:39:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:39:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:39:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:39:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:39:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:39:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:39:30,098 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 19:39:30,159 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:39:30,160 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:39:30,271 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:39:30,271 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:39:30,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:39:30,341 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 19:39:30,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:30 BoogieIcfgContainer [2024-11-07 19:39:30,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:39:30,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:39:30,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:39:30,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:39:30,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:39:29" (1/3) ... [2024-11-07 19:39:30,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faab420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:39:30, skipping insertion in model container [2024-11-07 19:39:30,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:30" (2/3) ... [2024-11-07 19:39:30,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faab420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:39:30, skipping insertion in model container [2024-11-07 19:39:30,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:30" (3/3) ... [2024-11-07 19:39:30,348 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2024-11-07 19:39:30,357 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:39:30,358 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:39:30,358 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:39:30,391 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:39:30,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 34 transitions, 82 flow [2024-11-07 19:39:30,436 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-11-07 19:39:30,438 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:39:30,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 0/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-07 19:39:30,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 34 transitions, 82 flow [2024-11-07 19:39:30,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 31 transitions, 74 flow [2024-11-07 19:39:30,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:39:30,464 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48b565db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:39:30,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:39:30,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:39:30,474 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-07 19:39:30,474 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:39:30,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:30,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:30,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:30,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:30,478 INFO L85 PathProgramCache]: Analyzing trace with hash 767302104, now seen corresponding path program 1 times [2024-11-07 19:39:30,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:30,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623774218] [2024-11-07 19:39:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:30,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:30,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:30,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:30,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623774218] [2024-11-07 19:39:30,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623774218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:30,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:30,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:39:30,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678723390] [2024-11-07 19:39:30,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:30,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:39:30,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:30,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:39:30,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:39:30,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 34 [2024-11-07 19:39:30,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:30,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:30,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 34 [2024-11-07 19:39:30,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:31,014 INFO L124 PetriNetUnfolderBase]: 92/254 cut-off events. [2024-11-07 19:39:31,017 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-07 19:39:31,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 254 events. 92/254 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1178 event pairs, 20 based on Foata normal form. 4/249 useless extension candidates. Maximal degree in co-relation 405. Up to 55 conditions per place. [2024-11-07 19:39:31,021 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 28 selfloop transitions, 6 changer transitions 13/60 dead transitions. [2024-11-07 19:39:31,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 60 transitions, 250 flow [2024-11-07 19:39:31,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:39:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:39:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2024-11-07 19:39:31,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6848739495798319 [2024-11-07 19:39:31,038 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 74 flow. Second operand 7 states and 163 transitions. [2024-11-07 19:39:31,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 60 transitions, 250 flow [2024-11-07 19:39:31,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 60 transitions, 226 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:31,044 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 97 flow [2024-11-07 19:39:31,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=97, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-11-07 19:39:31,049 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-11-07 19:39:31,049 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 97 flow [2024-11-07 19:39:31,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:31,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:31,050 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:31,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:39:31,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:31,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1096940356, now seen corresponding path program 2 times [2024-11-07 19:39:31,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722551381] [2024-11-07 19:39:31,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:31,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722551381] [2024-11-07 19:39:31,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722551381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:31,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:31,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:39:31,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145409602] [2024-11-07 19:39:31,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:39:31,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:39:31,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:39:31,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:39:31,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 97 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:31,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:39:31,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:31,333 INFO L124 PetriNetUnfolderBase]: 229/581 cut-off events. [2024-11-07 19:39:31,333 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-07 19:39:31,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 581 events. 229/581 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3155 event pairs, 51 based on Foata normal form. 4/574 useless extension candidates. Maximal degree in co-relation 1125. Up to 143 conditions per place. [2024-11-07 19:39:31,336 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 37 selfloop transitions, 11 changer transitions 10/73 dead transitions. [2024-11-07 19:39:31,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 73 transitions, 300 flow [2024-11-07 19:39:31,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2024-11-07 19:39:31,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6045751633986928 [2024-11-07 19:39:31,338 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 97 flow. Second operand 9 states and 185 transitions. [2024-11-07 19:39:31,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 73 transitions, 300 flow [2024-11-07 19:39:31,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 296 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:31,340 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 169 flow [2024-11-07 19:39:31,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=169, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-11-07 19:39:31,341 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2024-11-07 19:39:31,341 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 169 flow [2024-11-07 19:39:31,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:31,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:31,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:31,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:39:31,341 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:31,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1040410760, now seen corresponding path program 3 times [2024-11-07 19:39:31,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370280239] [2024-11-07 19:39:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:31,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370280239] [2024-11-07 19:39:31,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370280239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:31,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:31,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:39:31,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382980965] [2024-11-07 19:39:31,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:39:31,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:39:31,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:39:31,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 34 [2024-11-07 19:39:31,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:31,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 34 [2024-11-07 19:39:31,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:31,464 INFO L124 PetriNetUnfolderBase]: 111/400 cut-off events. [2024-11-07 19:39:31,464 INFO L125 PetriNetUnfolderBase]: For 187/191 co-relation queries the response was YES. [2024-11-07 19:39:31,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 400 events. 111/400 cut-off events. For 187/191 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2350 event pairs, 88 based on Foata normal form. 9/382 useless extension candidates. Maximal degree in co-relation 757. Up to 215 conditions per place. [2024-11-07 19:39:31,469 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 16 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2024-11-07 19:39:31,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 214 flow [2024-11-07 19:39:31,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:39:31,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:39:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-07 19:39:31,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-11-07 19:39:31,472 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 169 flow. Second operand 3 states and 73 transitions. [2024-11-07 19:39:31,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 214 flow [2024-11-07 19:39:31,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 212 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:31,478 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 175 flow [2024-11-07 19:39:31,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-11-07 19:39:31,479 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2024-11-07 19:39:31,480 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 175 flow [2024-11-07 19:39:31,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:31,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:31,480 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:31,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:39:31,481 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:31,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1950603516, now seen corresponding path program 4 times [2024-11-07 19:39:31,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058556899] [2024-11-07 19:39:31,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:31,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058556899] [2024-11-07 19:39:31,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058556899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:31,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:31,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:39:31,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350138414] [2024-11-07 19:39:31,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:39:31,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:39:31,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:39:31,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 34 [2024-11-07 19:39:31,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 175 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:31,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 34 [2024-11-07 19:39:31,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:31,765 INFO L124 PetriNetUnfolderBase]: 180/473 cut-off events. [2024-11-07 19:39:31,765 INFO L125 PetriNetUnfolderBase]: For 284/290 co-relation queries the response was YES. [2024-11-07 19:39:31,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 473 events. 180/473 cut-off events. For 284/290 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2609 event pairs, 49 based on Foata normal form. 8/462 useless extension candidates. Maximal degree in co-relation 549. Up to 114 conditions per place. [2024-11-07 19:39:31,767 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 20 selfloop transitions, 5 changer transitions 13/59 dead transitions. [2024-11-07 19:39:31,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 296 flow [2024-11-07 19:39:31,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:39:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:39:31,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 151 transitions. [2024-11-07 19:39:31,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.634453781512605 [2024-11-07 19:39:31,769 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 175 flow. Second operand 7 states and 151 transitions. [2024-11-07 19:39:31,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 296 flow [2024-11-07 19:39:31,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:39:31,773 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 174 flow [2024-11-07 19:39:31,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-07 19:39:31,774 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2024-11-07 19:39:31,774 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 174 flow [2024-11-07 19:39:31,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:31,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:31,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:31,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:39:31,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:31,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1407211470, now seen corresponding path program 5 times [2024-11-07 19:39:31,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791656111] [2024-11-07 19:39:31,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:31,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791656111] [2024-11-07 19:39:31,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791656111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:31,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:31,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:39:31,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038488337] [2024-11-07 19:39:31,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:39:31,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:39:31,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:39:31,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:39:31,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:31,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:39:31,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,071 INFO L124 PetriNetUnfolderBase]: 194/514 cut-off events. [2024-11-07 19:39:32,072 INFO L125 PetriNetUnfolderBase]: For 498/519 co-relation queries the response was YES. [2024-11-07 19:39:32,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 514 events. 194/514 cut-off events. For 498/519 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2697 event pairs, 62 based on Foata normal form. 25/528 useless extension candidates. Maximal degree in co-relation 1324. Up to 146 conditions per place. [2024-11-07 19:39:32,075 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 37 selfloop transitions, 8 changer transitions 10/68 dead transitions. [2024-11-07 19:39:32,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 370 flow [2024-11-07 19:39:32,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:39:32,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:39:32,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2024-11-07 19:39:32,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6176470588235294 [2024-11-07 19:39:32,076 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 174 flow. Second operand 8 states and 168 transitions. [2024-11-07 19:39:32,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 370 flow [2024-11-07 19:39:32,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 68 transitions, 353 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:32,079 INFO L231 Difference]: Finished difference. Result has 57 places, 37 transitions, 167 flow [2024-11-07 19:39:32,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=57, PETRI_TRANSITIONS=37} [2024-11-07 19:39:32,080 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2024-11-07 19:39:32,080 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 37 transitions, 167 flow [2024-11-07 19:39:32,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:32,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:32,080 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:32,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 19:39:32,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:32,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash 592478148, now seen corresponding path program 6 times [2024-11-07 19:39:32,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:32,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359080148] [2024-11-07 19:39:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:32,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:32,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:32,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359080148] [2024-11-07 19:39:32,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359080148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:32,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:32,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:39:32,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036863015] [2024-11-07 19:39:32,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:32,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:39:32,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:32,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:39:32,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:39:32,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 34 [2024-11-07 19:39:32,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 37 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:32,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:32,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 34 [2024-11-07 19:39:32,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,184 INFO L124 PetriNetUnfolderBase]: 72/282 cut-off events. [2024-11-07 19:39:32,185 INFO L125 PetriNetUnfolderBase]: For 236/240 co-relation queries the response was YES. [2024-11-07 19:39:32,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 282 events. 72/282 cut-off events. For 236/240 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1525 event pairs, 71 based on Foata normal form. 8/266 useless extension candidates. Maximal degree in co-relation 410. Up to 175 conditions per place. [2024-11-07 19:39:32,186 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 13 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2024-11-07 19:39:32,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 38 transitions, 199 flow [2024-11-07 19:39:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:39:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:39:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-07 19:39:32,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6862745098039216 [2024-11-07 19:39:32,187 INFO L175 Difference]: Start difference. First operand has 57 places, 37 transitions, 167 flow. Second operand 3 states and 70 transitions. [2024-11-07 19:39:32,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 38 transitions, 199 flow [2024-11-07 19:39:32,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 38 transitions, 176 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:32,189 INFO L231 Difference]: Finished difference. Result has 52 places, 37 transitions, 152 flow [2024-11-07 19:39:32,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=52, PETRI_TRANSITIONS=37} [2024-11-07 19:39:32,190 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2024-11-07 19:39:32,191 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 37 transitions, 152 flow [2024-11-07 19:39:32,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:32,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:32,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:32,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 19:39:32,191 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:32,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:32,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1681327840, now seen corresponding path program 7 times [2024-11-07 19:39:32,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:32,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388700569] [2024-11-07 19:39:32,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:32,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:32,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:32,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388700569] [2024-11-07 19:39:32,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388700569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:32,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:32,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:39:32,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960798437] [2024-11-07 19:39:32,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:32,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:39:32,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:32,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:39:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:39:32,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:39:32,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 37 transitions, 152 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:32,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:32,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:39:32,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,411 INFO L124 PetriNetUnfolderBase]: 94/255 cut-off events. [2024-11-07 19:39:32,411 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2024-11-07 19:39:32,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 255 events. 94/255 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1025 event pairs, 40 based on Foata normal form. 4/250 useless extension candidates. Maximal degree in co-relation 438. Up to 146 conditions per place. [2024-11-07 19:39:32,412 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 18 selfloop transitions, 3 changer transitions 11/45 dead transitions. [2024-11-07 19:39:32,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 45 transitions, 234 flow [2024-11-07 19:39:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:32,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2024-11-07 19:39:32,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5735294117647058 [2024-11-07 19:39:32,414 INFO L175 Difference]: Start difference. First operand has 52 places, 37 transitions, 152 flow. Second operand 6 states and 117 transitions. [2024-11-07 19:39:32,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 45 transitions, 234 flow [2024-11-07 19:39:32,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 45 transitions, 228 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-07 19:39:32,415 INFO L231 Difference]: Finished difference. Result has 54 places, 31 transitions, 121 flow [2024-11-07 19:39:32,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=121, PETRI_PLACES=54, PETRI_TRANSITIONS=31} [2024-11-07 19:39:32,415 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-11-07 19:39:32,415 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 31 transitions, 121 flow [2024-11-07 19:39:32,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:32,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:32,416 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:32,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:39:32,416 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:32,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:32,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1774861624, now seen corresponding path program 8 times [2024-11-07 19:39:32,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:32,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47822463] [2024-11-07 19:39:32,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:32,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:32,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:32,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47822463] [2024-11-07 19:39:32,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47822463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:32,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:32,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:39:32,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523387302] [2024-11-07 19:39:32,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:32,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:39:32,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:32,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:39:32,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:39:32,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:39:32,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 31 transitions, 121 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:32,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:32,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:39:32,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,566 INFO L124 PetriNetUnfolderBase]: 21/68 cut-off events. [2024-11-07 19:39:32,566 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-07 19:39:32,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 68 events. 21/68 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 5 based on Foata normal form. 4/71 useless extension candidates. Maximal degree in co-relation 188. Up to 18 conditions per place. [2024-11-07 19:39:32,567 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-11-07 19:39:32,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 29 transitions, 152 flow [2024-11-07 19:39:32,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:39:32,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:39:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2024-11-07 19:39:32,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5042016806722689 [2024-11-07 19:39:32,568 INFO L175 Difference]: Start difference. First operand has 54 places, 31 transitions, 121 flow. Second operand 7 states and 120 transitions. [2024-11-07 19:39:32,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 29 transitions, 152 flow [2024-11-07 19:39:32,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 29 transitions, 121 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-07 19:39:32,569 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2024-11-07 19:39:32,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2024-11-07 19:39:32,570 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2024-11-07 19:39:32,571 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2024-11-07 19:39:32,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:32,573 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-07 19:39:32,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-07 19:39:32,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-07 19:39:32,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-07 19:39:32,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 19:39:32,575 INFO L407 BasicCegarLoop]: Path program histogram: [8] [2024-11-07 19:39:32,579 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 19:39:32,579 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 19:39:32,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:39:32 BasicIcfg [2024-11-07 19:39:32,583 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 19:39:32,584 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 19:39:32,584 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 19:39:32,584 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 19:39:32,586 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:30" (3/4) ... [2024-11-07 19:39:32,588 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 19:39:32,590 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 19:39:32,590 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 19:39:32,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-07 19:39:32,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-07 19:39:32,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-07 19:39:32,594 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-07 19:39:32,642 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 19:39:32,643 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 19:39:32,643 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 19:39:32,644 INFO L158 Benchmark]: Toolchain (without parser) took 2778.03ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 92.3MB in the beginning and 103.8MB in the end (delta: -11.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2024-11-07 19:39:32,644 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:39:32,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 136.15ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 81.0MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:39:32,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.81ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:39:32,645 INFO L158 Benchmark]: Boogie Preprocessor took 26.46ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:39:32,645 INFO L158 Benchmark]: RCFGBuilder took 291.47ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 56.7MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 19:39:32,645 INFO L158 Benchmark]: TraceAbstraction took 2240.89ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 56.2MB in the beginning and 107.5MB in the end (delta: -51.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:39:32,646 INFO L158 Benchmark]: Witness Printer took 58.60ms. Allocated memory is still 159.4MB. Free memory was 107.5MB in the beginning and 103.8MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:39:32,647 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 136.15ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 81.0MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.81ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.46ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 291.47ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 56.7MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2240.89ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 56.2MB in the beginning and 107.5MB in the end (delta: -51.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.60ms. Allocated memory is still 159.4MB. Free memory was 107.5MB in the beginning and 103.8MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 70]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 305 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 289 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 788 IncrementalHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 23 mSDtfsCounter, 788 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=3, InterpolantAutomatonStates: 50, 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, 0.8s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 19:39:32,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE