./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-optional-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (memcleanup)
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/forester-heap/dll-optional-2.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546']
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/forester-heap/dll-optional-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 15:53:59,119 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 15:53:59,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf
[2024-11-07 15:53:59,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 15:53:59,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 15:53:59,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 15:53:59,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 15:53:59,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 15:53:59,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 15:53:59,270 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 15:53:59,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 15:53:59,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 15:53:59,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 15:53:59,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 15:53:59,271 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 15:53:59,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 15:53:59,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 15:53:59,271 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 15:53:59,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 15:53:59,271 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 15:53:59,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 15:53:59,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 15:53:59,272 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-07 15:53:59,272 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-07 15:53:59,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 15:53:59,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 15:53:59,272 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-07 15:53:59,272 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 15:53:59,274 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 15:53:59,274 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 15:53:59,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 15:53:59,274 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 15:53:59,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 15:53:59,275 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 15:53:59,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 15:53:59,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 15:53:59,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 15:53:59,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 15:53:59,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 15:53:59,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 15:53:59,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 15:53:59,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 15:53:59,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 15:53:59,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 15:53:59,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 15:53:59,277 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-memcleanup) )
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 -> 8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546
[2024-11-07 15:53:59,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 15:53:59,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 15:53:59,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 15:53:59,615 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 15:53:59,616 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 15:53:59,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-optional-2.i
[2024-11-07 15:54:00,920 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 15:54:01,167 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 15:54:01,168 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-optional-2.i
[2024-11-07 15:54:01,177 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/26140e67f/95d14faa871847bbae8e61ff1f1b5bda/FLAG80d78e7d2
[2024-11-07 15:54:01,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/26140e67f/95d14faa871847bbae8e61ff1f1b5bda
[2024-11-07 15:54:01,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 15:54:01,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 15:54:01,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 15:54:01,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 15:54:01,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 15:54:01,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14692000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01, skipping insertion in model container
[2024-11-07 15:54:01,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,227 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 15:54:01,438 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 15:54:01,445 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 15:54:01,501 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 15:54:01,530 INFO L204 MainTranslator]: Completed translation
[2024-11-07 15:54:01,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01 WrapperNode
[2024-11-07 15:54:01,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 15:54:01,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 15:54:01,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 15:54:01,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 15:54:01,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,588 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 120
[2024-11-07 15:54:01,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 15:54:01,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 15:54:01,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 15:54:01,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 15:54:01,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,622 INFO L175 MemorySlicer]: Split 31 memory accesses to 2 slices as follows [2, 29]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 19 writes are split as follows [0, 19].
[2024-11-07 15:54:01,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 15:54:01,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 15:54:01,651 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 15:54:01,651 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 15:54:01,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (1/1) ...
[2024-11-07 15:54:01,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 15:54:01,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 15:54:01,688 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 15:54:01,693 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 15:54:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-07 15:54:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-07 15:54:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-07 15:54:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-07 15:54:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-07 15:54:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 15:54:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-07 15:54:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-07 15:54:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-07 15:54:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-07 15:54:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-07 15:54:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 15:54:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 15:54:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 15:54:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 15:54:01,846 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 15:54:01,848 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 15:54:02,123 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live.
[2024-11-07 15:54:02,123 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 15:54:02,133 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 15:54:02,134 INFO L316 CfgBuilder]: Removed 5 assume(true) statements.
[2024-11-07 15:54:02,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:02 BoogieIcfgContainer
[2024-11-07 15:54:02,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 15:54:02,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 15:54:02,138 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 15:54:02,157 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 15:54:02,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:54:01" (1/3) ...
[2024-11-07 15:54:02,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f5eac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:02, skipping insertion in model container
[2024-11-07 15:54:02,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:01" (2/3) ...
[2024-11-07 15:54:02,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f5eac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:02, skipping insertion in model container
[2024-11-07 15:54:02,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:02" (3/3) ...
[2024-11-07 15:54:02,160 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-optional-2.i
[2024-11-07 15:54:02,175 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 15:54:02,176 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 15:54:02,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 15:54:02,232 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;@6fc217ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 15:54:02,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-07 15:54:02,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 28 states have internal predecessors, (44), 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 15:54:02,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-07 15:54:02,244 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 15:54:02,244 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 15:54:02,245 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-07 15:54:02,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 15:54:02,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1886947737, now seen corresponding path program 1 times
[2024-11-07 15:54:02,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 15:54:02,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884988646]
[2024-11-07 15:54:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 15:54:02,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 15:54:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 15:54:02,461 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 15:54:02,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 15:54:02,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884988646]
[2024-11-07 15:54:02,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884988646] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 15:54:02,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 15:54:02,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 15:54:02,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559277213]
[2024-11-07 15:54:02,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 15:54:02,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-07 15:54:02,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 15:54:02,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-07 15:54:02,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-07 15:54:02,505 INFO L87 Difference]: Start difference. First operand has 29 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 28 states have internal predecessors, (44), 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15:54:02,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 15:54:02,516 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions.
[2024-11-07 15:54:02,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-07 15:54:02,518 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) Word has length 11
[2024-11-07 15:54:02,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 15:54:02,522 INFO L225 Difference]: With dead ends: 28
[2024-11-07 15:54:02,523 INFO L226 Difference]: Without dead ends: 26
[2024-11-07 15:54:02,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-07 15:54:02,526 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 15:54:02,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 15:54:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-11-07 15:54:02,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-11-07 15:54:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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 15:54:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions.
[2024-11-07 15:54:02,562 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 11
[2024-11-07 15:54:02,562 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 15:54:02,562 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions.
[2024-11-07 15:54:02,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15:54:02,563 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions.
[2024-11-07 15:54:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-07 15:54:02,564 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 15:54:02,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 15:54:02,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 15:54:02,565 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-07 15:54:02,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 15:54:02,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2143919297, now seen corresponding path program 1 times
[2024-11-07 15:54:02,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 15:54:02,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020788306]
[2024-11-07 15:54:02,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 15:54:02,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 15:54:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 15:54:02,733 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 15:54:02,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 15:54:02,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020788306]
[2024-11-07 15:54:02,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020788306] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 15:54:02,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 15:54:02,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 15:54:02,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854182837]
[2024-11-07 15:54:02,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 15:54:02,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 15:54:02,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 15:54:02,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 15:54:02,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 15:54:02,736 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 15:54:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 15:54:02,838 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions.
[2024-11-07 15:54:02,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 15:54:02,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Word has length 12
[2024-11-07 15:54:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 15:54:02,839 INFO L225 Difference]: With dead ends: 38
[2024-11-07 15:54:02,839 INFO L226 Difference]: Without dead ends: 38
[2024-11-07 15:54:02,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 15:54:02,840 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 47 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 15:54:02,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 33 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 15:54:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2024-11-07 15:54:02,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28.
[2024-11-07 15:54:02,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 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 15:54:02,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions.
[2024-11-07 15:54:02,846 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 12
[2024-11-07 15:54:02,846 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 15:54:02,846 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions.
[2024-11-07 15:54:02,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 15:54:02,847 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions.
[2024-11-07 15:54:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-07 15:54:02,848 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 15:54:02,848 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 15:54:02,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 15:54:02,848 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-07 15:54:02,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 15:54:02,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2011352413, now seen corresponding path program 1 times
[2024-11-07 15:54:02,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 15:54:02,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218323671]
[2024-11-07 15:54:02,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 15:54:02,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 15:54:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 15:54:02,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 15:54:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 15:54:02,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 15:54:02,965 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-07 15:54:02,966 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining)
[2024-11-07 15:54:02,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining)
[2024-11-07 15:54:02,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 15:54:02,971 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-07 15:54:02,989 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 15:54:02,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:54:02 BoogieIcfgContainer
[2024-11-07 15:54:02,995 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 15:54:02,996 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 15:54:02,996 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 15:54:02,997 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 15:54:02,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:02" (3/4) ...
[2024-11-07 15:54:02,998 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-07 15:54:03,033 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 15:54:03,034 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 15:54:03,036 INFO L158 Benchmark]: Toolchain (without parser) took 1843.85ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 69.0MB in the end (delta: 6.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB.
[2024-11-07 15:54:03,039 INFO L158 Benchmark]: CDTParser took 1.44ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 15:54:03,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.74ms. Allocated memory is still 100.7MB. Free memory was 75.6MB in the beginning and 58.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 15:54:03,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.82ms. Allocated memory is still 100.7MB. Free memory was 58.4MB in the beginning and 56.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 15:54:03,039 INFO L158 Benchmark]: Boogie Preprocessor took 61.50ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 15:54:03,039 INFO L158 Benchmark]: RCFGBuilder took 483.37ms. Allocated memory is still 100.7MB. Free memory was 54.5MB in the beginning and 38.7MB in the end (delta: 15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 15:54:03,040 INFO L158 Benchmark]: TraceAbstraction took 858.87ms. Allocated memory is still 100.7MB. Free memory was 38.1MB in the beginning and 70.8MB in the end (delta: -32.6MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB.
[2024-11-07 15:54:03,040 INFO L158 Benchmark]: Witness Printer took 38.61ms. Allocated memory is still 100.7MB. Free memory was 70.8MB in the beginning and 69.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 15:54:03,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.44ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 338.74ms. Allocated memory is still 100.7MB. Free memory was 75.6MB in the beginning and 58.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 55.82ms. Allocated memory is still 100.7MB. Free memory was 58.4MB in the beginning and 56.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 61.50ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 483.37ms. Allocated memory is still 100.7MB. Free memory was 54.5MB in the beginning and 38.7MB in the end (delta: 15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 858.87ms. Allocated memory is still 100.7MB. Free memory was 38.1MB in the beginning and 70.8MB in the end (delta: -32.6MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB.
* Witness Printer took 38.61ms. Allocated memory is still 100.7MB. Free memory was 70.8MB in the beginning and 69.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 985]: not all allocated memory was freed
not all allocated memory was freed
We found a FailurePath:
[L997] SLL* head = malloc(sizeof(SLL));
[L998] head->next = ((void*)0)
[L999] head->prev = ((void*)0)
[L1000] COND TRUE __VERIFIER_nondet_int()
[L1000] head->data = 2
[L1000] head->opt = malloc(sizeof(SLL))
[L1000] EXPR head->opt
[L1000] head->opt->next = ((void*)0)
[L1001] SLL* x = head;
VAL [head={-1:0}, x={-1:0}]
[L1003] COND FALSE !(__VERIFIER_nondet_int())
[L1006] x = head
VAL [head={-1:0}, x={-1:0}]
[L1007] COND TRUE x != ((void*)0)
VAL [head={-1:0}, x={-1:0}]
[L1009] EXPR x->data
[L1009] EXPR x->data == 2 && x->opt == x
VAL [head={-1:0}, x={-1:0}]
[L1009] EXPR x->data == 2 && x->opt == x
[L1009] EXPR x->opt
[L1009] EXPR x->data == 2 && x->opt == x
VAL [head={-1:0}, x={-1:0}]
[L1009] COND TRUE !(x->data == 2 && x->opt == x)
[L1009] CALL reach_error()
[L985] COND FALSE !(0)
[L985] __assert_fail ("0", "dll-optional-2.c", 16, __extension__ __PRETTY_FUNCTION__)
- UnprovableResult [Line: 994]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 53 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-11-07 15:54:03,070 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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(valid-memcleanup)