./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-circular-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-circular-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu --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 f91abcd8d9f4c4a9bb166bca3090e9f421fd2afed3c0226bce3d2e7c0b6ce95e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:49,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:49,693 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-19 07:46:49,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:49,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:49,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:49,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:49,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:49,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:49,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:49,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:49,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:49,752 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:49,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:49,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:49,761 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:49,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:49,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:49,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:49,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:49,765 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:46:49,765 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:46:49,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:49,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:49,767 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:46:49,767 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:49,768 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:49,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:49,769 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:49,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:49,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:49,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:49,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:49,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:49,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:49,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:49,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:49,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:49,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:49,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:49,775 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:49,775 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91abcd8d9f4c4a9bb166bca3090e9f421fd2afed3c0226bce3d2e7c0b6ce95e [2023-11-19 07:46:50,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:50,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:50,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:50,067 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:50,068 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:50,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/forester-heap/sll-circular-2.i [2023-11-19 07:46:53,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:53,504 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:53,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/sv-benchmarks/c/forester-heap/sll-circular-2.i [2023-11-19 07:46:53,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/data/0cab885a6/c3b4d10c98a34a81a9087fb630c29da2/FLAG308317d6c [2023-11-19 07:46:53,536 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/data/0cab885a6/c3b4d10c98a34a81a9087fb630c29da2 [2023-11-19 07:46:53,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:53,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:53,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:53,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:53,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:53,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:53" (1/1) ... [2023-11-19 07:46:53,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f598f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:53, skipping insertion in model container [2023-11-19 07:46:53,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:53" (1/1) ... [2023-11-19 07:46:53,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:53,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:53,955 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:54,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:54,036 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:54,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54 WrapperNode [2023-11-19 07:46:54,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:54,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:54,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:54,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:54,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,086 INFO L138 Inliner]: procedures = 119, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 114 [2023-11-19 07:46:54,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:54,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:54,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:54,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:54,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:54,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:54,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:54,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:54,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:54,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:54,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:54,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:46:54,197 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:46:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:46:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:46:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:46:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:46:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:54,322 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:54,325 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:54,572 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:54,581 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:54,581 INFO L302 CfgBuilder]: Removed 9 assume(true) statements. [2023-11-19 07:46:54,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:54 BoogieIcfgContainer [2023-11-19 07:46:54,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:54,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:54,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:54,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:54,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:53" (1/3) ... [2023-11-19 07:46:54,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544db8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:54, skipping insertion in model container [2023-11-19 07:46:54,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (2/3) ... [2023-11-19 07:46:54,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544db8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:54, skipping insertion in model container [2023-11-19 07:46:54,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:54" (3/3) ... [2023-11-19 07:46:54,605 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-circular-2.i [2023-11-19 07:46:54,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:54,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:46:54,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:54,679 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@11b7c8fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:54,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:46:54,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 32 states have (on average 1.6875) internal successors, (54), 34 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:46:54,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:46:54,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:54,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:54,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:46:54,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:54,697 INFO L85 PathProgramCache]: Analyzing trace with hash -381840338, now seen corresponding path program 1 times [2023-11-19 07:46:54,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:54,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446496951] [2023-11-19 07:46:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:54,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:55,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:55,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:55,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446496951] [2023-11-19 07:46:55,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446496951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:55,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:55,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:55,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886324044] [2023-11-19 07:46:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:55,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:46:55,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:55,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:46:55,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:55,070 INFO L87 Difference]: Start difference. First operand has 39 states, 32 states have (on average 1.6875) internal successors, (54), 34 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:55,107 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-11-19 07:46:55,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:46:55,110 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:46:55,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:55,118 INFO L225 Difference]: With dead ends: 34 [2023-11-19 07:46:55,118 INFO L226 Difference]: Without dead ends: 32 [2023-11-19 07:46:55,120 INFO L412 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 [2023-11-19 07:46:55,123 INFO L413 NwaCegarLoop]: 42 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, 42 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 [2023-11-19 07:46:55,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:46:55,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-19 07:46:55,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-19 07:46:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 30 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2023-11-19 07:46:55,156 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 8 [2023-11-19 07:46:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:55,157 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2023-11-19 07:46:55,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2023-11-19 07:46:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:46:55,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:55,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:55,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:46:55,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:46:55,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:55,160 INFO L85 PathProgramCache]: Analyzing trace with hash 329918080, now seen corresponding path program 1 times [2023-11-19 07:46:55,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:55,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264895722] [2023-11-19 07:46:55,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:55,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:55,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:55,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264895722] [2023-11-19 07:46:55,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264895722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:55,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:55,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:55,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610468854] [2023-11-19 07:46:55,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:55,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:46:55,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:55,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:46:55,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:55,683 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:55,747 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2023-11-19 07:46:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:46:55,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:46:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:55,749 INFO L225 Difference]: With dead ends: 45 [2023-11-19 07:46:55,749 INFO L226 Difference]: Without dead ends: 45 [2023-11-19 07:46:55,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:55,752 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:55,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 59 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:46:55,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-19 07:46:55,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2023-11-19 07:46:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 33 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2023-11-19 07:46:55,767 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 9 [2023-11-19 07:46:55,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:55,767 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2023-11-19 07:46:55,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2023-11-19 07:46:55,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:46:55,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:55,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:55,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:46:55,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:46:55,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:55,772 INFO L85 PathProgramCache]: Analyzing trace with hash 8092529, now seen corresponding path program 1 times [2023-11-19 07:46:55,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:55,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794295669] [2023-11-19 07:46:55,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:55,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:55,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:55,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794295669] [2023-11-19 07:46:55,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794295669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:55,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:55,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:46:55,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010630741] [2023-11-19 07:46:55,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:55,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:55,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:55,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:55,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:55,836 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:55,857 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2023-11-19 07:46:55,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:55,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 07:46:55,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:55,860 INFO L225 Difference]: With dead ends: 60 [2023-11-19 07:46:55,860 INFO L226 Difference]: Without dead ends: 60 [2023-11-19 07:46:55,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:55,862 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 25 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:55,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 66 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:46:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-19 07:46:55,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 42. [2023-11-19 07:46:55,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 40 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2023-11-19 07:46:55,876 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 12 [2023-11-19 07:46:55,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:55,877 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2023-11-19 07:46:55,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2023-11-19 07:46:55,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 07:46:55,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:55,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:55,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:46:55,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:46:55,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:55,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1779570243, now seen corresponding path program 1 times [2023-11-19 07:46:55,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:55,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034621319] [2023-11-19 07:46:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:55,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:56,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:56,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034621319] [2023-11-19 07:46:56,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034621319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:56,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:56,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:46:56,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683586103] [2023-11-19 07:46:56,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:56,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:46:56,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:56,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:46:56,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:46:56,163 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2023-11-19 07:46:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:56,279 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2023-11-19 07:46:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:46:56,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2023-11-19 07:46:56,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:56,281 INFO L225 Difference]: With dead ends: 68 [2023-11-19 07:46:56,281 INFO L226 Difference]: Without dead ends: 66 [2023-11-19 07:46:56,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:56,283 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 33 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:56,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 111 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:46:56,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-19 07:46:56,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 53. [2023-11-19 07:46:56,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 51 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:56,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2023-11-19 07:46:56,290 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 14 [2023-11-19 07:46:56,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:56,291 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2023-11-19 07:46:56,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2023-11-19 07:46:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2023-11-19 07:46:56,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:46:56,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:56,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:56,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:46:56,293 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:46:56,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:56,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1673795054, now seen corresponding path program 1 times [2023-11-19 07:46:56,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:56,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74842887] [2023-11-19 07:46:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:56,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:56,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:56,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74842887] [2023-11-19 07:46:56,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74842887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:56,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:56,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:46:56,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612404959] [2023-11-19 07:46:56,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:56,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:46:56,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:56,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:46:56,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:46:56,888 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:57,188 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2023-11-19 07:46:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:46:57,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-19 07:46:57,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:57,193 INFO L225 Difference]: With dead ends: 61 [2023-11-19 07:46:57,193 INFO L226 Difference]: Without dead ends: 61 [2023-11-19 07:46:57,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:46:57,198 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:57,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 118 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:46:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-19 07:46:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2023-11-19 07:46:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 53 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 67 transitions. [2023-11-19 07:46:57,207 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 67 transitions. Word has length 15 [2023-11-19 07:46:57,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:57,207 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 67 transitions. [2023-11-19 07:46:57,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2023-11-19 07:46:57,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:46:57,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:57,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:57,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:46:57,209 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:46:57,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1671948012, now seen corresponding path program 1 times [2023-11-19 07:46:57,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:57,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332686791] [2023-11-19 07:46:57,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:57,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:57,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:46:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:57,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:46:57,281 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:46:57,282 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-19 07:46:57,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-19 07:46:57,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:46:57,289 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 07:46:57,293 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:46:57,313 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-19 07:46:57,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-19 07:46:57,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-19 07:46:57,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem8 [2023-11-19 07:46:57,315 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-19 07:46:57,316 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-19 07:46:57,317 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem10 [2023-11-19 07:46:57,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:46:57 BoogieIcfgContainer [2023-11-19 07:46:57,335 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:46:57,336 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:46:57,336 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:46:57,337 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:46:57,338 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:54" (3/4) ... [2023-11-19 07:46:57,339 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:46:57,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-19 07:46:57,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-19 07:46:57,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem10 [2023-11-19 07:46:57,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-19 07:46:57,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem8 [2023-11-19 07:46:57,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-19 07:46:57,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-19 07:46:57,391 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:46:57,391 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:46:57,393 INFO L158 Benchmark]: Toolchain (without parser) took 3851.88ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 74.2MB in the beginning and 67.8MB in the end (delta: 6.4MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2023-11-19 07:46:57,393 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:57,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.74ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 74.2MB in the beginning and 152.6MB in the end (delta: -78.3MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:57,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.13ms. Allocated memory is still 186.6MB. Free memory was 152.6MB in the beginning and 150.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:57,394 INFO L158 Benchmark]: Boogie Preprocessor took 33.88ms. Allocated memory is still 186.6MB. Free memory was 150.5MB in the beginning and 148.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:57,395 INFO L158 Benchmark]: RCFGBuilder took 463.70ms. Allocated memory is still 186.6MB. Free memory was 148.4MB in the beginning and 132.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:46:57,395 INFO L158 Benchmark]: TraceAbstraction took 2746.62ms. Allocated memory is still 186.6MB. Free memory was 131.6MB in the beginning and 71.0MB in the end (delta: 60.6MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2023-11-19 07:46:57,395 INFO L158 Benchmark]: Witness Printer took 55.37ms. Allocated memory is still 186.6MB. Free memory was 71.0MB in the beginning and 67.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:57,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.74ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 74.2MB in the beginning and 152.6MB in the end (delta: -78.3MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.13ms. Allocated memory is still 186.6MB. Free memory was 152.6MB in the beginning and 150.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.88ms. Allocated memory is still 186.6MB. Free memory was 150.5MB in the beginning and 148.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.70ms. Allocated memory is still 186.6MB. Free memory was 148.4MB in the beginning and 132.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2746.62ms. Allocated memory is still 186.6MB. Free memory was 131.6MB in the beginning and 71.0MB in the end (delta: 60.6MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Witness Printer took 55.37ms. Allocated memory is still 186.6MB. Free memory was 71.0MB in the beginning and 67.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem8 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem10 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem10 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem8 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: [L996] SLL* head = malloc(sizeof(SLL)); [L997] head->next = head [L998] head->data = 0 [L1000] SLL* x = head; [L1001] int state = 1; VAL [head={-1:0}, state=1, x={-1:0}] [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1025] x->data = state [L1027] EXPR head->next [L1027] x = head->next [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, state=1, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, state=1, x={-1:0}] [L1030] COND TRUE x->data != 0 [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data [L1032] EXPR x->data [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={-1:0}, state=1, x={-1:0}] [L1032] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1032] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-circular-2.c", 14, __extension__ __PRETTY_FUNCTION__) - UnprovableResult [Line: 993]: 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 2 procedures, 39 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 396 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 236 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 202 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 160 mSDtfsCounter, 202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 47 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2023-11-19 07:46:57,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6837813-106a-48ff-92cb-317b05fb0378/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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)