./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:26:47,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:26:47,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 04:26:47,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:26:47,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:26:47,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:26:47,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:26:47,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:26:47,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:26:47,621 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:26:47,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:26:47,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:26:47,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:26:47,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:26:47,624 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:26:47,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:26:47,625 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:26:47,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:26:47,626 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:26:47,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:26:47,626 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:26:47,627 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:26:47,627 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 04:26:47,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:26:47,628 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:26:47,628 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:26:47,629 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:26:47,629 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:26:47,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:26:47,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:26:47,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:26:47,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:26:47,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:26:47,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:26:47,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:26:47,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:26:47,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:26:47,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:26:47,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:26:47,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:26:47,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:26:47,633 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_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2023-11-29 04:26:47,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:26:47,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:26:47,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:26:47,880 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:26:47,881 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:26:47,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/locks/test_locks_14-2.c [2023-11-29 04:26:50,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:26:50,814 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:26:50,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/sv-benchmarks/c/locks/test_locks_14-2.c [2023-11-29 04:26:50,823 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/data/2de970516/8bf80947e7f94a32b5316c0c9dc5a1ed/FLAG1497e18bc [2023-11-29 04:26:50,836 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/data/2de970516/8bf80947e7f94a32b5316c0c9dc5a1ed [2023-11-29 04:26:50,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:26:50,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:26:50,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:26:50,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:26:50,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:26:50,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:26:50" (1/1) ... [2023-11-29 04:26:50,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241e4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:50, skipping insertion in model container [2023-11-29 04:26:50,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:26:50" (1/1) ... [2023-11-29 04:26:50,870 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:26:51,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:26:51,019 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:26:51,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:26:51,062 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:26:51,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51 WrapperNode [2023-11-29 04:26:51,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:26:51,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:26:51,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:26:51,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:26:51,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,104 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 199 [2023-11-29 04:26:51,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:26:51,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:26:51,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:26:51,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:26:51,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,117 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,128 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:26:51,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:26:51,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:26:51,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:26:51,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:26:51,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (1/1) ... [2023-11-29 04:26:51,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:26:51,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:51,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:26:51,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:26:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:26:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:26:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:26:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:26:51,291 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:26:51,294 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:26:51,542 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:26:51,572 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:26:51,573 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:26:51,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:26:51 BoogieIcfgContainer [2023-11-29 04:26:51,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:26:51,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:26:51,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:26:51,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:26:51,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:26:50" (1/3) ... [2023-11-29 04:26:51,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e458d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:26:51, skipping insertion in model container [2023-11-29 04:26:51,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:51" (2/3) ... [2023-11-29 04:26:51,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e458d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:26:51, skipping insertion in model container [2023-11-29 04:26:51,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:26:51" (3/3) ... [2023-11-29 04:26:51,583 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2023-11-29 04:26:51,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:26:51,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:26:51,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:26:51,660 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;@404cad05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:26:51,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:26:51,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 49 states have (on average 1.9591836734693877) internal successors, (96), 51 states have internal predecessors, (96), 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) [2023-11-29 04:26:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 04:26:51,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:51,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 04:26:51,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:51,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:51,678 INFO L85 PathProgramCache]: Analyzing trace with hash 9251162, now seen corresponding path program 1 times [2023-11-29 04:26:51,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:51,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536364891] [2023-11-29 04:26:51,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:51,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:51,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:51,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536364891] [2023-11-29 04:26:51,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536364891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:51,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:51,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:26:51,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879107937] [2023-11-29 04:26:51,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:51,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:26:51,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:51,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:26:51,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:26:51,882 INFO L87 Difference]: Start difference. First operand has 52 states, 49 states have (on average 1.9591836734693877) internal successors, (96), 51 states have internal predecessors, (96), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-29 04:26:51,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:51,908 INFO L93 Difference]: Finished difference Result 52 states and 93 transitions. [2023-11-29 04:26:51,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:26:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-29 04:26:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:51,917 INFO L225 Difference]: With dead ends: 52 [2023-11-29 04:26:51,917 INFO L226 Difference]: Without dead ends: 51 [2023-11-29 04:26:51,919 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 [2023-11-29 04:26:51,923 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:51,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:51,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-29 04:26:51,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-29 04:26:51,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 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) [2023-11-29 04:26:51,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2023-11-29 04:26:51,954 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 4 [2023-11-29 04:26:51,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:51,955 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2023-11-29 04:26:51,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-29 04:26:51,955 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2023-11-29 04:26:51,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 04:26:51,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:51,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 04:26:51,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:26:51,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:51,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:51,956 INFO L85 PathProgramCache]: Analyzing trace with hash 279252761, now seen corresponding path program 1 times [2023-11-29 04:26:51,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:51,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040797672] [2023-11-29 04:26:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:51,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:52,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:52,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040797672] [2023-11-29 04:26:52,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040797672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:52,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:52,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:26:52,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807072377] [2023-11-29 04:26:52,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:52,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:26:52,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:52,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:26:52,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:52,045 INFO L87 Difference]: Start difference. First operand 51 states and 92 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 04:26:52,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:52,056 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2023-11-29 04:26:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:26:52,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 04:26:52,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:52,067 INFO L225 Difference]: With dead ends: 50 [2023-11-29 04:26:52,067 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 04:26:52,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:52,069 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 87 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:52,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 90 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 04:26:52,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-29 04:26:52,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 47 states have internal predecessors, (89), 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) [2023-11-29 04:26:52,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2023-11-29 04:26:52,078 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 5 [2023-11-29 04:26:52,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:52,078 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2023-11-29 04:26:52,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 04:26:52,079 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2023-11-29 04:26:52,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:26:52,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:52,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:52,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:26:52,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:52,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:52,081 INFO L85 PathProgramCache]: Analyzing trace with hash 842408509, now seen corresponding path program 1 times [2023-11-29 04:26:52,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:52,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288928270] [2023-11-29 04:26:52,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:52,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:52,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288928270] [2023-11-29 04:26:52,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288928270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:52,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:52,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:26:52,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982223130] [2023-11-29 04:26:52,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:52,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:26:52,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:52,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:26:52,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:52,168 INFO L87 Difference]: Start difference. First operand 48 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:52,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:52,192 INFO L93 Difference]: Finished difference Result 94 states and 174 transitions. [2023-11-29 04:26:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:26:52,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-29 04:26:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:52,195 INFO L225 Difference]: With dead ends: 94 [2023-11-29 04:26:52,195 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 04:26:52,195 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 [2023-11-29 04:26:52,197 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 69 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:52,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 173 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 04:26:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 63. [2023-11-29 04:26:52,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 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) [2023-11-29 04:26:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2023-11-29 04:26:52,209 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2023-11-29 04:26:52,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:52,209 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2023-11-29 04:26:52,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:52,210 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2023-11-29 04:26:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:26:52,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:52,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:52,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:26:52,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:52,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:52,213 INFO L85 PathProgramCache]: Analyzing trace with hash 842631461, now seen corresponding path program 1 times [2023-11-29 04:26:52,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:52,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279722024] [2023-11-29 04:26:52,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:52,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:52,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:52,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279722024] [2023-11-29 04:26:52,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279722024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:52,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:52,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:26:52,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015802283] [2023-11-29 04:26:52,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:52,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:26:52,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:52,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:26:52,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:52,282 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:52,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:52,303 INFO L93 Difference]: Finished difference Result 95 states and 174 transitions. [2023-11-29 04:26:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:26:52,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-29 04:26:52,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:52,306 INFO L225 Difference]: With dead ends: 95 [2023-11-29 04:26:52,306 INFO L226 Difference]: Without dead ends: 95 [2023-11-29 04:26:52,306 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 [2023-11-29 04:26:52,307 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:52,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 223 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:52,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-29 04:26:52,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2023-11-29 04:26:52,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 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) [2023-11-29 04:26:52,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2023-11-29 04:26:52,320 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2023-11-29 04:26:52,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:52,321 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2023-11-29 04:26:52,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:52,321 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2023-11-29 04:26:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:26:52,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:52,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:52,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 04:26:52,323 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:52,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:52,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1151736197, now seen corresponding path program 1 times [2023-11-29 04:26:52,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:52,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184831146] [2023-11-29 04:26:52,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:52,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:52,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:52,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184831146] [2023-11-29 04:26:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184831146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:52,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:52,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:26:52,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950204380] [2023-11-29 04:26:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:52,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:26:52,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:52,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:26:52,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:52,383 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:52,402 INFO L93 Difference]: Finished difference Result 97 states and 174 transitions. [2023-11-29 04:26:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:26:52,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-29 04:26:52,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:52,404 INFO L225 Difference]: With dead ends: 97 [2023-11-29 04:26:52,404 INFO L226 Difference]: Without dead ends: 97 [2023-11-29 04:26:52,404 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 [2023-11-29 04:26:52,406 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 70 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:52,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 197 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:52,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-29 04:26:52,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2023-11-29 04:26:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 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) [2023-11-29 04:26:52,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2023-11-29 04:26:52,416 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2023-11-29 04:26:52,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:52,416 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2023-11-29 04:26:52,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2023-11-29 04:26:52,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:26:52,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:52,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:52,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:26:52,418 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:52,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:52,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1151513245, now seen corresponding path program 1 times [2023-11-29 04:26:52,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:52,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038220836] [2023-11-29 04:26:52,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:52,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:52,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:52,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038220836] [2023-11-29 04:26:52,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038220836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:52,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:52,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:26:52,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401742926] [2023-11-29 04:26:52,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:52,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:26:52,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:52,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:26:52,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:52,464 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:52,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:52,479 INFO L93 Difference]: Finished difference Result 128 states and 229 transitions. [2023-11-29 04:26:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:26:52,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-29 04:26:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:52,481 INFO L225 Difference]: With dead ends: 128 [2023-11-29 04:26:52,481 INFO L226 Difference]: Without dead ends: 128 [2023-11-29 04:26:52,482 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 [2023-11-29 04:26:52,483 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 71 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:52,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 125 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:52,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-29 04:26:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2023-11-29 04:26:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 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) [2023-11-29 04:26:52,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2023-11-29 04:26:52,493 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2023-11-29 04:26:52,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:52,494 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2023-11-29 04:26:52,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:52,494 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2023-11-29 04:26:52,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:26:52,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:52,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:52,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:26:52,496 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:52,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:52,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1555106149, now seen corresponding path program 1 times [2023-11-29 04:26:52,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:52,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350629867] [2023-11-29 04:26:52,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:52,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:26:52,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:26:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:26:52,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:26:52,542 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:26:52,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-29 04:26:52,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-29 04:26:52,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:26:52,549 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:52,553 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:26:52,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:26:52 BoogieIcfgContainer [2023-11-29 04:26:52,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:26:52,597 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:26:52,597 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:26:52,598 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:26:52,598 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:26:51" (3/4) ... [2023-11-29 04:26:52,600 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:26:52,601 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:26:52,602 INFO L158 Benchmark]: Toolchain (without parser) took 1762.18ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 107.6MB in the beginning and 102.3MB in the end (delta: 5.3MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2023-11-29 04:26:52,602 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:26:52,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.34ms. Allocated memory is still 146.8MB. Free memory was 107.6MB in the beginning and 95.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:26:52,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.90ms. Allocated memory is still 146.8MB. Free memory was 95.5MB in the beginning and 94.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:26:52,603 INFO L158 Benchmark]: Boogie Preprocessor took 35.73ms. Allocated memory is still 146.8MB. Free memory was 94.0MB in the beginning and 91.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:26:52,604 INFO L158 Benchmark]: RCFGBuilder took 432.55ms. Allocated memory is still 146.8MB. Free memory was 91.4MB in the beginning and 74.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 04:26:52,604 INFO L158 Benchmark]: TraceAbstraction took 1020.66ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 73.6MB in the beginning and 102.3MB in the end (delta: -28.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-29 04:26:52,605 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 178.3MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:26:52,607 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.34ms. Allocated memory is still 146.8MB. Free memory was 107.6MB in the beginning and 95.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.90ms. Allocated memory is still 146.8MB. Free memory was 95.5MB in the beginning and 94.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.73ms. Allocated memory is still 146.8MB. Free memory was 94.0MB in the beginning and 91.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.55ms. Allocated memory is still 146.8MB. Free memory was 91.4MB in the beginning and 74.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1020.66ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 73.6MB in the beginning and 102.3MB in the end (delta: -28.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 178.3MB. Free memory is still 102.3MB. 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 - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L96] COND FALSE !(p3 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L128] COND FALSE !(p11 != 0) VAL [cond=1, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L219] CALL reach_error() [L3] __assert_fail("0", "test_locks_14-2.c", 3, "reach_error") - UnprovableResult [Line: 6]: 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, 52 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 369 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 369 mSDsluCounter, 899 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 617 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 04:26:52,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:26:54,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:26:54,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-29 04:26:54,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:26:54,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:26:54,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:26:54,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:26:54,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:26:54,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:26:54,679 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:26:54,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:26:54,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:26:54,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:26:54,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:26:54,683 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:26:54,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:26:54,684 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:26:54,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:26:54,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:26:54,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:26:54,686 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:26:54,686 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:26:54,687 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 04:26:54,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:26:54,687 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:26:54,688 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:26:54,688 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:26:54,689 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:26:54,689 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:26:54,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:26:54,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:26:54,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:26:54,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:26:54,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:26:54,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:26:54,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:26:54,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:26:54,692 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:26:54,692 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:26:54,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:26:54,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:26:54,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:26:54,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:26:54,693 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:26:54,693 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_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2023-11-29 04:26:54,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:26:54,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:26:55,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:26:55,001 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:26:55,001 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:26:55,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/locks/test_locks_14-2.c [2023-11-29 04:26:57,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:26:58,000 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:26:58,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/sv-benchmarks/c/locks/test_locks_14-2.c [2023-11-29 04:26:58,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/data/448bb810e/37160be8e0dc4368a147560ff114c15f/FLAG5f623b028 [2023-11-29 04:26:58,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/data/448bb810e/37160be8e0dc4368a147560ff114c15f [2023-11-29 04:26:58,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:26:58,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:26:58,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:26:58,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:26:58,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:26:58,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310118d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58, skipping insertion in model container [2023-11-29 04:26:58,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:26:58,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:26:58,282 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:26:58,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:26:58,328 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:26:58,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58 WrapperNode [2023-11-29 04:26:58,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:26:58,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:26:58,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:26:58,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:26:58,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,372 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 184 [2023-11-29 04:26:58,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:26:58,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:26:58,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:26:58,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:26:58,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,389 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,402 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:26:58,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:26:58,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:26:58,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:26:58,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:26:58,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:26:58,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:58,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:26:58,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:26:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:26:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:26:58,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:26:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:26:58,583 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:26:58,585 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:26:58,850 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:26:58,876 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:26:58,876 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:26:58,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:26:58 BoogieIcfgContainer [2023-11-29 04:26:58,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:26:58,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:26:58,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:26:58,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:26:58,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:26:58" (1/3) ... [2023-11-29 04:26:58,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c56ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:26:58, skipping insertion in model container [2023-11-29 04:26:58,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (2/3) ... [2023-11-29 04:26:58,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c56ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:26:58, skipping insertion in model container [2023-11-29 04:26:58,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:26:58" (3/3) ... [2023-11-29 04:26:58,887 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2023-11-29 04:26:58,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:26:58,907 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:26:58,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:26:58,961 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;@1f299ed2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:26:58,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:26:58,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 49 states have (on average 1.9591836734693877) internal successors, (96), 51 states have internal predecessors, (96), 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) [2023-11-29 04:26:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 04:26:58,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:58,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 04:26:58,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:58,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:58,979 INFO L85 PathProgramCache]: Analyzing trace with hash 9251162, now seen corresponding path program 1 times [2023-11-29 04:26:58,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:26:58,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483989962] [2023-11-29 04:26:58,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:58,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:58,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:26:58,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:26:58,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 04:26:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:59,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:26:59,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:59,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:59,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:26:59,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:26:59,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483989962] [2023-11-29 04:26:59,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483989962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:59,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:59,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:26:59,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274585836] [2023-11-29 04:26:59,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:59,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:26:59,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:26:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:26:59,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:26:59,113 INFO L87 Difference]: Start difference. First operand has 52 states, 49 states have (on average 1.9591836734693877) internal successors, (96), 51 states have internal predecessors, (96), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-29 04:26:59,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:59,137 INFO L93 Difference]: Finished difference Result 52 states and 93 transitions. [2023-11-29 04:26:59,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:26:59,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-29 04:26:59,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:59,148 INFO L225 Difference]: With dead ends: 52 [2023-11-29 04:26:59,148 INFO L226 Difference]: Without dead ends: 51 [2023-11-29 04:26:59,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:26:59,153 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:59,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:59,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-29 04:26:59,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-29 04:26:59,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 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) [2023-11-29 04:26:59,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2023-11-29 04:26:59,191 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 4 [2023-11-29 04:26:59,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:59,191 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2023-11-29 04:26:59,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-29 04:26:59,192 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2023-11-29 04:26:59,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 04:26:59,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:59,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 04:26:59,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:59,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:59,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:59,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:59,394 INFO L85 PathProgramCache]: Analyzing trace with hash 279252761, now seen corresponding path program 1 times [2023-11-29 04:26:59,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:26:59,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000512481] [2023-11-29 04:26:59,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:59,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:59,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:26:59,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:26:59,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 04:26:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:59,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:26:59,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:59,448 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:26:59,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:26:59,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000512481] [2023-11-29 04:26:59,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000512481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:59,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:59,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:26:59,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802122516] [2023-11-29 04:26:59,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:59,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:26:59,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:26:59,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:26:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:59,452 INFO L87 Difference]: Start difference. First operand 51 states and 92 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 04:26:59,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:59,464 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2023-11-29 04:26:59,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:26:59,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 04:26:59,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:59,466 INFO L225 Difference]: With dead ends: 50 [2023-11-29 04:26:59,466 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 04:26:59,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:59,468 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 87 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:59,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 90 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:59,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 04:26:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-29 04:26:59,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 47 states have internal predecessors, (89), 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) [2023-11-29 04:26:59,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2023-11-29 04:26:59,477 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 5 [2023-11-29 04:26:59,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:59,477 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2023-11-29 04:26:59,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 04:26:59,492 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2023-11-29 04:26:59,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:26:59,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:59,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:59,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 04:26:59,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:59,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:59,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash 842408509, now seen corresponding path program 1 times [2023-11-29 04:26:59,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:26:59,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310041157] [2023-11-29 04:26:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:59,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:59,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:26:59,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:26:59,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 04:26:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:59,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:26:59,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:59,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:26:59,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:26:59,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310041157] [2023-11-29 04:26:59,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310041157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:59,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:59,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:26:59,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568250085] [2023-11-29 04:26:59,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:59,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:26:59,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:26:59,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:26:59,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:59,811 INFO L87 Difference]: Start difference. First operand 48 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:59,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:59,837 INFO L93 Difference]: Finished difference Result 94 states and 174 transitions. [2023-11-29 04:26:59,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:26:59,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-29 04:26:59,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:59,840 INFO L225 Difference]: With dead ends: 94 [2023-11-29 04:26:59,841 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 04:26:59,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:26:59,842 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 69 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:59,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 173 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:26:59,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 04:26:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 63. [2023-11-29 04:26:59,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 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) [2023-11-29 04:26:59,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2023-11-29 04:26:59,854 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2023-11-29 04:26:59,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:59,854 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2023-11-29 04:26:59,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:26:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2023-11-29 04:26:59,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:26:59,856 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:59,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:59,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 04:27:00,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:00,057 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:00,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash 842631461, now seen corresponding path program 1 times [2023-11-29 04:27:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963031363] [2023-11-29 04:27:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:00,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:00,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:00,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:00,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 04:27:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:00,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:27:00,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:00,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:00,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:00,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963031363] [2023-11-29 04:27:00,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963031363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:00,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:00,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:27:00,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427319598] [2023-11-29 04:27:00,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:00,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:27:00,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:00,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:27:00,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:00,142 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:27:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:00,162 INFO L93 Difference]: Finished difference Result 95 states and 174 transitions. [2023-11-29 04:27:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:27:00,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-29 04:27:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:00,164 INFO L225 Difference]: With dead ends: 95 [2023-11-29 04:27:00,164 INFO L226 Difference]: Without dead ends: 95 [2023-11-29 04:27:00,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:00,166 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:00,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 223 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-29 04:27:00,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2023-11-29 04:27:00,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 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) [2023-11-29 04:27:00,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2023-11-29 04:27:00,179 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2023-11-29 04:27:00,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:00,179 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2023-11-29 04:27:00,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:27:00,180 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2023-11-29 04:27:00,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:27:00,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:00,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:00,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:00,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:00,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:00,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1151736197, now seen corresponding path program 1 times [2023-11-29 04:27:00,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:00,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565355310] [2023-11-29 04:27:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:00,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:00,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:00,386 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:00,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 04:27:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:00,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:27:00,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:00,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:00,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:00,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565355310] [2023-11-29 04:27:00,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565355310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:00,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:00,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:27:00,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408734454] [2023-11-29 04:27:00,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:00,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:27:00,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:00,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:27:00,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:00,466 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:27:00,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:00,484 INFO L93 Difference]: Finished difference Result 97 states and 174 transitions. [2023-11-29 04:27:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:27:00,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-29 04:27:00,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:00,486 INFO L225 Difference]: With dead ends: 97 [2023-11-29 04:27:00,487 INFO L226 Difference]: Without dead ends: 97 [2023-11-29 04:27:00,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:00,488 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 70 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:00,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 197 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-29 04:27:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2023-11-29 04:27:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 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) [2023-11-29 04:27:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2023-11-29 04:27:00,497 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2023-11-29 04:27:00,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:00,497 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2023-11-29 04:27:00,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:27:00,498 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2023-11-29 04:27:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:27:00,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:00,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:00,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 04:27:00,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:00,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:00,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:00,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1151513245, now seen corresponding path program 1 times [2023-11-29 04:27:00,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:00,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064461149] [2023-11-29 04:27:00,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:00,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:00,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:00,702 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:00,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 04:27:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:00,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:27:00,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:00,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:00,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:00,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064461149] [2023-11-29 04:27:00,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064461149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:00,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:00,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:27:00,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590672355] [2023-11-29 04:27:00,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:00,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:27:00,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:00,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:27:00,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:00,782 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:27:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:00,799 INFO L93 Difference]: Finished difference Result 128 states and 229 transitions. [2023-11-29 04:27:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:27:00,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-29 04:27:00,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:00,801 INFO L225 Difference]: With dead ends: 128 [2023-11-29 04:27:00,801 INFO L226 Difference]: Without dead ends: 128 [2023-11-29 04:27:00,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:00,802 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 71 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:00,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 125 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-29 04:27:00,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2023-11-29 04:27:00,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 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) [2023-11-29 04:27:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2023-11-29 04:27:00,813 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2023-11-29 04:27:00,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:00,814 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2023-11-29 04:27:00,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 04:27:00,814 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2023-11-29 04:27:00,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:27:00,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:00,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:00,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 04:27:01,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:01,018 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:01,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1555106149, now seen corresponding path program 1 times [2023-11-29 04:27:01,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:01,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108472577] [2023-11-29 04:27:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:01,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:01,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:01,020 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:01,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 04:27:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:27:01,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:27:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:27:01,095 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 04:27:01,096 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:27:01,097 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-29 04:27:01,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-29 04:27:01,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 04:27:01,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:01,302 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:01,304 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:27:01,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:27:01 BoogieIcfgContainer [2023-11-29 04:27:01,345 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:27:01,345 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:27:01,345 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:27:01,345 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:27:01,346 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:26:58" (3/4) ... [2023-11-29 04:27:01,348 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:27:01,349 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:27:01,349 INFO L158 Benchmark]: Toolchain (without parser) took 3317.23ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 27.8MB in the beginning and 49.1MB in the end (delta: -21.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 04:27:01,350 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:27:01,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.75ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 27.6MB in the beginning and 62.8MB in the end (delta: -35.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-11-29 04:27:01,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.94ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 60.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:27:01,351 INFO L158 Benchmark]: Boogie Preprocessor took 47.79ms. Allocated memory is still 92.3MB. Free memory was 60.8MB in the beginning and 58.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:27:01,351 INFO L158 Benchmark]: RCFGBuilder took 454.84ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 63.9MB in the end (delta: -5.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-29 04:27:01,352 INFO L158 Benchmark]: TraceAbstraction took 2464.83ms. Allocated memory is still 92.3MB. Free memory was 63.5MB in the beginning and 49.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-29 04:27:01,352 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.1MB in the end (delta: 567.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:27:01,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.75ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 27.6MB in the beginning and 62.8MB in the end (delta: -35.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.94ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 60.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.79ms. Allocated memory is still 92.3MB. Free memory was 60.8MB in the beginning and 58.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.84ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 63.9MB in the end (delta: -5.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2464.83ms. Allocated memory is still 92.3MB. Free memory was 63.5MB in the beginning and 49.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 3.76ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.1MB in the end (delta: 567.2kB). 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 - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L88] COND FALSE !(p1 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L92] COND FALSE !(p2 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L96] COND FALSE !(p3 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L128] COND FALSE !(p11 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p14=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L146] COND FALSE !(p1 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p14=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L151] COND FALSE !(p2 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p14=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L219] CALL reach_error() [L3] __assert_fail("0", "test_locks_14-2.c", 3, "reach_error") - UnprovableResult [Line: 6]: 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, 52 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 369 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 369 mSDsluCounter, 899 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 617 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 267 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 04:27:01,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12ab616-e554-4d7a-9326-f3a6652d43dd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample