./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:22:38,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:22:38,964 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-12-02 18:22:38,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:22:38,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:22:38,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:22:38,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:22:38,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:22:38,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:22:38,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:22:38,995 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:22:38,995 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:22:38,996 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:22:38,996 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:22:38,997 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:22:38,997 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:22:38,998 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:22:38,998 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:22:38,999 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:22:38,999 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:22:39,000 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:22:39,001 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:22:39,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 18:22:39,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 18:22:39,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:22:39,002 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:22:39,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:22:39,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:22:39,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:22:39,004 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 18:22:39,004 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 18:22:39,005 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 18:22:39,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:22:39,005 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:22:39,005 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:22:39,006 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:22:39,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:22:39,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:22:39,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:22:39,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:22:39,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:22:39,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:22:39,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:22:39,007 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:22:39,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:22:39,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:22:39,008 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:22:39,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:22:39,008 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2023-12-02 18:22:39,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:22:39,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:22:39,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:22:39,255 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:22:39,256 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:22:39,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/locks/test_locks_15-1.c [2023-12-02 18:22:41,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:22:42,097 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:22:42,098 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/sv-benchmarks/c/locks/test_locks_15-1.c [2023-12-02 18:22:42,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/data/0b7c9b2c1/41e16640304e455cb6dd190e18bbb1ac/FLAGde3a174f5 [2023-12-02 18:22:42,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/data/0b7c9b2c1/41e16640304e455cb6dd190e18bbb1ac [2023-12-02 18:22:42,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:22:42,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:22:42,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:22:42,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:22:42,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:22:42,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6451565d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42, skipping insertion in model container [2023-12-02 18:22:42,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,169 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:22:42,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:22:42,381 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:22:42,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:22:42,422 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:22:42,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42 WrapperNode [2023-12-02 18:22:42,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:22:42,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:22:42,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:22:42,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:22:42,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,461 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 211 [2023-12-02 18:22:42,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:22:42,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:22:42,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:22:42,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:22:42,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:22:42,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:22:42,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:22:42,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:22:42,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (1/1) ... [2023-12-02 18:22:42,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:22:42,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:22:42,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:22:42,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:22:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:22:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:22:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:22:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:22:42,630 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:22:42,631 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:22:42,850 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:22:42,956 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:22:42,956 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:22:42,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:22:42 BoogieIcfgContainer [2023-12-02 18:22:42,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:22:42,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:22:42,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:22:42,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:22:42,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:22:42" (1/3) ... [2023-12-02 18:22:42,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d174c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:22:42, skipping insertion in model container [2023-12-02 18:22:42,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:42" (2/3) ... [2023-12-02 18:22:42,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d174c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:22:42, skipping insertion in model container [2023-12-02 18:22:42,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:22:42" (3/3) ... [2023-12-02 18:22:42,969 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2023-12-02 18:22:42,988 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:22:42,989 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 18:22:43,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:22:43,043 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=FINITE_AUTOMATA, 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;@e0e21ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:22:43,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 18:22:43,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 39 states have internal predecessors, (71), 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) [2023-12-02 18:22:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 18:22:43,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:43,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 18:22:43,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:43,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:43,060 INFO L85 PathProgramCache]: Analyzing trace with hash 9799476, now seen corresponding path program 1 times [2023-12-02 18:22:43,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:22:43,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099720017] [2023-12-02 18:22:43,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:43,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:22:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:22:43,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:22:43,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:22:43,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099720017] [2023-12-02 18:22:43,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099720017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:22:43,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:22:43,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:22:43,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80028747] [2023-12-02 18:22:43,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:22:43,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:22:43,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:22:43,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:22:43,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:22:43,259 INFO L87 Difference]: Start difference. First operand has 40 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 39 states have internal predecessors, (71), 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) [2023-12-02 18:22:43,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:22:43,288 INFO L93 Difference]: Finished difference Result 40 states and 69 transitions. [2023-12-02 18:22:43,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:22:43,291 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 [2023-12-02 18:22:43,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:22:43,300 INFO L225 Difference]: With dead ends: 40 [2023-12-02 18:22:43,300 INFO L226 Difference]: Without dead ends: 39 [2023-12-02 18:22:43,302 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 [2023-12-02 18:22:43,305 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:22:43,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:22:43,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-02 18:22:43,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-12-02 18:22:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.837837837837838) internal successors, (68), 38 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:22:43,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 68 transitions. [2023-12-02 18:22:43,341 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 68 transitions. Word has length 4 [2023-12-02 18:22:43,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:22:43,342 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 68 transitions. [2023-12-02 18:22:43,342 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) [2023-12-02 18:22:43,342 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 68 transitions. [2023-12-02 18:22:43,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 18:22:43,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:43,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 18:22:43,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:22:43,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:43,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:43,344 INFO L85 PathProgramCache]: Analyzing trace with hash 294953162, now seen corresponding path program 1 times [2023-12-02 18:22:43,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:22:43,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877877748] [2023-12-02 18:22:43,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:43,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:22:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:22:43,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:22:43,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:22:43,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877877748] [2023-12-02 18:22:43,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877877748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:22:43,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:22:43,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 18:22:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304091855] [2023-12-02 18:22:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:22:43,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:22:43,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:22:43,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:22:43,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:43,408 INFO L87 Difference]: Start difference. First operand 39 states and 68 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) [2023-12-02 18:22:43,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:22:43,422 INFO L93 Difference]: Finished difference Result 38 states and 67 transitions. [2023-12-02 18:22:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:22:43,423 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 [2023-12-02 18:22:43,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:22:43,424 INFO L225 Difference]: With dead ends: 38 [2023-12-02 18:22:43,424 INFO L226 Difference]: Without dead ends: 36 [2023-12-02 18:22:43,425 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 [2023-12-02 18:22:43,426 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 65 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 [2023-12-02 18:22:43,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:22:43,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-02 18:22:43,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-12-02 18:22:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.8571428571428572) internal successors, (65), 35 states have internal predecessors, (65), 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) [2023-12-02 18:22:43,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 65 transitions. [2023-12-02 18:22:43,433 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 65 transitions. Word has length 5 [2023-12-02 18:22:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:22:43,434 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 65 transitions. [2023-12-02 18:22:43,434 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) [2023-12-02 18:22:43,434 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 65 transitions. [2023-12-02 18:22:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 18:22:43,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:43,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:22:43,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:22:43,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:43,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash 258943231, now seen corresponding path program 1 times [2023-12-02 18:22:43,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:22:43,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159201505] [2023-12-02 18:22:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:43,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:22:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:22:43,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:22:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:22:43,509 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:22:43,510 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:22:43,511 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-12-02 18:22:43,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-12-02 18:22:43,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 18:22:43,517 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 18:22:43,520 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:22:43,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:22:43 BoogieIcfgContainer [2023-12-02 18:22:43,549 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:22:43,549 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:22:43,549 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:22:43,550 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:22:43,550 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:22:42" (3/4) ... [2023-12-02 18:22:43,552 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:22:43,553 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:22:43,554 INFO L158 Benchmark]: Toolchain (without parser) took 1428.63ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 61.8MB in the end (delta: 63.8MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2023-12-02 18:22:43,554 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:22:43,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.54ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 130.2MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 18:22:43,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.60ms. Allocated memory is still 163.6MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:22:43,556 INFO L158 Benchmark]: Boogie Preprocessor took 26.94ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 126.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:22:43,557 INFO L158 Benchmark]: RCFGBuilder took 468.54ms. Allocated memory is still 163.6MB. Free memory was 126.8MB in the beginning and 97.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-02 18:22:43,557 INFO L158 Benchmark]: TraceAbstraction took 586.95ms. Allocated memory is still 163.6MB. Free memory was 96.7MB in the beginning and 62.4MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-12-02 18:22:43,558 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 163.6MB. Free memory was 62.4MB in the beginning and 61.8MB in the end (delta: 647.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:22:43,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.54ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 130.2MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.60ms. Allocated memory is still 163.6MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.94ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 126.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 468.54ms. Allocated memory is still 163.6MB. Free memory was 126.8MB in the beginning and 97.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 586.95ms. Allocated memory is still 163.6MB. Free memory was 96.7MB in the beginning and 62.4MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 163.6MB. Free memory was 62.4MB in the beginning and 61.8MB in the end (delta: 647.7kB). 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; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; VAL [p10=0, p11=1, p12=0, p13=0, p14=1, p15=0, p1=0, p2=0, p3=1, p4=0, p5=0, p6=0, p7=1, p8=1, p9=1] [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND TRUE p3 != 0 [L102] lk3 = 1 [L105] COND FALSE !(p4 != 0) [L109] COND FALSE !(p5 != 0) [L113] COND FALSE !(p6 != 0) [L117] COND TRUE p7 != 0 [L118] lk7 = 1 [L121] COND TRUE p8 != 0 [L122] lk8 = 1 [L125] COND TRUE p9 != 0 [L126] lk9 = 1 [L129] COND FALSE !(p10 != 0) [L133] COND TRUE p11 != 0 [L134] lk11 = 1 [L137] COND FALSE !(p12 != 0) [L141] COND FALSE !(p13 != 0) [L145] COND TRUE p14 != 0 [L146] lk14 = 1 [L149] COND FALSE !(p15 != 0) VAL [cond=1, lk10=0, lk11=1, lk12=0, lk13=0, lk14=1, lk15=0, lk1=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=1, lk8=1, lk9=1, p10=0, p11=1, p12=0, p13=0, p14=1, p15=0, p1=0, p2=0, p3=1, p4=0, p5=0, p6=0, p7=1, p8=1, p9=1] [L155] COND FALSE !(p1 != 0) VAL [cond=1, lk10=0, lk11=1, lk12=0, lk13=0, lk14=1, lk15=0, lk1=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=1, lk8=1, lk9=1, p10=0, p11=1, p12=0, p13=0, p14=1, p15=0, p1=0, p2=0, p3=1, p4=0, p5=0, p6=0, p7=1, p8=1, p9=1] [L160] COND FALSE !(p2 != 0) VAL [cond=1, lk10=0, lk11=1, lk12=0, lk13=0, lk14=1, lk15=0, lk1=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=1, lk8=1, lk9=1, p10=0, p11=1, p12=0, p13=0, p14=1, p15=0, p1=0, p2=0, p3=1, p4=0, p5=0, p6=0, p7=1, p8=1, p9=1] [L233] CALL reach_error() [L3] __assert_fail("0", "test_locks_15-1.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, 40 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 131 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 18:22:43,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:22:45,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:22:45,586 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-12-02 18:22:45,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:22:45,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:22:45,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:22:45,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:22:45,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:22:45,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:22:45,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:22:45,625 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:22:45,625 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:22:45,626 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:22:45,626 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:22:45,627 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:22:45,627 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:22:45,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 18:22:45,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 18:22:45,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:22:45,630 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:22:45,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:22:45,631 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:22:45,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:22:45,632 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 18:22:45,632 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 18:22:45,632 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 18:22:45,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:22:45,633 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:22:45,634 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:22:45,634 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:22:45,634 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:22:45,635 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:22:45,635 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:22:45,635 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:22:45,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:22:45,636 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:22:45,636 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:22:45,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:22:45,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:22:45,637 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:22:45,637 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:22:45,637 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:22:45,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:22:45,638 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:22:45,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:22:45,638 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2023-12-02 18:22:45,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:22:45,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:22:45,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:22:45,932 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:22:45,933 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:22:45,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/locks/test_locks_15-1.c [2023-12-02 18:22:48,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:22:48,905 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:22:48,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/sv-benchmarks/c/locks/test_locks_15-1.c [2023-12-02 18:22:48,914 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/data/100d8a5d6/e3ba342ce8c946e5873ead9b44a4ff0e/FLAGb0bb85e2b [2023-12-02 18:22:48,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/data/100d8a5d6/e3ba342ce8c946e5873ead9b44a4ff0e [2023-12-02 18:22:48,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:22:48,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:22:48,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:22:48,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:22:48,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:22:48,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:22:48" (1/1) ... [2023-12-02 18:22:48,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307856b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:48, skipping insertion in model container [2023-12-02 18:22:48,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:22:48" (1/1) ... [2023-12-02 18:22:48,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:22:49,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:22:49,127 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:22:49,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:22:49,170 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:22:49,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49 WrapperNode [2023-12-02 18:22:49,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:22:49,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:22:49,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:22:49,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:22:49,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,211 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 195 [2023-12-02 18:22:49,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:22:49,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:22:49,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:22:49,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:22:49,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:22:49,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:22:49,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:22:49,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:22:49,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (1/1) ... [2023-12-02 18:22:49,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:22:49,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:22:49,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:22:49,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:22:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:22:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:22:49,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:22:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:22:49,402 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:22:49,404 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:22:49,683 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:22:49,708 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:22:49,708 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:22:49,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:22:49 BoogieIcfgContainer [2023-12-02 18:22:49,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:22:49,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:22:49,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:22:49,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:22:49,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:22:48" (1/3) ... [2023-12-02 18:22:49,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7d5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:22:49, skipping insertion in model container [2023-12-02 18:22:49,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:22:49" (2/3) ... [2023-12-02 18:22:49,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7d5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:22:49, skipping insertion in model container [2023-12-02 18:22:49,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:22:49" (3/3) ... [2023-12-02 18:22:49,718 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2023-12-02 18:22:49,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:22:49,736 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 18:22:49,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:22:49,790 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=FINITE_AUTOMATA, 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;@710059e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:22:49,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 18:22:49,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 52 states have (on average 1.9615384615384615) internal successors, (102), 54 states have internal predecessors, (102), 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) [2023-12-02 18:22:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 18:22:49,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:49,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 18:22:49,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:49,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:49,807 INFO L85 PathProgramCache]: Analyzing trace with hash 9774490, now seen corresponding path program 1 times [2023-12-02 18:22:49,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:22:49,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133559390] [2023-12-02 18:22:49,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:49,820 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 [2023-12-02 18:22:49,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:22:49,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:22:49,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:22:49,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:22:49,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:22:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:22:49,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:22:49,908 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:22:49,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133559390] [2023-12-02 18:22:49,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133559390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:22:49,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:22:49,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:22:49,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844733413] [2023-12-02 18:22:49,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:22:49,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:22:49,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:22:49,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:22:49,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:22:49,947 INFO L87 Difference]: Start difference. First operand has 55 states, 52 states have (on average 1.9615384615384615) internal successors, (102), 54 states have internal predecessors, (102), 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) [2023-12-02 18:22:49,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:22:49,972 INFO L93 Difference]: Finished difference Result 55 states and 99 transitions. [2023-12-02 18:22:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:22:49,974 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 [2023-12-02 18:22:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:22:49,982 INFO L225 Difference]: With dead ends: 55 [2023-12-02 18:22:49,983 INFO L226 Difference]: Without dead ends: 54 [2023-12-02 18:22:49,984 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 [2023-12-02 18:22:49,988 INFO L413 NwaCegarLoop]: 97 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, 97 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 [2023-12-02 18:22:49,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:22:50,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-02 18:22:50,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-12-02 18:22:50,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 53 states have internal predecessors, (98), 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) [2023-12-02 18:22:50,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2023-12-02 18:22:50,024 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 4 [2023-12-02 18:22:50,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:22:50,025 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2023-12-02 18:22:50,025 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) [2023-12-02 18:22:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2023-12-02 18:22:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 18:22:50,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:50,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 18:22:50,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:50,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:50,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:50,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:50,228 INFO L85 PathProgramCache]: Analyzing trace with hash 294953162, now seen corresponding path program 1 times [2023-12-02 18:22:50,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:22:50,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747503470] [2023-12-02 18:22:50,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:50,229 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 [2023-12-02 18:22:50,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:22:50,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:22:50,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:22:50,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 18:22:50,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:22:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:22:50,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:22:50,306 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:22:50,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747503470] [2023-12-02 18:22:50,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747503470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:22:50,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:22:50,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 18:22:50,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925658181] [2023-12-02 18:22:50,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:22:50,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:22:50,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:22:50,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:22:50,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:50,310 INFO L87 Difference]: Start difference. First operand 54 states and 98 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) [2023-12-02 18:22:50,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:22:50,321 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2023-12-02 18:22:50,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:22:50,322 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 [2023-12-02 18:22:50,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:22:50,323 INFO L225 Difference]: With dead ends: 53 [2023-12-02 18:22:50,323 INFO L226 Difference]: Without dead ends: 51 [2023-12-02 18:22:50,324 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 [2023-12-02 18:22:50,325 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 93 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 96 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 [2023-12-02 18:22:50,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:22:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-02 18:22:50,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-12-02 18:22:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 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) [2023-12-02 18:22:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2023-12-02 18:22:50,333 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 5 [2023-12-02 18:22:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:22:50,334 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2023-12-02 18:22:50,334 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) [2023-12-02 18:22:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2023-12-02 18:22:50,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 18:22:50,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:50,335 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, 1] [2023-12-02 18:22:50,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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)] Forceful destruction successful, exit code 0 [2023-12-02 18:22:50,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:50,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:50,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:50,538 INFO L85 PathProgramCache]: Analyzing trace with hash 57812329, now seen corresponding path program 1 times [2023-12-02 18:22:50,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:22:50,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127830141] [2023-12-02 18:22:50,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:50,540 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 [2023-12-02 18:22:50,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:22:50,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:22:50,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:22:50,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 18:22:50,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:22:50,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:22:50,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:22:50,638 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:22:50,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127830141] [2023-12-02 18:22:50,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127830141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:22:50,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:22:50,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:22:50,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090155252] [2023-12-02 18:22:50,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:22:50,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:22:50,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:22:50,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:22:50,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:50,641 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-02 18:22:50,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:22:50,668 INFO L93 Difference]: Finished difference Result 100 states and 185 transitions. [2023-12-02 18:22:50,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:22:50,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2023-12-02 18:22:50,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:22:50,671 INFO L225 Difference]: With dead ends: 100 [2023-12-02 18:22:50,671 INFO L226 Difference]: Without dead ends: 100 [2023-12-02 18:22:50,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:50,672 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 77 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 239 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 [2023-12-02 18:22:50,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 239 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:22:50,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-02 18:22:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2023-12-02 18:22:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.90625) internal successors, (183), 96 states have internal predecessors, (183), 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) [2023-12-02 18:22:50,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2023-12-02 18:22:50,695 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2023-12-02 18:22:50,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:22:50,696 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2023-12-02 18:22:50,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-02 18:22:50,696 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2023-12-02 18:22:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 18:22:50,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:50,697 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, 1] [2023-12-02 18:22:50,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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)] Forceful destruction successful, exit code 0 [2023-12-02 18:22:50,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:50,899 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:50,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:50,899 INFO L85 PathProgramCache]: Analyzing trace with hash 57589377, now seen corresponding path program 1 times [2023-12-02 18:22:50,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:22:50,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640296102] [2023-12-02 18:22:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:50,900 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 [2023-12-02 18:22:50,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:22:50,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:22:50,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:22:50,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 18:22:50,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:22:50,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:22:50,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:22:50,987 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:22:50,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640296102] [2023-12-02 18:22:50,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640296102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:22:50,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:22:50,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:22:50,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802192767] [2023-12-02 18:22:50,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:22:50,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:22:50,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:22:50,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:22:50,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:50,990 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-02 18:22:51,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:22:51,007 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2023-12-02 18:22:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:22:51,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2023-12-02 18:22:51,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:22:51,010 INFO L225 Difference]: With dead ends: 98 [2023-12-02 18:22:51,010 INFO L226 Difference]: Without dead ends: 98 [2023-12-02 18:22:51,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:51,011 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:22:51,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 183 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:22:51,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-02 18:22:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-12-02 18:22:51,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 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) [2023-12-02 18:22:51,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2023-12-02 18:22:51,023 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2023-12-02 18:22:51,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:22:51,023 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2023-12-02 18:22:51,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-02 18:22:51,024 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2023-12-02 18:22:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 18:22:51,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:51,025 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, 1] [2023-12-02 18:22:51,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 18:22:51,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:51,228 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:51,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:51,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1631131413, now seen corresponding path program 1 times [2023-12-02 18:22:51,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:22:51,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319455529] [2023-12-02 18:22:51,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:51,230 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 [2023-12-02 18:22:51,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:22:51,231 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:22:51,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:22:51,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 18:22:51,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:22:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:22:51,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:22:51,308 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:22:51,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319455529] [2023-12-02 18:22:51,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319455529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:22:51,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:22:51,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:22:51,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925718613] [2023-12-02 18:22:51,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:22:51,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:22:51,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:22:51,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:22:51,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:51,310 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-02 18:22:51,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:22:51,326 INFO L93 Difference]: Finished difference Result 138 states and 252 transitions. [2023-12-02 18:22:51,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:22:51,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2023-12-02 18:22:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:22:51,328 INFO L225 Difference]: With dead ends: 138 [2023-12-02 18:22:51,329 INFO L226 Difference]: Without dead ends: 138 [2023-12-02 18:22:51,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:51,330 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 77 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 133 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 [2023-12-02 18:22:51,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 133 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:22:51,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-02 18:22:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2023-12-02 18:22:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.8656716417910448) internal successors, (250), 134 states have internal predecessors, (250), 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) [2023-12-02 18:22:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2023-12-02 18:22:51,340 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2023-12-02 18:22:51,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:22:51,340 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2023-12-02 18:22:51,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-02 18:22:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2023-12-02 18:22:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 18:22:51,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:51,342 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, 1] [2023-12-02 18:22:51,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:51,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:51,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:51,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:51,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1631354365, now seen corresponding path program 1 times [2023-12-02 18:22:51,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:22:51,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147941658] [2023-12-02 18:22:51,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:51,546 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 [2023-12-02 18:22:51,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:22:51,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:22:51,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:22:51,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 18:22:51,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:22:51,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:22:51,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:22:51,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:22:51,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147941658] [2023-12-02 18:22:51,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147941658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:22:51,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:22:51,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:22:51,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012075888] [2023-12-02 18:22:51,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:22:51,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:22:51,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:22:51,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:22:51,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:51,621 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-02 18:22:51,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:22:51,637 INFO L93 Difference]: Finished difference Result 136 states and 245 transitions. [2023-12-02 18:22:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:22:51,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2023-12-02 18:22:51,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:22:51,638 INFO L225 Difference]: With dead ends: 136 [2023-12-02 18:22:51,639 INFO L226 Difference]: Without dead ends: 136 [2023-12-02 18:22:51,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:22:51,640 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 75 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 211 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 [2023-12-02 18:22:51,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 211 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:22:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-02 18:22:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2023-12-02 18:22:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.8409090909090908) internal successors, (243), 132 states have internal predecessors, (243), 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) [2023-12-02 18:22:51,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2023-12-02 18:22:51,650 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2023-12-02 18:22:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:22:51,651 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2023-12-02 18:22:51,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-02 18:22:51,651 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2023-12-02 18:22:51,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 18:22:51,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:22:51,653 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, 1] [2023-12-02 18:22:51,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:51,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:51,853 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 18:22:51,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:22:51,854 INFO L85 PathProgramCache]: Analyzing trace with hash 669691177, now seen corresponding path program 1 times [2023-12-02 18:22:51,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:22:51,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723661800] [2023-12-02 18:22:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:22:51,855 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 [2023-12-02 18:22:51,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:22:51,855 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:22:51,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:22:51,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:22:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:22:51,949 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 18:22:51,949 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:22:51,950 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-12-02 18:22:51,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-12-02 18:22:51,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:52,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:22:52,155 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:22:52,158 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:22:52,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:22:52 BoogieIcfgContainer [2023-12-02 18:22:52,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:22:52,195 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:22:52,195 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:22:52,195 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:22:52,196 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:22:49" (3/4) ... [2023-12-02 18:22:52,197 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:22:52,198 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:22:52,199 INFO L158 Benchmark]: Toolchain (without parser) took 3267.97ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 78.7MB in the end (delta: 682.0kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2023-12-02 18:22:52,199 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:22:52,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.73ms. Allocated memory is still 102.8MB. Free memory was 79.1MB in the beginning and 66.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 18:22:52,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.91ms. Allocated memory is still 102.8MB. Free memory was 66.9MB in the beginning and 65.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:22:52,200 INFO L158 Benchmark]: Boogie Preprocessor took 34.48ms. Allocated memory is still 102.8MB. Free memory was 65.0MB in the beginning and 63.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:22:52,200 INFO L158 Benchmark]: RCFGBuilder took 461.39ms. Allocated memory is still 102.8MB. Free memory was 63.3MB in the beginning and 73.7MB in the end (delta: -10.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-12-02 18:22:52,200 INFO L158 Benchmark]: TraceAbstraction took 2483.41ms. Allocated memory is still 102.8MB. Free memory was 72.8MB in the beginning and 79.5MB in the end (delta: -6.6MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2023-12-02 18:22:52,200 INFO L158 Benchmark]: Witness Printer took 2.95ms. Allocated memory is still 102.8MB. Free memory was 79.5MB in the beginning and 78.7MB in the end (delta: 777.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:22:52,202 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.73ms. Allocated memory is still 102.8MB. Free memory was 79.1MB in the beginning and 66.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.91ms. Allocated memory is still 102.8MB. Free memory was 66.9MB in the beginning and 65.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.48ms. Allocated memory is still 102.8MB. Free memory was 65.0MB in the beginning and 63.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 461.39ms. Allocated memory is still 102.8MB. Free memory was 63.3MB in the beginning and 73.7MB in the end (delta: -10.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2483.41ms. Allocated memory is still 102.8MB. Free memory was 72.8MB in the beginning and 79.5MB in the end (delta: -6.6MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * Witness Printer took 2.95ms. Allocated memory is still 102.8MB. Free memory was 79.5MB in the beginning and 78.7MB in the end (delta: 777.1kB). 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; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L93] COND FALSE !(p1 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L97] COND FALSE !(p2 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L101] COND FALSE !(p3 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L133] COND FALSE !(p11 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=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] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=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] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=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] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=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, p14=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=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, p15=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L155] COND FALSE !(p1 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=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, p15=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L160] COND FALSE !(p2 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=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, p15=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L233] CALL reach_error() [L3] __assert_fail("0", "test_locks_15-1.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, 55 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, 336 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 959 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 656 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, 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, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 279 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 [2023-12-02 18:22:52,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ad8210-0ba5-418b-a61c-edccd8cc4eee/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample