./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:15,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:15,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:09:15,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:15,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:15,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:15,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:15,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:15,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:15,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:15,443 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:15,444 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:15,445 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:15,445 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:09:15,446 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:15,447 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:15,447 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:09:15,448 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:09:15,449 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:15,449 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:09:15,450 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:09:15,451 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:09:15,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:15,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:15,454 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:09:15,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:09:15,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:09:15,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:15,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:15,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:15,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:15,458 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:09:15,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:15,459 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:15,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:15,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:15,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:15,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:15,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:15,462 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:15,462 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:09:15,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:09:15,463 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:15,464 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:15,464 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:15,464 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_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2023-11-19 05:09:15,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:15,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:15,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:15,796 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:15,797 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:15,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/locks/test_locks_15-1.c [2023-11-19 05:09:19,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:19,596 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:19,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/sv-benchmarks/c/locks/test_locks_15-1.c [2023-11-19 05:09:19,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/data/8c2f90f69/d412de27788f4203b9ee1f66c0ee5e4a/FLAGd5ca5f5eb [2023-11-19 05:09:19,634 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/data/8c2f90f69/d412de27788f4203b9ee1f66c0ee5e4a [2023-11-19 05:09:19,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:19,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:19,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:19,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:19,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:19,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:19" (1/1) ... [2023-11-19 05:09:19,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48141a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:19, skipping insertion in model container [2023-11-19 05:09:19,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:19" (1/1) ... [2023-11-19 05:09:19,718 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:19,995 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2023-11-19 05:09:20,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:20,015 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:09:20,053 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2023-11-19 05:09:20,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:20,072 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:09:20,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20 WrapperNode [2023-11-19 05:09:20,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:20,074 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:20,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:09:20,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:09:20,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,131 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 210 [2023-11-19 05:09:20,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:20,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:09:20,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:09:20,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:09:20,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:09:20,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:09:20,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:09:20,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:09:20,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (1/1) ... [2023-11-19 05:09:20,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:20,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:20,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:09:20,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:09:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:09:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:09:20,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:09:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:09:20,355 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:09:20,358 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:09:20,688 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:09:20,937 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:09:20,938 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:09:20,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:20 BoogieIcfgContainer [2023-11-19 05:09:20,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:09:20,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:09:20,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:09:20,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:09:20,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:19" (1/3) ... [2023-11-19 05:09:20,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a009a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:20, skipping insertion in model container [2023-11-19 05:09:20,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:20" (2/3) ... [2023-11-19 05:09:20,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a009a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:20, skipping insertion in model container [2023-11-19 05:09:20,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:20" (3/3) ... [2023-11-19 05:09:20,957 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2023-11-19 05:09:20,981 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:09:20,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:09:21,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:09:21,050 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@23f25999, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:09:21,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:09:21,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 37 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:09:21,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:09:21,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:21,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:09:21,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:09:21,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash 390618466, now seen corresponding path program 1 times [2023-11-19 05:09:21,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:21,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091612856] [2023-11-19 05:09:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:21,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:09:21,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:09:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:09:21,304 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:09:21,307 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:09:21,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:09:21,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:09:21,317 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:09:21,322 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:09:21,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:09:21 BoogieIcfgContainer [2023-11-19 05:09:21,369 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:09:21,370 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:09:21,370 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:09:21,370 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:09:21,371 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:20" (3/4) ... [2023-11-19 05:09:21,372 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 05:09:21,500 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:09:21,500 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:09:21,502 INFO L158 Benchmark]: Toolchain (without parser) took 1857.71ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 111.5MB in the beginning and 158.1MB in the end (delta: -46.6MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-19 05:09:21,502 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:09:21,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.16ms. Allocated memory is still 151.0MB. Free memory was 111.5MB in the beginning and 99.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:09:21,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.34ms. Allocated memory is still 151.0MB. Free memory was 99.6MB in the beginning and 97.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:09:21,504 INFO L158 Benchmark]: Boogie Preprocessor took 35.49ms. Allocated memory is still 151.0MB. Free memory was 97.5MB in the beginning and 96.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:09:21,513 INFO L158 Benchmark]: RCFGBuilder took 775.30ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 96.1MB in the beginning and 178.0MB in the end (delta: -81.9MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-19 05:09:21,513 INFO L158 Benchmark]: TraceAbstraction took 420.93ms. Allocated memory is still 213.9MB. Free memory was 178.0MB in the beginning and 161.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 05:09:21,514 INFO L158 Benchmark]: Witness Printer took 130.62ms. Allocated memory is still 213.9MB. Free memory was 161.2MB in the beginning and 158.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:09:21,517 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.16ms. Allocated memory is still 151.0MB. Free memory was 111.5MB in the beginning and 99.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.34ms. Allocated memory is still 151.0MB. Free memory was 99.6MB in the beginning and 97.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.49ms. Allocated memory is still 151.0MB. Free memory was 97.5MB in the beginning and 96.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 775.30ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 96.1MB in the beginning and 178.0MB in the end (delta: -81.9MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * TraceAbstraction took 420.93ms. Allocated memory is still 213.9MB. Free memory was 178.0MB in the beginning and 161.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 130.62ms. Allocated memory is still 213.9MB. Free memory was 161.2MB in the beginning and 158.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 233]: a call to reach_error is reachable a call to reach_error is reachable We found a 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=1, p11=0, p12=0, p13=0, p14=0, p15=1, p1=0, p2=0, p3=0, p4=1, p5=0, p6=0, p7=0, p8=0, p9=0] [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 FALSE !(p3 != 0) [L105] COND TRUE p4 != 0 [L106] lk4 = 1 [L109] COND FALSE !(p5 != 0) [L113] COND FALSE !(p6 != 0) [L117] COND FALSE !(p7 != 0) [L121] COND FALSE !(p8 != 0) [L125] COND FALSE !(p9 != 0) [L129] COND TRUE p10 != 0 [L130] lk10 = 1 [L133] COND FALSE !(p11 != 0) [L137] COND FALSE !(p12 != 0) [L141] COND FALSE !(p13 != 0) [L145] COND FALSE !(p14 != 0) [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=0, p13=0, p14=0, p15=1, p1=0, p2=0, p3=0, p4=1, p5=0, p6=0, p7=0, p8=0, p9=0] [L155] COND FALSE !(p1 != 0) VAL [cond=1, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=0, p13=0, p14=0, p15=1, p1=0, p2=0, p3=0, p4=1, p5=0, p6=0, p7=0, p8=0, p9=0] [L160] COND FALSE !(p2 != 0) VAL [cond=1, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=0, p13=0, p14=0, p15=1, p1=0, p2=0, p3=0, p4=1, p5=0, p6=0, p7=0, p8=0, p9=0] [L233] reach_error() VAL [cond=1, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=0, p13=0, p14=0, p15=1, p1=0, p2=0, p3=0, p4=1, p5=0, p6=0, p7=0, p8=0, p9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 05:09:21,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0af4e70a-cd28-47b6-9283-c603deb3427c/bin/utaipan-verify-t7M7D8N6sZ/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE