./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:00:02,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:00:02,443 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-12 00:00:02,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:00:02,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:00:02,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:00:02,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:00:02,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:00:02,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:00:02,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:00:02,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:00:02,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:00:02,483 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:00:02,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:00:02,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:00:02,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:00:02,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:00:02,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:00:02,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:00:02,486 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:00:02,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:00:02,489 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:00:02,490 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:00:02,490 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:00:02,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:00:02,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:00:02,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:00:02,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:00:02,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:00:02,494 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:00:02,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:00:02,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:00:02,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2023-11-12 00:00:02,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:00:02,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:00:02,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:00:02,857 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:00:02,858 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:00:02,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2023-11-12 00:00:06,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:00:06,453 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:00:06,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2023-11-12 00:00:06,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/data/749ad5b34/dc2332bd6c1d4b27ba374cbd4bc419f4/FLAGfe890804a [2023-11-12 00:00:06,491 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/data/749ad5b34/dc2332bd6c1d4b27ba374cbd4bc419f4 [2023-11-12 00:00:06,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:00:06,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:00:06,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:00:06,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:00:06,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:00:06,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:00:06" (1/1) ... [2023-11-12 00:00:06,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a53ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:06, skipping insertion in model container [2023-11-12 00:00:06,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:00:06" (1/1) ... [2023-11-12 00:00:06,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:00:06,948 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_b8f91617-6ffc-4e84-8d96-37c551b4d512/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2023-11-12 00:00:06,954 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_b8f91617-6ffc-4e84-8d96-37c551b4d512/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2023-11-12 00:00:06,956 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_b8f91617-6ffc-4e84-8d96-37c551b4d512/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2023-11-12 00:00:06,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:00:06,974 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:00:07,068 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_b8f91617-6ffc-4e84-8d96-37c551b4d512/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2023-11-12 00:00:07,075 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_b8f91617-6ffc-4e84-8d96-37c551b4d512/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2023-11-12 00:00:07,076 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_b8f91617-6ffc-4e84-8d96-37c551b4d512/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2023-11-12 00:00:07,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:00:07,134 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:00:07,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07 WrapperNode [2023-11-12 00:00:07,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:00:07,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:00:07,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:00:07,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:00:07,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,210 INFO L138 Inliner]: procedures = 139, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 137 [2023-11-12 00:00:07,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:00:07,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:00:07,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:00:07,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:00:07,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:00:07,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:00:07,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:00:07,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:00:07,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:07" (1/1) ... [2023-11-12 00:00:07,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:00:07,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:00:07,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:00:07,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f91617-6ffc-4e84-8d96-37c551b4d512/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:00:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-11-12 00:00:07,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-11-12 00:00:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:00:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:00:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:00:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:00:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:00:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-11-12 00:00:07,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-11-12 00:00:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:00:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:00:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:00:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:00:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-11-12 00:00:07,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-11-12 00:00:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:00:07,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:00:07,528 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:00:07,530 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:00:07,926 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:00:08,040 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:00:08,040 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:00:08,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:00:08 BoogieIcfgContainer [2023-11-12 00:00:08,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:00:08,046 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:00:08,046 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:00:08,057 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:00:08,058 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:00:08" (1/1) ... [2023-11-12 00:00:08,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:00:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:08,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 45 states and 56 transitions. [2023-11-12 00:00:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-11-12 00:00:08,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:00:08,156 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:08,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:00:08,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:08,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 49 states and 60 transitions. [2023-11-12 00:00:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2023-11-12 00:00:08,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:00:08,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:08,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:00:09,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 55 states and 75 transitions. [2023-11-12 00:00:09,504 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2023-11-12 00:00:09,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:00:09,505 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:09,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:00:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 52 states and 67 transitions. [2023-11-12 00:00:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2023-11-12 00:00:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 00:00:10,389 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:10,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:10,518 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 00:00:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:10,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 54 states and 68 transitions. [2023-11-12 00:00:10,588 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2023-11-12 00:00:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-12 00:00:10,593 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:10,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:11,111 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-12 00:00:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 62 states and 81 transitions. [2023-11-12 00:00:11,854 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2023-11-12 00:00:11,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 00:00:11,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:11,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:18,875 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:00:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 82 states and 138 transitions. [2023-11-12 00:00:28,662 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 138 transitions. [2023-11-12 00:00:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 00:00:28,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:28,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:00:32,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 82 states and 138 transitions. [2023-11-12 00:00:32,544 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 138 transitions. [2023-11-12 00:00:32,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 00:00:32,553 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:32,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:00:48,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 85 states and 149 transitions. [2023-11-12 00:00:48,418 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 149 transitions. [2023-11-12 00:00:48,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 00:00:48,419 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:48,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:00:51,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 85 states and 149 transitions. [2023-11-12 00:00:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 149 transitions. [2023-11-12 00:00:51,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 00:00:51,707 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:51,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat