./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk --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 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:24:09,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:24:09,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:24:09,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:24:09,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:24:09,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:24:09,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:24:09,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:24:09,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:24:09,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:24:09,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:24:09,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:24:09,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:24:09,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:24:09,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:24:09,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:24:09,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:24:09,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:24:09,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:24:09,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:24:09,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:24:09,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:24:09,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:24:09,915 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:24:09,915 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:24:09,915 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:24:09,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:24:09,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:24:09,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:24:09,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:24:09,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:24:09,918 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:24:09,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:24:09,919 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_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb [2024-11-09 00:24:10,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:24:10,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:24:10,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:24:10,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:24:10,256 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:24:10,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i Unable to find full path for "g++" [2024-11-09 00:24:12,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:24:12,537 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:24:12,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2024-11-09 00:24:12,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/data/f86a04ee1/514cba447e2b43509bb425c5a8d06adc/FLAG7289bef7a [2024-11-09 00:24:12,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/data/f86a04ee1/514cba447e2b43509bb425c5a8d06adc [2024-11-09 00:24:12,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:24:12,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:24:12,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:24:12,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:24:12,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:24:12,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:24:12" (1/1) ... [2024-11-09 00:24:12,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c7e87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:12, skipping insertion in model container [2024-11-09 00:24:12,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:24:12" (1/1) ... [2024-11-09 00:24:12,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:24:13,053 WARN L250 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_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22534,22547] [2024-11-09 00:24:13,059 WARN L250 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_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22606,22619] [2024-11-09 00:24:13,062 WARN L250 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_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22746,22759] [2024-11-09 00:24:13,064 WARN L250 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_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22820,22833] [2024-11-09 00:24:13,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:24:13,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:24:13,132 WARN L250 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_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22534,22547] [2024-11-09 00:24:13,133 WARN L250 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_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22606,22619] [2024-11-09 00:24:13,135 WARN L250 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_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22746,22759] [2024-11-09 00:24:13,136 WARN L250 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_120b8492-5a45-471f-8e52-949ed7eb9600/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22820,22833] [2024-11-09 00:24:13,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:24:13,174 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:24:13,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13 WrapperNode [2024-11-09 00:24:13,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:24:13,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:24:13,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:24:13,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:24:13,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,237 INFO L138 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2024-11-09 00:24:13,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:24:13,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:24:13,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:24:13,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:24:13,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:24:13,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:24:13,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:24:13,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:24:13,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:24:13,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:24:13,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:24:13,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:24:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:24:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 00:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 00:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 00:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:24:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:24:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:24:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:24:13,504 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:24:13,506 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:24:13,823 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-09 00:24:13,824 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:24:13,905 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:24:13,905 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-09 00:24:13,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:24:13 BoogieIcfgContainer [2024-11-09 00:24:13,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:24:13,909 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:24:13,910 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:24:13,920 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:24:13,920 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:24:13" (1/1) ... [2024-11-09 00:24:13,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:24:13,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2024-11-09 00:24:13,981 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2024-11-09 00:24:13,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:24:13,983 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:13,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:14,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2024-11-09 00:24:14,324 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2024-11-09 00:24:14,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:24:14,325 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:14,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:14,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 28 states and 42 transitions. [2024-11-09 00:24:14,675 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2024-11-09 00:24:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:24:14,675 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:14,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:15,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 35 states and 50 transitions. [2024-11-09 00:24:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2024-11-09 00:24:15,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:24:15,555 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:15,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:16,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2024-11-09 00:24:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2024-11-09 00:24:16,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:24:16,964 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:16,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2024-11-09 00:24:19,423 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2024-11-09 00:24:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:24:19,424 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:19,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:19,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2024-11-09 00:24:19,864 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2024-11-09 00:24:19,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:24:19,866 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:19,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:22,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:22,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 42 states and 60 transitions. [2024-11-09 00:24:22,045 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2024-11-09 00:24:22,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 00:24:22,045 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:22,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:30,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 58 states and 95 transitions. [2024-11-09 00:24:30,555 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 95 transitions. [2024-11-09 00:24:30,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 00:24:30,556 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:30,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:24:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 59 states and 96 transitions. [2024-11-09 00:24:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 96 transitions. [2024-11-09 00:24:31,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 00:24:31,276 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:31,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:24:34,568 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:24:45,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:24:45,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 59 states and 100 transitions. [2024-11-09 00:24:45,020 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 100 transitions. [2024-11-09 00:24:45,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 00:24:45,021 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:24:45,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:24:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:24:45,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:24:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:24:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:24:45,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:24:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:24:45,677 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-11-09 00:24:45,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:24:45 ImpRootNode [2024-11-09 00:24:45,715 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:24:45,716 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:24:45,716 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:24:45,716 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:24:45,717 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:24:13" (3/4) ... [2024-11-09 00:24:45,718 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:24:45,768 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:24:45,768 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:24:45,769 INFO L158 Benchmark]: Toolchain (without parser) took 33186.84ms. Allocated memory was 153.1MB in the beginning and 388.0MB in the end (delta: 234.9MB). Free memory was 120.2MB in the beginning and 126.9MB in the end (delta: -6.7MB). Peak memory consumption was 228.7MB. Max. memory is 16.1GB. [2024-11-09 00:24:45,769 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:24:45,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.77ms. Allocated memory is still 153.1MB. Free memory was 120.2MB in the beginning and 99.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 00:24:45,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.31ms. Allocated memory is still 153.1MB. Free memory was 99.2MB in the beginning and 97.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:24:45,770 INFO L158 Benchmark]: Boogie Preprocessor took 30.73ms. Allocated memory is still 153.1MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:24:45,771 INFO L158 Benchmark]: RCFGBuilder took 636.57ms. Allocated memory is still 153.1MB. Free memory was 95.6MB in the beginning and 74.1MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 00:24:45,771 INFO L158 Benchmark]: CodeCheck took 31805.62ms. Allocated memory was 153.1MB in the beginning and 388.0MB in the end (delta: 234.9MB). Free memory was 73.9MB in the beginning and 130.1MB in the end (delta: -56.2MB). Peak memory consumption was 180.5MB. Max. memory is 16.1GB. [2024-11-09 00:24:45,772 INFO L158 Benchmark]: Witness Printer took 52.46ms. Allocated memory is still 388.0MB. Free memory was 130.1MB in the beginning and 126.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:24:45,774 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 31.7s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 714 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 387 mSDsluCounter, 628 SdHoareTripleChecker+Invalid, 7.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 483 mSDsCounter, 270 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1324 IncrementalHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 270 mSolverCounterUnsat, 145 mSDtfsCounter, 1324 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1389 GetRequests, 1143 SyntacticMatches, 32 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18274 ImplicationChecksByTransitivity, 22.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 2835 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 11/35 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1050]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1005] SLL* null = malloc(sizeof(SLL)); [L1006] null->colour = BLACK [L1007] null->next = ((void*)0) [L1009] SLL* list = malloc(sizeof(SLL)); [L1010] list->next = null [L1011] list->colour = BLACK [L1013] SLL* end = list; VAL [end={-3:0}, list={-3:0}, null={-5:0}] [L1016] COND TRUE __VERIFIER_nondet_int() [L1019] end->next = malloc(sizeof(SLL)) [L1020] EXPR end->next [L1020] end = end->next [L1021] end->next = null [L1023] COND FALSE !(__VERIFIER_nondet_int()) [L1029] end->colour = RED [L1030] end->next = malloc(sizeof(SLL)) [L1031] EXPR end->next [L1031] end = end->next [L1032] end->next = null [L1033] end->colour = BLACK VAL [end={-2:0}, list={-3:0}, null={-5:0}] [L1016] COND FALSE !(__VERIFIER_nondet_int()) [L1037] end = null [L1038] end = list VAL [end={-3:0}, list={-3:0}, null={-5:0}] [L1041] COND FALSE !(!(null != end)) VAL [end={-3:0}, list={-3:0}, null={-5:0}] [L1042] EXPR end->colour VAL [end={-3:0}, list={-3:0}, null={-5:0}] [L1042] COND FALSE !(!(BLACK == end->colour)) [L1044] COND FALSE !(null != end) VAL [end={-3:0}, list={-3:0}, null={-5:0}] [L1044] COND TRUE null != end [L1046] EXPR end->colour VAL [end={-3:0}, list={-3:0}, null={-5:0}] [L1046] COND FALSE !(RED == end->colour) [L1053] EXPR end->next [L1053] end = end->next [L1044] COND FALSE !(null != end) VAL [end={-1:0}, list={-3:0}, null={-5:0}] [L1044] COND TRUE null != end [L1046] EXPR end->colour VAL [end={-1:0}, list={-3:0}, null={-5:0}] [L1046] COND TRUE RED == end->colour [L1048] EXPR end->next [L1048] end = end->next [L1049] COND FALSE !(!(null != end)) VAL [end={-2:0}, list={-3:0}, null={-5:0}] [L1050] EXPR end->colour VAL [end={-2:0}, list={-3:0}, null={-5:0}] [L1050] COND TRUE !(BLACK != end->colour) [L1050] reach_error() VAL [end={-2:0}, list={-3:0}, null={-5:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 591.77ms. Allocated memory is still 153.1MB. Free memory was 120.2MB in the beginning and 99.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.31ms. Allocated memory is still 153.1MB. Free memory was 99.2MB in the beginning and 97.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.73ms. Allocated memory is still 153.1MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 636.57ms. Allocated memory is still 153.1MB. Free memory was 95.6MB in the beginning and 74.1MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 31805.62ms. Allocated memory was 153.1MB in the beginning and 388.0MB in the end (delta: 234.9MB). Free memory was 73.9MB in the beginning and 130.1MB in the end (delta: -56.2MB). Peak memory consumption was 180.5MB. Max. memory is 16.1GB. * Witness Printer took 52.46ms. Allocated memory is still 388.0MB. Free memory was 130.1MB in the beginning and 126.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:24:45,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120b8492-5a45-471f-8e52-949ed7eb9600/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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