./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi --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 bc4858d1901c3c90630688f631857e35419d28ea39c5c3a06b704467149a98bd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:11:50,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:11:50,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:11:50,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:11:50,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:11:50,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:11:50,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:11:50,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:11:50,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:11:50,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:11:50,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:11:50,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:11:50,132 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:11:50,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:11:50,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:11:50,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:11:50,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:11:50,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:11:50,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:11:50,136 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:11:50,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:11:50,137 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:11:50,138 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:11:50,138 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:11:50,139 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:11:50,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:11:50,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:11:50,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:11:50,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:11:50,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:11:50,142 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:11:50,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:11:50,143 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:11:50,143 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_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4858d1901c3c90630688f631857e35419d28ea39c5c3a06b704467149a98bd [2023-11-24 23:11:50,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:11:50,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:11:50,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:11:50,511 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:11:50,513 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:11:50,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-24 23:11:53,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:11:53,826 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:11:53,827 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-24 23:11:53,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/data/9686a210c/0a27736955544ed7887c22742e898746/FLAGb53778b38 [2023-11-24 23:11:53,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/data/9686a210c/0a27736955544ed7887c22742e898746 [2023-11-24 23:11:53,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:11:53,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:11:53,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:11:53,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:11:53,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:11:53,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:11:53" (1/1) ... [2023-11-24 23:11:53,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7b477b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:53, skipping insertion in model container [2023-11-24 23:11:53,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:11:53" (1/1) ... [2023-11-24 23:11:53,904 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:11:54,064 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_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i[915,928] [2023-11-24 23:11:54,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:11:54,117 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:11:54,130 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_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i[915,928] [2023-11-24 23:11:54,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:11:54,170 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:11:54,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54 WrapperNode [2023-11-24 23:11:54,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:11:54,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:11:54,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:11:54,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:11:54,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,230 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2023-11-24 23:11:54,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:11:54,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:11:54,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:11:54,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:11:54,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:11:54,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:11:54,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:11:54,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:11:54,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:11:54,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:11:54,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:11:54,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:11:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:11:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:11:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:11:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:11:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:11:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:11:54,441 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:11:54,444 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:11:54,756 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:11:54,944 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:11:54,945 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:11:54,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:54 BoogieIcfgContainer [2023-11-24 23:11:54,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:11:54,948 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:11:54,948 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:11:54,960 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:11:54,960 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:54" (1/1) ... [2023-11-24 23:11:54,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:11:55,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:55,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2023-11-24 23:11:55,034 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2023-11-24 23:11:55,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:11:55,041 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:55,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:11:55,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:11:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:11:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:11:55,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:11:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:11:56,080 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:11:56,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:11:56 ImpRootNode [2023-11-24 23:11:56,175 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:11:56,178 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:11:56,178 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:11:56,178 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:11:56,180 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:54" (3/4) ... [2023-11-24 23:11:56,183 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:11:56,184 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:11:56,185 INFO L158 Benchmark]: Toolchain (without parser) took 2317.53ms. Allocated memory is still 178.3MB. Free memory was 148.8MB in the beginning and 80.0MB in the end (delta: 68.7MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2023-11-24 23:11:56,187 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:11:56,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.64ms. Allocated memory is still 178.3MB. Free memory was 148.8MB in the beginning and 137.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:11:56,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.06ms. Allocated memory is still 178.3MB. Free memory was 137.1MB in the beginning and 135.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:11:56,190 INFO L158 Benchmark]: Boogie Preprocessor took 32.89ms. Allocated memory is still 178.3MB. Free memory was 135.0MB in the beginning and 133.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:11:56,191 INFO L158 Benchmark]: RCFGBuilder took 681.25ms. Allocated memory is still 178.3MB. Free memory was 133.7MB in the beginning and 124.9MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:11:56,192 INFO L158 Benchmark]: CodeCheck took 1226.82ms. Allocated memory is still 178.3MB. Free memory was 124.9MB in the beginning and 80.9MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-24 23:11:56,193 INFO L158 Benchmark]: Witness Printer took 6.09ms. Allocated memory is still 178.3MB. Free memory was 80.9MB in the beginning and 80.0MB in the end (delta: 854.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:11:56,203 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 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of bitwiseOr at line 44. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -8; [L23] signed char var_1_10 = -64; [L24] unsigned char var_1_11 = 0; [L25] unsigned char var_1_12 = 0; [L26] unsigned char var_1_13 = 1; [L27] unsigned char var_1_14 = 0; [L28] unsigned char var_1_15 = 0; [L29] signed long int var_1_16 = -16; [L30] float var_1_17 = 3.5; [L31] float var_1_18 = 128.45; [L32] unsigned long int var_1_19 = 50; [L33] unsigned long int var_1_20 = 25; [L84] isInitial = 1 [L85] FCALL initially() [L86] COND TRUE 1 [L87] FCALL updateLastVariables() [L88] CALL updateVariables() [L59] var_1_10 = __VERIFIER_nondet_char() [L60] CALL assume_abort_if_not(var_1_10 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_10 >= -127) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L61] CALL assume_abort_if_not(var_1_10 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_10 <= 126) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L62] var_1_12 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L64] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L65] var_1_14 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L67] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L68] var_1_15 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L70] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L71] var_1_18 = __VERIFIER_nondet_float() [L72] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_19=50, var_1_1=-8, var_1_20=25] [L73] var_1_20 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_19=50, var_1_1=-8] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_19=50, var_1_1=-8] [L75] CALL assume_abort_if_not(var_1_20 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_19=50, var_1_1=-8, var_1_20=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_20 <= 4294967294) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_19=50, var_1_1=-8, var_1_20=0] [L88] RET updateVariables() [L89] CALL step() [L37] var_1_13 = (var_1_14 && var_1_15) [L38] var_1_17 = var_1_18 [L39] var_1_19 = var_1_20 [L40] COND FALSE !((- (var_1_17 + var_1_17)) > var_1_17) [L43] var_1_16 = var_1_19 [L44] EXPR var_1_16 | var_1_19 [L44] COND FALSE !(((var_1_16 | var_1_19) > var_1_16) && var_1_11) [L55] var_1_1 = var_1_10 [L89] RET step() [L90] CALL, EXPR property() [L80] EXPR var_1_16 | var_1_19 [L80-L81] return ((((((((var_1_16 | var_1_19) > var_1_16) && var_1_11) ? (((var_1_19 != -16) && (var_1_17 <= (var_1_17 + var_1_17))) ? ((var_1_17 > var_1_17) ? (var_1_1 == ((signed char) var_1_10)) : (var_1_1 == ((signed char) var_1_10))) : (var_1_1 == ((signed char) var_1_10))) : (var_1_1 == ((signed char) var_1_10))) && (((- (var_1_17 + var_1_17)) > var_1_17) ? (var_1_11 == ((unsigned char) var_1_12)) : 1)) && (var_1_13 == ((unsigned char) (var_1_14 && var_1_15)))) && (var_1_16 == ((signed long int) var_1_19))) && (var_1_17 == ((float) var_1_18))) && (var_1_19 == ((unsigned long int) var_1_20)) ; [L90] RET, EXPR property() [L90] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=0, var_1_17=2, var_1_18=2, var_1_19=0, var_1_1=126, var_1_20=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=0, var_1_17=2, var_1_18=2, var_1_19=0, var_1_1=126, var_1_20=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.64ms. Allocated memory is still 178.3MB. Free memory was 148.8MB in the beginning and 137.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.06ms. Allocated memory is still 178.3MB. Free memory was 137.1MB in the beginning and 135.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.89ms. Allocated memory is still 178.3MB. Free memory was 135.0MB in the beginning and 133.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 681.25ms. Allocated memory is still 178.3MB. Free memory was 133.7MB in the beginning and 124.9MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1226.82ms. Allocated memory is still 178.3MB. Free memory was 124.9MB in the beginning and 80.9MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 6.09ms. Allocated memory is still 178.3MB. Free memory was 80.9MB in the beginning and 80.0MB in the end (delta: 854.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:11:56,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi --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 bc4858d1901c3c90630688f631857e35419d28ea39c5c3a06b704467149a98bd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:11:58,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:11:58,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:11:59,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:11:59,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:11:59,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:11:59,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:11:59,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:11:59,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:11:59,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:11:59,024 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:11:59,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:11:59,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:11:59,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:11:59,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:11:59,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:11:59,032 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:11:59,032 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:11:59,033 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:11:59,033 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:11:59,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:11:59,034 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:11:59,034 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:11:59,035 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:11:59,035 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:11:59,036 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:11:59,036 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:11:59,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:11:59,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:11:59,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:11:59,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:11:59,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:11:59,039 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:11:59,040 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:11:59,040 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:11:59,040 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:11:59,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:11:59,041 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4858d1901c3c90630688f631857e35419d28ea39c5c3a06b704467149a98bd [2023-11-24 23:11:59,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:11:59,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:11:59,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:11:59,515 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:11:59,516 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:11:59,518 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-24 23:12:02,804 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:12:03,105 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:12:03,111 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-24 23:12:03,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/data/c53924f10/1354982e46a5438d83fb6300a52f9405/FLAGc579575a5 [2023-11-24 23:12:03,144 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/data/c53924f10/1354982e46a5438d83fb6300a52f9405 [2023-11-24 23:12:03,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:12:03,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:12:03,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:12:03,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:12:03,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:12:03,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4064e25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03, skipping insertion in model container [2023-11-24 23:12:03,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,209 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:12:03,418 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_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i[915,928] [2023-11-24 23:12:03,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:12:03,485 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:12:03,498 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_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i[915,928] [2023-11-24 23:12:03,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:12:03,535 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:12:03,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03 WrapperNode [2023-11-24 23:12:03,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:12:03,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:12:03,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:12:03,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:12:03,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,642 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2023-11-24 23:12:03,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:12:03,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:12:03,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:12:03,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:12:03,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:12:03,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:12:03,697 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:12:03,697 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:12:03,698 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:03" (1/1) ... [2023-11-24 23:12:03,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:12:03,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:12:03,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:12:03,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:12:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:12:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:12:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:12:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:12:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:12:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:12:03,866 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:12:03,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:12:04,382 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:12:04,475 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:12:04,475 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:12:04,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:12:04 BoogieIcfgContainer [2023-11-24 23:12:04,478 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:12:04,479 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:12:04,479 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:12:04,490 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:12:04,490 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:12:04" (1/1) ... [2023-11-24 23:12:04,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:12:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:04,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2023-11-24 23:12:04,558 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2023-11-24 23:12:04,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:04,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:04,564 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:04,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:04,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:04,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:12:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:05,085 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:05,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:05,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:09,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-24 23:12:10,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:10,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2023-11-24 23:12:10,002 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2023-11-24 23:12:10,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:10,004 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:10,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:10,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:10,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:10,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 23:12:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:10,398 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:10,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:12:10,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:13,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 46 states and 78 transitions. [2023-11-24 23:12:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 78 transitions. [2023-11-24 23:12:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:14,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:14,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:14,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:14,250 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:14,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:12:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:14,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:14,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:14,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:18,317 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:12:18,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 96 transitions. [2023-11-24 23:12:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-11-24 23:12:19,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:19,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:19,874 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:19,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:19,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:19,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 23:12:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:20,232 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:20,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:20,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:22,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:23,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 96 transitions. [2023-11-24 23:12:23,091 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-11-24 23:12:23,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:23,093 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:23,094 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:23,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:23,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:23,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 23:12:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:23,403 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:23,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:23,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:25,967 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:25,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:26,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:26,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 96 transitions. [2023-11-24 23:12:26,032 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-11-24 23:12:26,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:26,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:26,034 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:26,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:26,036 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:26,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 23:12:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:26,426 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:26,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:26,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:28,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-24 23:12:28,769 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:12:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 96 transitions. [2023-11-24 23:12:28,825 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-11-24 23:12:28,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:28,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:28,827 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:28,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:28,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:28,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 23:12:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:29,122 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:29,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:29,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:31,455 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:12:31,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 96 transitions. [2023-11-24 23:12:31,636 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-11-24 23:12:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:31,638 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:31,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:31,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:31,645 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:31,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-24 23:12:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:32,029 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:32,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:32,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:34,325 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:12:34,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:34,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 96 transitions. [2023-11-24 23:12:34,402 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-11-24 23:12:34,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:34,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:34,403 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:34,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:34,406 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:34,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-24 23:12:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:34,764 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:34,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:34,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:36,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:37,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 96 transitions. [2023-11-24 23:12:37,054 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-11-24 23:12:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:37,056 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:37,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:37,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:37,057 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:37,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-24 23:12:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:37,432 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:37,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:37,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 23:12:40,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 96 transitions. [2023-11-24 23:12:40,197 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-11-24 23:12:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:40,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:40,205 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:40,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:40,206 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:40,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-24 23:12:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:40,556 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:40,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-24 23:12:40,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 77 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-24 23:12:44,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-24 23:12:46,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:46,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 64 states and 142 transitions. [2023-11-24 23:12:46,988 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 142 transitions. [2023-11-24 23:12:46,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:12:46,989 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:46,989 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:12:46,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:12:46,996 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:12:47,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6e07c-46dd-48ac-a8d0-7e51bf07bf86/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-24 23:12:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:47,317 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:12:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:47,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:12:47,386 INFO L285 TraceCheckSpWp]: Computing forward predicates...