./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.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_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/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_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/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_3286249c-135e-4dcd-9560-233f53a223bd/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 134b13cd1b8ac1dc8abd325434d56d90d6a754291c767bced87290501af7bb0e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:59:57,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:59:57,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:59:57,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:59:57,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:59:57,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:59:57,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:59:57,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:59:57,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:59:57,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:59:57,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:59:57,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:59:57,656 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:59:57,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:59:57,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:59:57,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:59:57,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:59:57,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:59:57,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:59:57,660 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:59:57,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:59:57,661 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:59:57,662 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:59:57,662 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:59:57,663 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:59:57,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:59:57,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:59:57,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:59:57,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:59:57,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:59:57,666 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:59:57,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:59:57,667 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:59:57,667 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_3286249c-135e-4dcd-9560-233f53a223bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134b13cd1b8ac1dc8abd325434d56d90d6a754291c767bced87290501af7bb0e [2023-11-24 22:59:57,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:59:57,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:59:57,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:59:57,979 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:59:57,979 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:59:57,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2023-11-24 23:00:01,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:00:01,336 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:00:01,337 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2023-11-24 23:00:01,348 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/data/3c3dfcd87/b0128c41e65646ffab18dc03fd357a69/FLAG1ae631e2b [2023-11-24 23:00:01,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/data/3c3dfcd87/b0128c41e65646ffab18dc03fd357a69 [2023-11-24 23:00:01,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:00:01,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:00:01,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:01,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:00:01,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:00:01,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110bf652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01, skipping insertion in model container [2023-11-24 23:00:01,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:00:01,614 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_3286249c-135e-4dcd-9560-233f53a223bd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i[915,928] [2023-11-24 23:00:01,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:01,675 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:00:01,693 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_3286249c-135e-4dcd-9560-233f53a223bd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i[915,928] [2023-11-24 23:00:01,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:01,741 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:00:01,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01 WrapperNode [2023-11-24 23:00:01,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:01,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:01,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:00:01,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:00:01,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,795 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2023-11-24 23:00:01,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:01,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:00:01,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:00:01,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:00:01,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:00:01,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:00:01,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:00:01,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:00:01,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:01" (1/1) ... [2023-11-24 23:00:01,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:01,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:00:01,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:00:01,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:00:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:00:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:00:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:00:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:00:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:00:01,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:00:01,991 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:00:01,993 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:00:02,410 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:00:02,574 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:00:02,574 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:00:02,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:02 BoogieIcfgContainer [2023-11-24 23:00:02,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:00:02,577 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:00:02,577 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:00:02,587 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:00:02,587 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:02" (1/1) ... [2023-11-24 23:00:02,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:00:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-11-24 23:00:02,654 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-24 23:00:02,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:02,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:02,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:02,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:00:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:03,048 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:00:03,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:00:03 ImpRootNode [2023-11-24 23:00:03,093 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:00:03,094 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:00:03,094 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:00:03,095 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:00:03,095 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:02" (3/4) ... [2023-11-24 23:00:03,097 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:00:03,098 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:00:03,099 INFO L158 Benchmark]: Toolchain (without parser) took 1722.13ms. Allocated memory is still 163.6MB. Free memory was 130.8MB in the beginning and 129.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2023-11-24 23:00:03,100 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:03,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.06ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 118.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:00:03,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.24ms. Allocated memory is still 163.6MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:00:03,101 INFO L158 Benchmark]: Boogie Preprocessor took 37.96ms. Allocated memory is still 163.6MB. Free memory was 116.8MB in the beginning and 115.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:03,102 INFO L158 Benchmark]: RCFGBuilder took 741.13ms. Allocated memory is still 163.6MB. Free memory was 115.2MB in the beginning and 89.5MB in the end (delta: 25.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-24 23:00:03,102 INFO L158 Benchmark]: CodeCheck took 516.80ms. Allocated memory is still 163.6MB. Free memory was 89.5MB in the beginning and 130.7MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:03,103 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 129.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:03,107 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 25 NumberOfCodeBlocks, 25 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 56, overapproximation of bitwiseAnd at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -16; [L23] signed long int var_1_6 = 10; [L24] unsigned char var_1_8 = 0; [L25] unsigned char var_1_9 = 4; [L26] float var_1_10 = 15.5; [L27] float var_1_11 = 99.125; [L28] signed short int var_1_12 = 2; [L29] signed long int last_1_var_1_1 = -16; [L60] isInitial = 1 [L61] FCALL initially() [L62] COND TRUE 1 [L63] CALL updateLastVariables() [L53] last_1_var_1_1 = var_1_1 [L63] RET updateLastVariables() [L64] CALL updateVariables() [L42] var_1_6 = __VERIFIER_nondet_long() [L43] CALL assume_abort_if_not(var_1_6 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not(var_1_6 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=4] [L44] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L44] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=4] [L45] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=4] [L46] var_1_9 = __VERIFIER_nondet_uchar() [L47] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0] [L48] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=3] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=3] [L49] var_1_11 = __VERIFIER_nondet_float() [L50] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=3] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_12=2, var_1_1=-16, var_1_6=1, var_1_8=0, var_1_9=3] [L64] RET updateVariables() [L65] CALL step() [L33] var_1_8 = var_1_9 [L34] var_1_10 = var_1_11 [L35] var_1_12 = var_1_9 [L36] EXPR var_1_8 & (var_1_12 * var_1_8) [L36] signed long int stepLocal_0 = var_1_8 & (var_1_12 * var_1_8); [L37] COND FALSE !(stepLocal_0 < (last_1_var_1_1 / var_1_6)) [L65] RET step() [L66] CALL, EXPR property() [L56] EXPR var_1_8 & (var_1_12 * var_1_8) [L56-L57] return (((((var_1_8 & (var_1_12 * var_1_8)) < (last_1_var_1_1 / var_1_6)) ? (var_1_1 == ((signed long int) (var_1_8 + 256))) : 1) && (var_1_8 == ((unsigned char) var_1_9))) && (var_1_10 == ((float) var_1_11))) && (var_1_12 == ((signed short int) var_1_9)) ; [L66] RET, EXPR property() [L66] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=-16, var_1_10=2, var_1_11=2, var_1_12=3, var_1_1=-16, var_1_6=1, var_1_8=3, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=-16, var_1_10=2, var_1_11=2, var_1_12=3, var_1_1=-16, var_1_6=1, var_1_8=3, var_1_9=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.06ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 118.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.24ms. Allocated memory is still 163.6MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.96ms. Allocated memory is still 163.6MB. Free memory was 116.8MB in the beginning and 115.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 741.13ms. Allocated memory is still 163.6MB. Free memory was 115.2MB in the beginning and 89.5MB in the end (delta: 25.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * CodeCheck took 516.80ms. Allocated memory is still 163.6MB. Free memory was 89.5MB in the beginning and 130.7MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 129.7MB in the end (delta: 1.0MB). 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 23:00:03,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/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 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_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/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_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/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_3286249c-135e-4dcd-9560-233f53a223bd/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 134b13cd1b8ac1dc8abd325434d56d90d6a754291c767bced87290501af7bb0e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:00:05,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:00:05,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:00:06,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:00:06,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:00:06,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:00:06,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:00:06,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:00:06,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:00:06,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:00:06,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:00:06,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:00:06,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:00:06,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:00:06,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:00:06,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:00:06,043 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:00:06,044 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:00:06,044 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:00:06,045 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:00:06,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:00:06,046 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:00:06,046 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:00:06,047 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:00:06,047 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:00:06,048 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:06,048 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:00:06,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:00:06,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:06,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:00:06,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:00:06,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:00:06,052 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:00:06,052 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:06,053 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:00:06,053 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:00:06,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:00:06,053 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_3286249c-135e-4dcd-9560-233f53a223bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134b13cd1b8ac1dc8abd325434d56d90d6a754291c767bced87290501af7bb0e [2023-11-24 23:00:06,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:00:06,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:00:06,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:00:06,557 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:00:06,558 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:00:06,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2023-11-24 23:00:09,669 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:00:09,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:00:09,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2023-11-24 23:00:09,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/data/72830f06d/32a949cf4f434c7384d6b80d66a854eb/FLAGf369e09f0 [2023-11-24 23:00:10,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/data/72830f06d/32a949cf4f434c7384d6b80d66a854eb [2023-11-24 23:00:10,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:00:10,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:00:10,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:10,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:00:10,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:00:10,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1528c9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10, skipping insertion in model container [2023-11-24 23:00:10,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:00:10,245 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_3286249c-135e-4dcd-9560-233f53a223bd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i[915,928] [2023-11-24 23:00:10,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:10,314 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:00:10,332 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_3286249c-135e-4dcd-9560-233f53a223bd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i[915,928] [2023-11-24 23:00:10,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:10,385 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:00:10,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10 WrapperNode [2023-11-24 23:00:10,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:10,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:10,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:00:10,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:00:10,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,452 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2023-11-24 23:00:10,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:10,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:00:10,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:00:10,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:00:10,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:00:10,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:00:10,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:00:10,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:00:10,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:10" (1/1) ... [2023-11-24 23:00:10,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:10,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:00:10,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:00:10,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:00:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:00:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:00:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:00:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:00:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:00:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:00:10,706 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:00:10,709 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:00:11,008 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:00:11,102 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:00:11,102 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:00:11,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:11 BoogieIcfgContainer [2023-11-24 23:00:11,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:00:11,105 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:00:11,105 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:00:11,116 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:00:11,118 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:11" (1/1) ... [2023-11-24 23:00:11,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:00:11,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-11-24 23:00:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-24 23:00:11,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:11,208 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:11,208 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:11,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:11,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:11,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:00:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:11,683 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:11,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:11,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:12,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-24 23:00:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2023-11-24 23:00:13,384 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2023-11-24 23:00:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:13,385 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:13,385 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:13,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:13,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:13,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 23:00:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:13,742 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:13,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:13,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:14,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:15,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:15,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:15,466 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:15,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:15,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:15,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:00:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:15,796 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:15,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:15,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:16,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-24 23:00:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:16,462 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:16,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:16,465 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:16,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:16,466 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:16,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 23:00:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:16,750 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:16,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:16,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:17,382 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:17,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:17,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:17,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:17,406 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:17,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:17,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:17,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:17,411 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:17,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 23:00:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:17,792 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:17,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:17,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:18,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-24 23:00:18,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:18,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:18,385 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:18,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:18,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:18,387 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:18,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:18,388 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:18,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 23:00:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:18,702 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:18,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:18,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:19,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-24 23:00:19,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:19,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:19,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:19,289 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:19,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:19,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:19,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 23:00:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:19,585 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:19,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:19,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:20,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:20,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:20,132 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:20,133 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:20,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:20,136 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:20,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-24 23:00:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:20,429 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:20,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:20,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:20,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:21,001 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:21,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-11-24 23:00:21,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:21,012 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:21,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:21,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:21,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:21,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-24 23:00:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:21,303 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:21,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:21,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:21,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:21,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:21,891 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:21,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:21,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:21,892 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:21,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:21,894 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:21,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-24 23:00:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:22,209 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:22,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:22,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:22,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:22,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:22,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:22,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:22,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:22,790 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:22,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:22,791 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:22,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-24 23:00:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:23,065 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:23,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:23,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:23,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:23,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:23,628 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:23,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:23,629 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:23,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:23,630 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:23,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-24 23:00:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:23,891 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:23,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:23,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:24,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:24,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:24,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:24,455 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:24,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:24,456 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:24,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:24,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:24,458 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:24,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-24 23:00:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:24,793 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:24,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:24,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:25,265 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:25,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:25,270 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:25,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:25,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:25,272 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:25,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:25,273 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:25,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-24 23:00:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:25,513 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:25,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:25,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:25,975 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:25,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-11-24 23:00:25,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:25,982 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:25,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:25,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:25,983 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:25,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:25,985 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:25,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-24 23:00:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:26,224 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:26,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:26,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:26,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:26,619 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:26,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:26,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:26,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:26,621 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:26,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-24 23:00:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:26,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:26,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:26,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:27,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:27,345 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:27,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:27,353 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:27,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:27,354 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:27,354 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:27,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:27,355 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:27,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-24 23:00:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:27,609 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:27,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:27,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:28,033 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:28,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:28,039 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:28,040 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:28,041 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:28,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:28,042 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:28,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-24 23:00:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:28,292 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:28,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:28,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:28,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:28,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:28,698 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:28,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:28,699 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:28,699 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:28,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:28,701 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:28,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-24 23:00:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:29,056 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:29,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:29,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:29,454 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:29,457 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:29,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:29,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:29,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:29,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:29,464 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:29,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:29,469 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:29,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-24 23:00:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:29,835 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:29,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:29,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:30,261 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:30,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:30,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:30,266 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:30,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:30,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:30,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:30,273 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:30,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-11-24 23:00:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:30,562 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:30,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:30,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:31,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:31,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:31,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:31,031 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:31,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:31,033 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:31,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-24 23:00:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:31,314 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:31,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:31,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:31,702 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:31,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:31,707 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:31,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:31,707 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:31,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:31,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:31,710 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:31,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-24 23:00:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,022 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:32,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:32,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:32,489 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:32,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:32,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:32,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:32,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:32,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:32,501 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:32,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-24 23:00:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,759 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:32,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:33,260 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:33,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:33,268 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:33,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:33,269 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:33,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:33,273 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:33,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-11-24 23:00:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:33,635 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:33,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:33,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:34,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:34,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:34,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:34,158 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:34,158 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:34,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:34,161 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:34,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-24 23:00:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:34,459 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:34,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:34,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:34,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:34,881 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:34,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:34,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:34,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:34,885 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:34,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:34,887 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:34,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-11-24 23:00:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:35,147 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:35,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:35,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:35,505 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:35,507 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:35,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:35,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:35,515 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:35,515 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:35,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:35,517 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:35,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-24 23:00:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:35,770 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:35,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:35,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:36,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:36,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:36,251 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:36,252 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:36,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:36,255 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:36,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-11-24 23:00:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:36,507 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:36,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:36,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:36,989 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:36,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:36,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:36,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:36,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:36,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:36,997 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:36,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:36,999 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:37,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-24 23:00:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:37,240 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:37,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:37,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:37,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:37,633 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (31)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:37,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:37,636 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:37,636 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:37,636 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:37,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:37,643 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:37,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-11-24 23:00:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:37,906 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:37,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:37,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:38,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:38,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:38,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:38,298 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:38,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:38,299 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:38,299 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:38,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:38,301 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:38,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-11-24 23:00:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:38,568 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:38,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:38,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:38,995 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (33)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:38,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:39,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:39,001 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:39,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:39,001 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:39,002 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:39,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:39,006 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:39,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-11-24 23:00:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:39,271 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:39,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:39,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:39,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:39,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:39,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:39,703 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:39,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:39,704 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:39,704 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:39,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:39,705 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:39,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-11-24 23:00:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:39,968 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:40,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:40,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:40,325 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:40,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:40,329 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (35)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:40,333 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:40,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:40,334 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:40,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:40,335 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:40,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-11-24 23:00:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:40,606 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:40,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:40,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:41,055 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:41,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:41,065 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:41,065 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:41,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:41,066 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:41,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-11-24 23:00:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:41,331 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:41,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:41,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:41,720 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (37)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:41,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:41,733 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:41,733 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:41,733 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:41,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:41,735 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:41,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-11-24 23:00:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:42,000 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:42,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:42,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:42,447 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (38)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:42,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:42,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:42,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:42,455 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:42,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:42,460 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:42,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-11-24 23:00:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:42,716 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:42,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:42,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:43,069 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (39)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:43,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:43,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:43,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:43,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:43,073 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:43,073 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:43,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:43,074 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:43,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-11-24 23:00:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:43,314 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:43,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:43,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:43,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:43,681 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (40)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:43,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:43,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:43,688 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:43,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:43,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:43,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:43,693 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:43,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-11-24 23:00:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:43,931 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:43,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:43,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:44,301 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:44,304 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (41)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:44,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:44,311 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:44,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:44,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:44,312 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:44,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:44,312 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:44,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-11-24 23:00:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:44,652 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:44,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:00:44,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:00:45,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:45,010 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:45,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:45,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:45,011 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:45,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:45,012 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:45,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-11-24 23:00:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:45,259 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:45,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:45,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:45,675 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:45,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:45,680 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:45,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:45,682 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:45,682 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:45,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:45,683 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:45,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-11-24 23:00:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:45,974 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:46,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:46,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:46,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:46,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:46,519 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:46,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:46,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:46,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:46,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:46,522 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:46,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-11-24 23:00:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:46,806 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:46,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:46,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:47,225 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:47,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:47,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:47,232 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:47,232 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:47,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:47,233 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:47,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-11-24 23:00:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:47,498 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:47,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:47,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:47,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:47,911 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:47,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:47,911 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:47,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:47,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:47,913 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:47,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-11-24 23:00:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:48,286 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:48,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:48,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:48,740 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:48,743 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (47)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:48,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:48,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:48,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:48,748 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:48,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:48,749 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:48,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-11-24 23:00:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:49,021 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:49,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:49,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:49,411 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (48)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:49,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:49,415 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:49,415 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:49,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:49,417 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:49,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-11-24 23:00:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:49,687 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:49,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:49,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:50,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-11-24 23:00:50,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:50,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:50,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:50,190 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:50,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:50,191 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:50,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-11-24 23:00:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:50,446 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:50,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:50,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:50,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-11-24 23:00:50,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:50,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:50,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:50,837 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:50,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:50,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:50,838 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:50,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-11-24 23:00:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:51,096 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:51,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:51,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:51,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:51,473 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:51,473 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:51,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:51,474 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:51,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-11-24 23:00:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:51,738 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:51,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:00:51,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:00:52,196 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:52,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-11-24 23:00:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-24 23:00:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:00:52,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:52,201 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:52,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:52,203 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:52,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3286249c-135e-4dcd-9560-233f53a223bd/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-11-24 23:00:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:52,448 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported